HG_REPOSITORIES/LPP/INSTRUMENTATION/lppserial Commit - r37:27201139c7da

Fixed x86_linux regression -> read returns without timeout isn't good at all!...

jeandet@pc-de-jeandet.lpp.polytechnique.fr -

r37:27201139c7da alexis

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r37:27201139c7da

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autom4te.cache/output.1 +142 -137

             @%:@! /bin/sh
             @%:@ Guess values for system-dependent variables and create Makefiles.
-            @%:@ Generated by GNU Autoconf 2.68 for librs232 2.1.0.
+            @%:@ Generated by GNU Autoconf 2.69 for librs232 2.1.0.
             @%:@
             @%:@ Report bugs to <alexis.jeandet@lpp.polytechnique.fr>.
             @%:@
             @%:@
-            @%:@ Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+            @%:@ Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
-            @%:@ 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
-            @%:@ Foundation, Inc.
             @%:@
             @%:@
             @%:@ This configure script is free software; the Free Software Foundation
             # CDPATH.
             (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+            # Use a proper internal environment variable to ensure we don't fall
+              # into an infinite loop, continuously re-executing ourselves.
+              if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+                _as_can_reexec=no; export _as_can_reexec;
+                # We cannot yet assume a decent shell, so we have to provide a
+            # neutralization value for shells without unset; and this also
+            # works around shells that cannot unset nonexistent variables.
+            # Preserve -v and -x to the replacement shell.
+            BASH_ENV=/dev/null
+            ENV=/dev/null
+            (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+            case $- in @%:@ ((((
+              *v*x* | *x*v* ) as_opts=-vx ;;
+              *v* ) as_opts=-v ;;
+              *x* ) as_opts=-x ;;
+              * ) as_opts= ;;
+            esac
+            exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+            # Admittedly, this is quite paranoid, since all the known shells bail
+            # out after a failed `exec'.
+            $as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+            as_fn_exit 255
+              fi
+              # We don't want this to propagate to other subprocesses.
+                      { _as_can_reexec=; unset _as_can_reexec;}
             if test "x$CONFIG_SHELL" = x; then
               as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
               emulate sh
             else
               exitcode=1; echo positional parameters were not saved.
             fi
-            test x\$exitcode = x0 || exit 1"
+            test x\$exitcode = x0 || exit 1
+            test -x / || exit 1"
               as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
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               eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
                   if test "x$CONFIG_SHELL" != x; then :
+              export CONFIG_SHELL
               # We cannot yet assume a decent shell, so we have to provide a
             	# neutralization value for shells without unset; and this also
             	# works around shells that cannot unset nonexistent variables.
             	BASH_ENV=/dev/null
             	ENV=/dev/null
             	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-            	export CONFIG_SHELL
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             	  *x* ) as_opts=-x ;;
             	  * ) as_opts= ;;
             	esac
-            	exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
+            exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+            # Admittedly, this is quite paranoid, since all the known shells bail
+            # out after a failed `exec'.
+            $as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+            exit 255
             fi
                 if test x$as_have_required = xno; then :
             } @%:@ as_fn_mkdir_p
+            @%:@ as_fn_executable_p FILE
+            @%:@ -----------------------
+            @%:@ Test if FILE is an executable regular file.
+            as_fn_executable_p ()
+            {
+              test -f "$1" && test -x "$1"
+            } @%:@ as_fn_executable_p
             @%:@ as_fn_append VAR VALUE
             @%:@ ----------------------
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               chmod +x "$as_me.lineno" ||
                 { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+              # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+              # already done that, so ensure we don't try to do so again and fall
+              # in an infinite loop.  This has already happened in practice.
+              _as_can_reexec=no; export _as_can_reexec
               # Don't try to exec as it changes $[0], causing all sort of problems
               # (the dirname of $[0] is not the place where we might find the
               # original and so on.  Autoconf is especially sensitive to this).
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                 # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-                # In both cases, we have to default to `cp -p'.
+                # In both cases, we have to default to `cp -pR'.
                 ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-                  as_ln_s='cp -p'
+                  as_ln_s='cp -pR'
               elif ln conf$$.file conf$$ 2>/dev/null; then
                 as_ln_s=ln
               else
