From 8c76c35458cbfcb04a338c29c2e10a85b88f202f Mon Sep 17 00:00:00 2001 From: Michael Gernoth Date: Sun, 8 Aug 2004 11:17:12 +0000 Subject: [PATCH] fix dirfd stuff git-svn-id: svn://svn.code.sf.net/p/rdesktop/code/trunk/rdesktop@742 423420c4-83ab-492f-b58f-81f9feb106b5 --- configure.ac | 78 +++++++++++++++++++++++++++++++++++++++++++++++++ dirfd.m4 | 82 ---------------------------------------------------- 2 files changed, 78 insertions(+), 82 deletions(-) delete mode 100644 dirfd.m4 diff --git a/configure.ac b/configure.ac index eabceac..0ab065a 100644 --- a/configure.ac +++ b/configure.ac @@ -157,6 +157,84 @@ AC_SUBST(SOUNDOBJ) # # dirfd # +dnl Find out how to get the file descriptor associated with an open DIR*. +dnl From Jim Meyering + +AC_DEFUN([UTILS_FUNC_DIRFD], +[ + + AC_HEADER_DIRENT + dirfd_headers=' +#if HAVE_DIRENT_H +# include +#else /* not HAVE_DIRENT_H */ +# define dirent direct +# if HAVE_SYS_NDIR_H +# include +# endif /* HAVE_SYS_NDIR_H */ +# if HAVE_SYS_DIR_H +# include +# endif /* HAVE_SYS_DIR_H */ +# if HAVE_NDIR_H +# include +# endif /* HAVE_NDIR_H */ +#endif /* HAVE_DIRENT_H */ +' + AC_CHECK_FUNCS(dirfd) + AC_CHECK_DECLS([dirfd], , , $dirfd_headers) + + AC_CACHE_CHECK([whether dirfd is a macro], + jm_cv_func_dirfd_macro, + [AC_EGREP_CPP([dirent_header_defines_dirfd], [$dirfd_headers +#ifdef dirfd + dirent_header_defines_dirfd +#endif], + jm_cv_func_dirfd_macro=yes, + jm_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,$jm_cv_func_dirfd_macro \ + = no,no,no; then + AC_REPLACE_FUNCS([dirfd]) + AC_CACHE_CHECK( + [how to get the file descriptor associated with an open DIR*], + gl_cv_sys_dir_fd_member_name, + [ + dirfd_save_CFLAGS=$CFLAGS + for ac_expr in d_fd dd_fd; do + + CFLAGS="$CFLAGS -DDIR_FD_MEMBER_NAME=$ac_expr" + AC_TRY_COMPILE( + [$dirfd_headers + ], + [DIR *dir_p = opendir("."); (void) dir_p->DIR_FD_MEMBER_NAME;], + dir_fd_found=yes + ) + CFLAGS=$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 +]) + UTILS_FUNC_DIRFD # diff --git a/dirfd.m4 b/dirfd.m4 deleted file mode 100644 index a13299f..0000000 --- a/dirfd.m4 +++ /dev/null @@ -1,82 +0,0 @@ -#serial 6 - -dnl Find out how to get the file descriptor associated with an open DIR*. -dnl From Jim Meyering - -AC_DEFUN([UTILS_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_HEADER_DIRENT - dirfd_headers=' -#if HAVE_DIRENT_H -# include -#else /* not HAVE_DIRENT_H */ -# define dirent direct -# if HAVE_SYS_NDIR_H -# include -# endif /* HAVE_SYS_NDIR_H */ -# if HAVE_SYS_DIR_H -# include -# endif /* HAVE_SYS_DIR_H */ -# if HAVE_NDIR_H -# include -# endif /* HAVE_NDIR_H */ -#endif /* HAVE_DIRENT_H */ -' - AC_CHECK_FUNCS(dirfd) - AC_CHECK_DECLS([dirfd], , , $dirfd_headers) - - AC_CACHE_CHECK([whether dirfd is a macro], - jm_cv_func_dirfd_macro, - [AC_EGREP_CPP([dirent_header_defines_dirfd], [$dirfd_headers -#ifdef dirfd - dirent_header_defines_dirfd -#endif], - jm_cv_func_dirfd_macro=yes, - jm_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,$jm_cv_func_dirfd_macro \ - = no,no,no; then - AC_REPLACE_FUNCS([dirfd]) - AC_CACHE_CHECK( - [how to get the file descriptor associated with an open DIR*], - gl_cv_sys_dir_fd_member_name, - [ - dirfd_save_CFLAGS=$CFLAGS - for ac_expr in d_fd dd_fd; do - - CFLAGS="$CFLAGS -DDIR_FD_MEMBER_NAME=$ac_expr" - AC_TRY_COMPILE( - [$dirfd_headers - ], - [DIR *dir_p = opendir("."); (void) dir_p->DIR_FD_MEMBER_NAME;], - dir_fd_found=yes - ) - CFLAGS=$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 -])