| # getopt.m4 serial 13 |
| dnl Copyright (C) 2002, 2003, 2004, 2005, 2006 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. |
| |
| # The getopt module assume you want GNU getopt, with getopt_long etc, |
| # rather than vanilla POSIX getopt. This means 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], |
| [ |
| 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], |
| [ |
| AC_CHECK_DECLS_ONCE([getenv]) |
| ]) |