diff options
Diffstat (limited to 'gnulib-m4/dirfd.m4')
| -rw-r--r-- | gnulib-m4/dirfd.m4 | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/gnulib-m4/dirfd.m4 b/gnulib-m4/dirfd.m4 deleted file mode 100644 index 605cb706..00000000 --- a/gnulib-m4/dirfd.m4 +++ /dev/null @@ -1,88 +0,0 @@ -# dirfd.m4 -# serial 30 -*- Autoconf -*- -dnl Copyright (C) 2001-2006, 2008-2024 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. - -dnl Find out how to get the file descriptor associated with an open DIR*. - -dnl From Jim Meyering - -AC_DEFUN([gl_FUNC_DIRFD], -[ - AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) - AC_REQUIRE([AC_CANONICAL_HOST]) - - dnl Persuade glibc <dirent.h> to declare dirfd(). - AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) - - AC_CHECK_FUNCS([dirfd]) - AC_CHECK_DECLS([dirfd], , , - [[#include <sys/types.h> - #include <dirent.h>]]) - if test $ac_cv_have_decl_dirfd = no; then - HAVE_DECL_DIRFD=0 - fi - - 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])]) - - if test $ac_cv_func_dirfd = no && test $gl_cv_func_dirfd_macro = no; then - HAVE_DIRFD=0 - else - HAVE_DIRFD=1 - dnl Replace dirfd() on native Windows and OS/2 kLIBC, - dnl to support fdopendir(). - AC_REQUIRE([gl_DIRENT_DIR]) - if test $DIR_HAS_FD_MEMBER = 0; then - REPLACE_DIRFD=1 - fi - fi -]) - -dnl Prerequisites of lib/dirfd.c. -AC_DEFUN([gl_PREREQ_DIRFD], -[ - AC_CACHE_CHECK([how to get the file descriptor associated with an open DIR*], - [gl_cv_sys_dir_fd_member_name], - [ - gl_saved_CFLAGS=$CFLAGS - for ac_expr in d_fd dd_fd; do - - CFLAGS="$CFLAGS -DDIR_FD_MEMBER_NAME=$ac_expr" - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ - #include <sys/types.h> - #include <dirent.h>]], - [[DIR *dir_p = opendir("."); (void) dir_p->DIR_FD_MEMBER_NAME;]])], - [dir_fd_found=yes] - ) - CFLAGS=$gl_saved_CFLAGS - test "$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 -]) -]) |
