diff options
Diffstat (limited to 'm4/dirfd.m4')
| -rw-r--r-- | m4/dirfd.m4 | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/m4/dirfd.m4 b/m4/dirfd.m4 deleted file mode 100644 index c377b87a3..000000000 --- a/m4/dirfd.m4 +++ /dev/null @@ -1,76 +0,0 @@ -#serial 13 -*- Autoconf -*- - -dnl Find out how to get the file descriptor associated with an open DIR*. - -# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software -# Foundation, Inc. -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -dnl From Jim Meyering - -AC_DEFUN([gl_FUNC_DIRFD], -[ - AC_LIBSOURCES([dirfd.c, dirfd.h]) - - dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57. - AC_REQUIRE([AC_PROG_CPP]) - AC_REQUIRE([AC_PROG_EGREP]) - AC_CHECK_FUNCS(dirfd) - AC_CHECK_DECLS([dirfd], , , - [#include <sys/types.h> - #include <dirent.h>]) - - AC_CACHE_CHECK([whether dirfd is a macro], - gl_cv_func_dirfd_macro, - [AC_EGREP_CPP([dirent_header_defines_dirfd], [ -#include <sys/types.h> -#include <dirent.h> -#ifdef dirfd - dirent_header_defines_dirfd -#endif], - gl_cv_func_dirfd_macro=yes, - gl_cv_func_dirfd_macro=no)]) - - # Use the replacement only if we have no function, macro, - # or declaration with that name. - if test $ac_cv_func_dirfd,$ac_cv_have_decl_dirfd,$gl_cv_func_dirfd_macro \ - = no,no,no; then - AC_REPLACE_FUNCS([dirfd]) - AC_CACHE_CHECK( - [how to get the file descriptor associated with an open DIR*], - gl_cv_sys_dir_fd_member_name, - [ - dirfd_save_CFLAGS=$CFLAGS - for ac_expr in d_fd dd_fd; do - - CFLAGS="$CFLAGS -DDIR_FD_MEMBER_NAME=$ac_expr" - AC_TRY_COMPILE( - [#include <sys/types.h> - #include <dirent.h>], - [DIR *dir_p = opendir("."); (void) dir_p->DIR_FD_MEMBER_NAME;], - dir_fd_found=yes - ) - CFLAGS=$dirfd_save_CFLAGS - test "$dir_fd_found" = yes && break - done - test "$dir_fd_found" = yes || ac_expr=no_such_member - - gl_cv_sys_dir_fd_member_name=$ac_expr - ] - ) - if test $gl_cv_sys_dir_fd_member_name != no_such_member; then - AC_DEFINE_UNQUOTED(DIR_FD_MEMBER_NAME, - $gl_cv_sys_dir_fd_member_name, - [the name of the file descriptor member of DIR]) - fi - AH_VERBATIM(DIR_TO_FD, - [#ifdef DIR_FD_MEMBER_NAME -# define DIR_TO_FD(Dir_p) ((Dir_p)->DIR_FD_MEMBER_NAME) -#else -# define DIR_TO_FD(Dir_p) -1 -#endif -]) - fi -]) |