-                as_ln_s='cp -p'
+                as_ln_s='cp -pR'
               fi
             else
-              as_ln_s='cp -p'
+              as_ln_s='cp -pR'
             fi
             rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
             rmdir conf$$.dir 2>/dev/null
               as_mkdir_p=false
             fi
-            if test -x / >/dev/null 2>&1; then
               as_test_x='test -x'
-            else
+            as_executable_p=as_fn_executable_p
-              if ls -dL / >/dev/null 2>&1; then
-                as_ls_L_option=L
-              else
-                as_ls_L_option=
-              fi
-              as_test_x='
-                eval sh -c '\''
-                  if test -d "$1"; then
-            	test -d "$1/.";
-                  else
-            	case $1 in @%:@(
-            	-*)set "./$1";;
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                 cross_compiling=yes
               fi
             if $ac_init_version; then
               cat <<\_ACEOF
             librs232 configure 2.1.0
-            generated by GNU Autoconf 2.68
+            generated by GNU Autoconf 2.69
-            Copyright (C) 2010 Free Software Foundation, Inc.
+            Copyright (C) 2012 Free Software Foundation, Inc.
             This configure script is free software; the Free Software Foundation
             gives unlimited permission to copy, distribute and modify it.
             _ACEOF
             	 test ! -s conftest.err
                    } && test -s conftest$ac_exeext && {
             	 test "$cross_compiling" = yes ||
-            	 $as_test_x conftest$ac_exeext
+            	 test -x conftest$ac_exeext
                    }; then :
               ac_retval=0
             else
             running configure, to aid debugging if configure makes a mistake.
             It was created by librs232 $as_me 2.1.0, which was
-            generated by GNU Autoconf 2.68.  Invocation command line was
+            generated by GNU Autoconf 2.69.  Invocation command line was
               $ $0 $@
                 # by default.
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-            	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
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                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_STRIP="strip"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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-            	   { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; } || continue
+            	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
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+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_CC="${ac_tool_prefix}gcc"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
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+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
             /* end confdefs.h.  */
             #include <stdarg.h>
             #include <stdio.h>
-            #include <sys/types.h>
+            struct stat;
-            #include <sys/stat.h>
             /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
             struct buf { int x; };
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-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
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-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
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-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
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                 ac_cv_prog_CC="${ac_tool_prefix}cc"
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-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_CC="$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
             /* end confdefs.h.  */
             #include <stdarg.h>
             #include <stdio.h>
-            #include <sys/types.h>
+            struct stat;
-            #include <sys/stat.h>
             /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
             struct buf { int x; };
             FILE * (*rcsopen) (struct buf *, struct stat *, int);
             int
             main ()
             {
-            /* FIXME: Include the comments suggested by Paul. */
             #ifndef __cplusplus
-              /* Ultrix mips cc rejects this.  */
+              /* Ultrix mips cc rejects this sort of thing.  */
               typedef int charset[2];
-              const charset cs;
+              const charset cs = { 0, 0 };
               /* SunOS 4.1.1 cc rejects this.  */
               char const *const *pcpcc;
               char **ppc;
               ++pcpcc;
               ppc = (char**) pcpcc;
               pcpcc = (char const *const *) ppc;
-              { /* SCO 3.2v4 cc rejects this.  */
+              { /* SCO 3.2v4 cc rejects this sort of thing.  */
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                 *t++ = 0;
                 iptr p = 0;
                 ++p;
               }
-              { /* AIX XL C 1.02.0.0 rejects this saying
+              { /* AIX XL C 1.02.0.0 rejects this sort of thing, saying
                    "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
-                struct s { int j; const int *ap[3]; };
+                struct s { int j; const int *ap[3]; } bx;
-                struct s *b; b->j = 5;
+                struct s *b = &bx; b->j = 5;
               }
               { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
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-                  { test -f "$ac_path_SED" && $as_test_x "$ac_path_SED"; } || continue
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             case `"$ac_path_SED" --version 2>&1` in
