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-rw-r--r--m4/rmdir.m454
1 files changed, 54 insertions, 0 deletions
diff --git a/m4/rmdir.m4 b/m4/rmdir.m4
new file mode 100644
index 0000000..5488027
--- /dev/null
+++ b/m4/rmdir.m4
@@ -0,0 +1,54 @@
+# rmdir.m4 serial 18
+dnl Copyright (C) 2002, 2005, 2009-2022 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_RMDIR],
+[
+ AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ dnl Detect cygwin 1.5.x bug.
+ AC_CHECK_HEADERS_ONCE([unistd.h])
+ AC_CACHE_CHECK([whether rmdir works], [gl_cv_func_rmdir_works],
+ [mkdir conftest.dir
+ touch conftest.file
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <stdio.h>
+ #include <errno.h>
+ #if HAVE_UNISTD_H
+ # include <unistd.h>
+ #else /* on Windows with MSVC */
+ # include <direct.h>
+ #endif
+ ]GL_MDA_DEFINES],
+ [[int result = 0;
+ if (!rmdir ("conftest.file/"))
+ result |= 1;
+ else if (errno != ENOTDIR)
+ result |= 2;
+ if (!rmdir ("conftest.dir/./"))
+ result |= 4;
+ return result;
+ ]])],
+ [gl_cv_func_rmdir_works=yes], [gl_cv_func_rmdir_works=no],
+ [case "$host_os" in
+ # Guess yes on Linux systems.
+ linux-* | linux) gl_cv_func_rmdir_works="guessing yes" ;;
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_rmdir_works="guessing yes" ;;
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_rmdir_works="guessing no" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_rmdir_works="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ rm -rf conftest.dir conftest.file])
+ case "$gl_cv_func_rmdir_works" in
+ *yes) ;;
+ *)
+ REPLACE_RMDIR=1
+ ;;
+ esac
+])