diff options
Diffstat (limited to 'm4/getopt.m4')
| -rw-r--r-- | m4/getopt.m4 | 87 |
1 files changed, 77 insertions, 10 deletions
diff --git a/m4/getopt.m4 b/m4/getopt.m4 index df602b98..6b98782c 100644 --- a/m4/getopt.m4 +++ b/m4/getopt.m4 @@ -1,13 +1,80 @@ -# getopt.m4 serial 2 -dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc. -dnl This file is free software, distributed under the terms of the GNU -dnl General Public License. As a special exception to the GNU General -dnl Public License, this file may be distributed as part of a program -dnl that contains a configuration script generated by Autoconf, under -dnl the same distribution terms as the rest of that program. +# getopt.m4 serial 11 +dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. -AC_DEFUN([gl_GETOPT], +# The getopt module assume you want GNU getopt, with getopt_long etc, +# rather than vanilla POSIX getopt. This means your your code should +# always include <getopt.h> for the getopt prototypes. + +AC_DEFUN([gl_GETOPT_SUBSTITUTE], +[ + AC_LIBOBJ([getopt]) + AC_LIBOBJ([getopt1]) + gl_GETOPT_SUBSTITUTE_HEADER + gl_PREREQ_GETOPT +]) + +AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER], [ - dnl Prerequisites of lib/getopt.c. - : + GETOPT_H=getopt.h + AC_DEFINE([__GETOPT_PREFIX], [[rpl_]], + [Define to rpl_ if the getopt replacement functions and variables + should be used.]) + AC_SUBST([GETOPT_H]) ]) + +AC_DEFUN([gl_GETOPT_CHECK_HEADERS], +[ + if test -z "$GETOPT_H"; then + AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h]) + fi + + if test -z "$GETOPT_H"; then + AC_CHECK_FUNCS([getopt_long_only], [], [GETOPT_H=getopt.h]) + fi + + dnl BSD getopt_long uses an incompatible method to reset option processing, + dnl and (as of 2004-10-15) mishandles optional option-arguments. + if test -z "$GETOPT_H"; then + AC_CHECK_DECL([optreset], [GETOPT_H=getopt.h], [], [#include <getopt.h>]) + fi + + dnl Solaris 10 getopt doesn't handle `+' as a leading character in an + dnl option string (as of 2005-05-05). + if test -z "$GETOPT_H"; then + AC_CACHE_CHECK([for working GNU getopt function], [gl_cv_func_gnu_getopt], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([#include <getopt.h>], + [[ + char *myargv[3]; + myargv[0] = "conftest"; + myargv[1] = "-+"; + myargv[2] = 0; + return getopt (2, myargv, "+a") != '?'; + ]])], + [gl_cv_func_gnu_getopt=yes], + [gl_cv_func_gnu_getopt=no], + [dnl cross compiling - pessimistically guess based on decls + dnl Solaris 10 getopt doesn't handle `+' as a leading character in an + dnl option string (as of 2005-05-05). + AC_CHECK_DECL([getopt_clip], + [gl_cv_func_gnu_getopt=no], [gl_cv_func_gnu_getopt=yes], + [#include <getopt.h>])])]) + if test "$gl_cv_func_gnu_getopt" = "no"; then + GETOPT_H=getopt.h + fi + fi +]) + +AC_DEFUN([gl_GETOPT_IFELSE], +[ + AC_REQUIRE([gl_GETOPT_CHECK_HEADERS]) + AS_IF([test -n "$GETOPT_H"], [$1], [$2]) +]) + +AC_DEFUN([gl_GETOPT], [gl_GETOPT_IFELSE([gl_GETOPT_SUBSTITUTE])]) + +# Prerequisites of lib/getopt*. +AC_DEFUN([gl_PREREQ_GETOPT], [:]) |