                 for ac_prog in grep ggrep; do
                 for ac_exec_ext in '' $ac_executable_extensions; do
                   ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
-                  { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+                  as_fn_executable_p "$ac_path_GREP" || continue
             # Check for GNU ac_path_GREP and select it if it is found.
               # Check for GNU $ac_path_GREP
             case `"$ac_path_GREP" --version 2>&1` in
                 for ac_prog in egrep; do
                 for ac_exec_ext in '' $ac_executable_extensions; do
                   ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-                  { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+                  as_fn_executable_p "$ac_path_EGREP" || continue
             # Check for GNU ac_path_EGREP and select it if it is found.
               # Check for GNU $ac_path_EGREP
             case `"$ac_path_EGREP" --version 2>&1` in
                 for ac_prog in fgrep; do
                 for ac_exec_ext in '' $ac_executable_extensions; do
                   ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
-                  { test -f "$ac_path_FGREP" && $as_test_x "$ac_path_FGREP"; } || continue
+                  as_fn_executable_p "$ac_path_FGREP" || continue
             # Check for GNU ac_path_FGREP and select it if it is found.
               # Check for GNU $ac_path_FGREP
             case `"$ac_path_FGREP" --version 2>&1` in
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_OBJDUMP="objdump"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_DLLTOOL="dlltool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_AR="$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_STRIP="${ac_tool_prefix}strip"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_STRIP="strip"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_RANLIB="ranlib"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_NMEDIT="nmedit"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_LIPO="lipo"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_OTOOL="otool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_OTOOL64="otool64"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_RANLIB="ranlib"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
                 # ... but there are two gotchas:
                 # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
                 # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-                # In both cases, we have to default to `cp -p'.
+                # In both cases, we have to default to `cp -pR'.
                 ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-                  as_ln_s='cp -p'
+                  as_ln_s='cp -pR'
               elif ln conf$$.file conf$$ 2>/dev/null; then
                 as_ln_s=ln
               else
-                as_ln_s='cp -p'
+                as_ln_s='cp -pR'
               fi
             else
-              as_ln_s='cp -p'
+              as_ln_s='cp -pR'
             fi
             rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
             rmdir conf$$.dir 2>/dev/null
               as_mkdir_p=false
             fi
-            if test -x / >/dev/null 2>&1; then
+            @%:@ as_fn_executable_p FILE
+            @%:@ -----------------------
+            @%:@ Test if FILE is an executable regular file.
+            as_fn_executable_p ()
+            {
+              test -f "$1" && test -x "$1"
+            } @%:@ as_fn_executable_p
               as_test_x='test -x'
-            else
+            as_executable_p=as_fn_executable_p
-              if ls -dL / >/dev/null 2>&1; then
-                as_ls_L_option=L
-              else
-                as_ls_L_option=
-              fi
-              as_test_x='
-                eval sh -c '\''
-                  if test -d "$1"; then
-            	test -d "$1/.";
-                  else
-            	case $1 in @%:@(
-            	-*)set "./$1";;
-            	esac;
-            	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in @%:@((
-            	???[sx]*):;;*)false;;esac;fi
-                '\'' sh
-            fi
-            as_executable_p=$as_test_x
             # Sed expression to map a string onto a valid CPP name.
             as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
             # values after options handling.
             ac_log="
             This file was extended by librs232 $as_me 2.1.0, which was
-            generated by GNU Autoconf 2.68.  Invocation command line was
+            generated by GNU Autoconf 2.69.  Invocation command line was
               CONFIG_FILES    = $CONFIG_FILES
               CONFIG_HEADERS  = $CONFIG_HEADERS
             ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
             ac_cs_version="\\
             librs232 config.status 2.1.0
-            configured by $0, generated by GNU Autoconf 2.68,
+            configured by $0, generated by GNU Autoconf 2.69,
               with options \\"\$ac_cs_config\\"
-            Copyright (C) 2010 Free Software Foundation, Inc.
+            Copyright (C) 2012 Free Software Foundation, Inc.
             This config.status script is free software; the Free Software Foundation
             gives unlimited permission to copy, distribute and modify it."
             _ACEOF
             cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
             if \$ac_cs_recheck; then
-              set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+              set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
               shift
               \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
               CONFIG_SHELL='$SHELL'

