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Diffstat (limited to '')
| -rw-r--r-- | m4/closedir.m4 | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/m4/closedir.m4 b/m4/closedir.m4 new file mode 100644 index 0000000..7e702de --- /dev/null +++ b/m4/closedir.m4 @@ -0,0 +1,34 @@ +# closedir.m4 serial 7 +dnl Copyright (C) 2011-2023 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. + +AC_DEFUN([gl_FUNC_CLOSEDIR], +[ + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + AC_CHECK_FUNCS([closedir]) + if test $ac_cv_func_closedir = no; then + HAVE_CLOSEDIR=0 + else + dnl Replace closedir() on native Windows, to support fdopendir(). + AC_REQUIRE([gl_DIRENT_DIR]) + if test $DIR_HAS_FD_MEMBER = 0; then + REPLACE_CLOSEDIR=1 + fi + dnl Replace closedir() for supporting the gnulib-defined dirfd() function. + case $host_os in + os2*) REPLACE_CLOSEDIR=1 ;; + esac + dnl Replace closedir() for supporting the gnulib-defined fchdir() function, + dnl to keep fchdir's bookkeeping up-to-date. + m4_ifdef([gl_FUNC_FCHDIR], [ + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + REPLACE_CLOSEDIR=1 + fi + ]) + fi +]) |