+ GETOPT_H=
+ AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
+ 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