autom4te.cache/requests +2 0

                                     'm4_sinclude' => 1,
                                     'AM_MAINTAINER_MODE' => 1,
                                     'AM_NLS' => 1,
+                                    'AC_FC_PP_DEFINE' => 1,
                                     'AM_GNU_GETTEXT_INTL_SUBDIR' => 1,
                                     '_m4_warn' => 1,
                                     'AM_MAKEFILE_INCLUDE' => 1,
                                     'AM_PROG_FC_C_O' => 1,
                                     'AC_FC_FREEFORM' => 1,
                                     'AH_OUTPUT' => 1,
+                                    'AC_FC_PP_SRCEXT' => 1,
                                     'AC_CONFIG_AUX_DIR' => 1,
                                     '_AM_SUBST_NOTMAKE' => 1,
                                     'm4_pattern_allow' => 1,

configure +142 -137

             #! /bin/sh
             # Guess values for system-dependent variables and create Makefiles.
-            # Generated by GNU Autoconf 2.68 for librs232 2.1.0.
+            # Generated by GNU Autoconf 2.69 for librs232 2.1.0.
             #
             # Report bugs to <alexis.jeandet@lpp.polytechnique.fr>.
             #
             #
-            # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+            # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
-            # 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
-            # Foundation, Inc.
             #
             #
             # This configure script is free software; the Free Software Foundation
             # CDPATH.
             (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+            # Use a proper internal environment variable to ensure we don't fall
+              # into an infinite loop, continuously re-executing ourselves.
+              if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+                _as_can_reexec=no; export _as_can_reexec;
+                # We cannot yet assume a decent shell, so we have to provide a
+            # neutralization value for shells without unset; and this also
+            # works around shells that cannot unset nonexistent variables.
+            # Preserve -v and -x to the replacement shell.
+            BASH_ENV=/dev/null
+            ENV=/dev/null
+            (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+            case $- in # ((((
+              *v*x* | *x*v* ) as_opts=-vx ;;
+              *v* ) as_opts=-v ;;
+              *x* ) as_opts=-x ;;
+              * ) as_opts= ;;
+            esac
+            exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+            # Admittedly, this is quite paranoid, since all the known shells bail
+            # out after a failed `exec'.
+            $as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+            as_fn_exit 255
+              fi
+              # We don't want this to propagate to other subprocesses.
+                      { _as_can_reexec=; unset _as_can_reexec;}
             if test "x$CONFIG_SHELL" = x; then
               as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
               emulate sh
             else
               exitcode=1; echo positional parameters were not saved.
             fi
-            test x\$exitcode = x0 || exit 1"
+            test x\$exitcode = x0 || exit 1
+            test -x / || exit 1"
               as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
               as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
               eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
                   if test "x$CONFIG_SHELL" != x; then :
+              export CONFIG_SHELL
               # We cannot yet assume a decent shell, so we have to provide a
             	# neutralization value for shells without unset; and this also
             	# works around shells that cannot unset nonexistent variables.
             	BASH_ENV=/dev/null
             	ENV=/dev/null
             	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-            	export CONFIG_SHELL
             	case $- in # ((((
             	  *v*x* | *x*v* ) as_opts=-vx ;;
             	  *v* ) as_opts=-v ;;
             	  *x* ) as_opts=-x ;;
             	  * ) as_opts= ;;
             	esac
-            	exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
+            exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+            # Admittedly, this is quite paranoid, since all the known shells bail
+            # out after a failed `exec'.
+            $as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+            exit 255
             fi
                 if test x$as_have_required = xno; then :
             } # as_fn_mkdir_p
+            # as_fn_executable_p FILE
+            # -----------------------
+            # Test if FILE is an executable regular file.
+            as_fn_executable_p ()
+            {
+              test -f "$1" && test -x "$1"
+            } # as_fn_executable_p
             # as_fn_append VAR VALUE
             # ----------------------
             # Append the text in VALUE to the end of the definition contained in VAR. Take
               chmod +x "$as_me.lineno" ||
                 { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+              # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+              # already done that, so ensure we don't try to do so again and fall
+              # in an infinite loop.  This has already happened in practice.
+              _as_can_reexec=no; export _as_can_reexec
               # Don't try to exec as it changes $[0], causing all sort of problems
               # (the dirname of $[0] is not the place where we might find the
               # original and so on.  Autoconf is especially sensitive to this).
                 # ... but there are two gotchas:
                 # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
                 # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-                # In both cases, we have to default to `cp -p'.
+                # In both cases, we have to default to `cp -pR'.
                 ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-                  as_ln_s='cp -p'
+                  as_ln_s='cp -pR'
               elif ln conf$$.file conf$$ 2>/dev/null; then
                 as_ln_s=ln
               else
-                as_ln_s='cp -p'
+                as_ln_s='cp -pR'
               fi
             else
-              as_ln_s='cp -p'
+              as_ln_s='cp -pR'
             fi
             rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
             rmdir conf$$.dir 2>/dev/null
               as_mkdir_p=false
             fi
-            if test -x / >/dev/null 2>&1; then
               as_test_x='test -x'
