diff options
Diffstat (limited to 'm4/dirfd.m4')
| -rw-r--r-- | m4/dirfd.m4 | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/m4/dirfd.m4 b/m4/dirfd.m4 index 9e26d5210..c377b87a3 100644 --- a/m4/dirfd.m4 +++ b/m4/dirfd.m4 @@ -1,4 +1,4 @@ -#serial 12 -*- Autoconf -*- +#serial 13 -*- Autoconf -*- dnl Find out how to get the file descriptor associated with an open DIR*. @@ -17,22 +17,16 @@ AC_DEFUN([gl_FUNC_DIRFD], 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_HEADERS_ONCE([dirent.h])dnl - - dirfd_headers=' -#if HAVE_DIRENT_H -# include <dirent.h> -#else -# define dirent direct -# include <ndir.h> -#endif -' AC_CHECK_FUNCS(dirfd) - AC_CHECK_DECLS([dirfd], , , $dirfd_headers) + AC_CHECK_DECLS([dirfd], , , + [#include <sys/types.h> + #include <dirent.h>]) AC_CACHE_CHECK([whether dirfd is a macro], gl_cv_func_dirfd_macro, - [AC_EGREP_CPP([dirent_header_defines_dirfd], [$dirfd_headers + [AC_EGREP_CPP([dirent_header_defines_dirfd], [ +#include <sys/types.h> +#include <dirent.h> #ifdef dirfd dirent_header_defines_dirfd #endif], @@ -53,8 +47,8 @@ AC_DEFUN([gl_FUNC_DIRFD], CFLAGS="$CFLAGS -DDIR_FD_MEMBER_NAME=$ac_expr" AC_TRY_COMPILE( - [$dirfd_headers - ], + [#include <sys/types.h> + #include <dirent.h>], [DIR *dir_p = opendir("."); (void) dir_p->DIR_FD_MEMBER_NAME;], dir_fd_found=yes ) |