| # glob.m4 serial 14 |
| dnl Copyright (C) 2005-2007, 2009-2016 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 glob module assumes you want GNU glob, with glob_pattern_p etc, |
| # rather than vanilla POSIX glob. This means your code should |
| # always include <glob.h> for the glob prototypes. |
| |
| AC_DEFUN([gl_GLOB], |
| [ GLOB_H= |
| AC_CHECK_HEADERS([glob.h], [], [GLOB_H=glob.h]) |
| |
| if test -z "$GLOB_H"; then |
| AC_CACHE_CHECK([for GNU glob interface version 1], |
| [gl_cv_gnu_glob_interface_version_1], |
| [ AC_COMPILE_IFELSE([AC_LANG_SOURCE( |
| [[#include <gnu-versions.h> |
| char a[_GNU_GLOB_INTERFACE_VERSION == 1 ? 1 : -1];]])], |
| [gl_cv_gnu_glob_interface_version_1=yes], |
| [gl_cv_gnu_glob_interface_version_1=no])]) |
| |
| if test "$gl_cv_gnu_glob_interface_version_1" = "no"; then |
| GLOB_H=glob.h |
| fi |
| fi |
| |
| if test -z "$GLOB_H"; then |
| AC_CACHE_CHECK([whether glob lists broken symlinks], |
| [gl_cv_glob_lists_symlinks], |
| [ if ln -s conf-doesntexist conf$$-globtest 2>/dev/null; then |
| gl_cv_glob_lists_symlinks=maybe |
| else |
| # If we can't make a symlink, then we cannot test this issue. Be |
| # pessimistic about this. |
| gl_cv_glob_lists_symlinks=no |
| fi |
| |
| if test $gl_cv_glob_lists_symlinks = maybe; then |
| AC_RUN_IFELSE([ |
| AC_LANG_PROGRAM( |
| [[#include <stddef.h> |
| #include <glob.h>]], |
| [[glob_t found; |
| if (glob ("conf*-globtest", 0, NULL, &found) == GLOB_NOMATCH) return 1;]])], |
| [gl_cv_glob_lists_symlinks=yes], |
| [gl_cv_glob_lists_symlinks=no], [gl_cv_glob_lists_symlinks=no]) |
| fi]) |
| |
| if test $gl_cv_glob_lists_symlinks = no; then |
| GLOB_H=glob.h |
| fi |
| fi |
| |
| rm -f conf$$-globtest |
| |
| AC_SUBST([GLOB_H]) |
| AM_CONDITIONAL([GL_GENERATE_GLOB_H], [test -n "$GLOB_H"]) |
| ]) |
| |
| # Prerequisites of lib/glob.*. |
| AC_DEFUN([gl_PREREQ_GLOB], |
| [ |
| AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE])dnl |
| AC_REQUIRE([AC_C_RESTRICT])dnl |
| AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])dnl |
| AC_CHECK_HEADERS_ONCE([sys/cdefs.h unistd.h])dnl |
| if test $ac_cv_header_sys_cdefs_h = yes; then |
| HAVE_SYS_CDEFS_H=1 |
| else |
| HAVE_SYS_CDEFS_H=0 |
| fi |
| AC_SUBST([HAVE_SYS_CDEFS_H]) |
| AC_CHECK_FUNCS_ONCE([fstatat getlogin_r getpwnam_r])dnl |
| ]) |