-            else
+            as_executable_p=as_fn_executable_p
-              if ls -dL / >/dev/null 2>&1; then
-                as_ls_L_option=L
-              else
-                as_ls_L_option=
-              fi
-              as_test_x='
-                eval sh -c '\''
-                  if test -d "$1"; then
-            	test -d "$1/.";
-                  else
-            	case $1 in #(
-            	-*)set "./$1";;
-            	esac;
-            	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
-            	???[sx]*):;;*)false;;esac;fi
-                '\'' sh
-            fi
-            as_executable_p=$as_test_x
             # Sed expression to map a string onto a valid CPP name.
             as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
             if test "x$host_alias" != x; then
               if test "x$build_alias" = x; then
                 cross_compiling=maybe
-                $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host.
-                If a cross compiler is detected then cross compile mode will be used" >&2
               elif test "x$build_alias" != "x$host_alias"; then
                 cross_compiling=yes
               fi
             if $ac_init_version; then
               cat <<\_ACEOF
             librs232 configure 2.1.0
-            generated by GNU Autoconf 2.68
+            generated by GNU Autoconf 2.69
-            Copyright (C) 2010 Free Software Foundation, Inc.
+            Copyright (C) 2012 Free Software Foundation, Inc.
             This configure script is free software; the Free Software Foundation
             gives unlimited permission to copy, distribute and modify it.
             _ACEOF
             	 test ! -s conftest.err
                    } && test -s conftest$ac_exeext && {
             	 test "$cross_compiling" = yes ||
-            	 $as_test_x conftest$ac_exeext
+            	 test -x conftest$ac_exeext
                    }; then :
               ac_retval=0
             else
             running configure, to aid debugging if configure makes a mistake.
             It was created by librs232 $as_me 2.1.0, which was
-            generated by GNU Autoconf 2.68.  Invocation command line was
+            generated by GNU Autoconf 2.69.  Invocation command line was
               $ $0 $@
                 # by default.
                 for ac_prog in ginstall scoinst install; do
                   for ac_exec_ext in '' $ac_executable_extensions; do
-            	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
+            	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
             	  if test $ac_prog = install &&
             	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
             	    # AIX install.  It has an incompatible calling convention.
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_STRIP="${ac_tool_prefix}strip"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_STRIP="strip"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               test -z "$as_dir" && as_dir=.
                 for ac_prog in mkdir gmkdir; do
             	 for ac_exec_ext in '' $ac_executable_extensions; do
-            	   { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; } || continue
+            	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
             	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
             	     'mkdir (GNU coreutils) '* | \
             	     'mkdir (coreutils) '* | \
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_AWK="$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_CC="${ac_tool_prefix}gcc"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_CC="gcc"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_CC="${ac_tool_prefix}cc"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
                    ac_prog_rejected=yes
                    continue
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_CC="$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
             /* end confdefs.h.  */
             #include <stdarg.h>
             #include <stdio.h>
-            #include <sys/types.h>
+            struct stat;
-            #include <sys/stat.h>
             /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
             struct buf { int x; };
             FILE * (*rcsopen) (struct buf *, struct stat *, int);
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_CC="${ac_tool_prefix}gcc"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_CC="gcc"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_CC="${ac_tool_prefix}cc"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
                    ac_prog_rejected=yes
                    continue
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_CC="$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
             /* end confdefs.h.  */
             #include <stdarg.h>
             #include <stdio.h>
-            #include <sys/types.h>
+            struct stat;
-            #include <sys/stat.h>
             /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
             struct buf { int x; };
             FILE * (*rcsopen) (struct buf *, struct stat *, int);
             int
             main ()
             {
-            /* FIXME: Include the comments suggested by Paul. */
             #ifndef __cplusplus
-              /* Ultrix mips cc rejects this.  */
+              /* Ultrix mips cc rejects this sort of thing.  */
               typedef int charset[2];
-              const charset cs;
+              const charset cs = { 0, 0 };
               /* SunOS 4.1.1 cc rejects this.  */
               char const *const *pcpcc;
               char **ppc;
               ++pcpcc;
               ppc = (char**) pcpcc;
               pcpcc = (char const *const *) ppc;
-              { /* SCO 3.2v4 cc rejects this.  */
+              { /* SCO 3.2v4 cc rejects this sort of thing.  */
-                char *t;
+                char tx;
+                char *t = &tx;
                 char const *s = 0 ? (char *) 0 : (char const *) 0;
                 *t++ = 0;
                 iptr p = 0;
                 ++p;
               }
-              { /* AIX XL C 1.02.0.0 rejects this saying
+              { /* AIX XL C 1.02.0.0 rejects this sort of thing, saying
                    "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
-                struct s { int j; const int *ap[3]; };
+                struct s { int j; const int *ap[3]; } bx;
-                struct s *b; b->j = 5;
+                struct s *b = &bx; b->j = 5;
               }
               { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
                 const int foo = 10;
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_AS="${ac_tool_prefix}as"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_AS="as"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_DLLTOOL="dlltool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_OBJDUMP="objdump"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
                 for ac_prog in sed gsed; do
                 for ac_exec_ext in '' $ac_executable_extensions; do
                   ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
-                  { test -f "$ac_path_SED" && $as_test_x "$ac_path_SED"; } || continue
+                  as_fn_executable_p "$ac_path_SED" || continue
             # Check for GNU ac_path_SED and select it if it is found.
               # Check for GNU $ac_path_SED
             case `"$ac_path_SED" --version 2>&1` in
                 for ac_prog in grep ggrep; do
                 for ac_exec_ext in '' $ac_executable_extensions; do
                   ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
-                  { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+                  as_fn_executable_p "$ac_path_GREP" || continue
             # Check for GNU ac_path_GREP and select it if it is found.
               # Check for GNU $ac_path_GREP
             case `"$ac_path_GREP" --version 2>&1` in
                 for ac_prog in egrep; do
                 for ac_exec_ext in '' $ac_executable_extensions; do
                   ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-                  { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+                  as_fn_executable_p "$ac_path_EGREP" || continue
             # Check for GNU ac_path_EGREP and select it if it is found.
               # Check for GNU $ac_path_EGREP
             case `"$ac_path_EGREP" --version 2>&1` in
                 for ac_prog in fgrep; do
                 for ac_exec_ext in '' $ac_executable_extensions; do
                   ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
-                  { test -f "$ac_path_FGREP" && $as_test_x "$ac_path_FGREP"; } || continue
+                  as_fn_executable_p "$ac_path_FGREP" || continue
             # Check for GNU ac_path_FGREP and select it if it is found.
               # Check for GNU $ac_path_FGREP
             case `"$ac_path_FGREP" --version 2>&1` in
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_OBJDUMP="objdump"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_DLLTOOL="dlltool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_AR="$ac_prog"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_STRIP="${ac_tool_prefix}strip"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_STRIP="strip"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_RANLIB="ranlib"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_NMEDIT="nmedit"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_LIPO="lipo"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_OTOOL="otool"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_OTOOL64="otool64"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
               IFS=$as_save_IFS
               test -z "$as_dir" && as_dir=.
                 for ac_exec_ext in '' $ac_executable_extensions; do
-              if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+              if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
                 ac_cv_prog_ac_ct_RANLIB="ranlib"
                 $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
                 break 2
                 # ... but there are two gotchas:
                 # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
                 # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-                # In both cases, we have to default to `cp -p'.
+                # In both cases, we have to default to `cp -pR'.
                 ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-                  as_ln_s='cp -p'
+                  as_ln_s='cp -pR'
               elif ln conf$$.file conf$$ 2>/dev/null; then
                 as_ln_s=ln
               else
-                as_ln_s='cp -p'
+                as_ln_s='cp -pR'
               fi
             else
-              as_ln_s='cp -p'
+              as_ln_s='cp -pR'
             fi
             rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
             rmdir conf$$.dir 2>/dev/null
               as_mkdir_p=false
             fi
-            if test -x / >/dev/null 2>&1; then
+            # as_fn_executable_p FILE
+            # -----------------------
+            # Test if FILE is an executable regular file.
+            as_fn_executable_p ()
+            {
+              test -f "$1" && test -x "$1"
+            } # as_fn_executable_p
               as_test_x='test -x'
-            else
+            as_executable_p=as_fn_executable_p
-              if ls -dL / >/dev/null 2>&1; then
-                as_ls_L_option=L
-              else
-                as_ls_L_option=
-              fi
-              as_test_x='
-                eval sh -c '\''
-                  if test -d "$1"; then
-            	test -d "$1/.";
-                  else
-            	case $1 in #(
-            	-*)set "./$1";;
-            	esac;
-            	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
-            	???[sx]*):;;*)false;;esac;fi
-                '\'' sh
-            fi
-            as_executable_p=$as_test_x
             # Sed expression to map a string onto a valid CPP name.
             as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
             # values after options handling.
             ac_log="
             This file was extended by librs232 $as_me 2.1.0, which was
-            generated by GNU Autoconf 2.68.  Invocation command line was
+            generated by GNU Autoconf 2.69.  Invocation command line was
               CONFIG_FILES    = $CONFIG_FILES
               CONFIG_HEADERS  = $CONFIG_HEADERS
             ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
             ac_cs_version="\\
             librs232 config.status 2.1.0
-            configured by $0, generated by GNU Autoconf 2.68,
+            configured by $0, generated by GNU Autoconf 2.69,
               with options \\"\$ac_cs_config\\"
-            Copyright (C) 2010 Free Software Foundation, Inc.
+            Copyright (C) 2012 Free Software Foundation, Inc.
             This config.status script is free software; the Free Software Foundation
             gives unlimited permission to copy, distribute and modify it."
             _ACEOF
             cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
             if \$ac_cs_recheck; then
-              set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+              set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
               shift
               \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
               CONFIG_SHELL='$SHELL'

src/RS232_unix.c +13 -2

@@ -26,11 +26,22 rs232speed_t rs232cfspeed(unsigned int B
26	rs232port_t rs232open(char* psPortName)	26	rs232port_t rs232open(char* psPortName)
27	{	27	{
28	rs232port_t fd;	28	rs232port_t fd;
29	fd = (rs232port_t)open(psPortName, O_RDWR \| O_NOCTTY \| O_NDELAY);	29	int flags;
30	fcntl((int)fd, F_SETFL, FNDELAY);	30	fd = (rs232port_t)open(psPortName, O_RDWR \| O_NOCTTY );//\| O_NDELAY);
		31	//fcntl((int)fd, F_SETFL, FNDELAY);
31	//fd = open(psPortName, O_RDWR \| O_NOCTTY);	32	//fd = open(psPortName, O_RDWR \| O_NOCTTY);
32	#ifdef debug	33	#ifdef debug
33	if(fd==-1)printf("can't open Port\n");	34	if(fd==-1)printf("can't open Port\n");
		35	#else
		36	if(fd!=-1)
		37	{
		38	//flags = fcntl(fd, F_GETFL);
		39	//flags \|= O_NONBLOCK;
		40	//flags\|=FNDELAY;
		41	//fcntl(fd, F_SETFL, flags);
		42	//fcntl((int)fd, F_SETFL, FNDELAY);
		43	}
		44
34	#endif	45	#endif
35	return fd;	46	return fd;
36	}	47	}

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