| 1 | # rmdir.m4 serial 18
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| 2 | dnl Copyright (C) 2002, 2005, 2009-2022 Free Software Foundation, Inc.
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| 3 | dnl This file is free software; the Free Software Foundation
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| 4 | dnl gives unlimited permission to copy and/or distribute it,
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| 5 | dnl with or without modifications, as long as this notice is preserved.
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| 6 |
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| 7 | AC_DEFUN([gl_FUNC_RMDIR],
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| 8 | [
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| 9 | AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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| 10 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
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| 11 | dnl Detect cygwin 1.5.x bug.
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| 12 | AC_CHECK_HEADERS_ONCE([unistd.h])
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| 13 | AC_CACHE_CHECK([whether rmdir works], [gl_cv_func_rmdir_works],
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| 14 | [mkdir conftest.dir
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| 15 | touch conftest.file
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| 16 | AC_RUN_IFELSE(
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| 17 | [AC_LANG_PROGRAM(
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| 18 | [[#include <stdio.h>
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| 19 | #include <errno.h>
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| 20 | #if HAVE_UNISTD_H
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| 21 | # include <unistd.h>
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| 22 | #else /* on Windows with MSVC */
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| 23 | # include <direct.h>
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| 24 | #endif
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| 25 | ]GL_MDA_DEFINES],
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| 26 | [[int result = 0;
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| 27 | if (!rmdir ("conftest.file/"))
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| 28 | result |= 1;
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| 29 | else if (errno != ENOTDIR)
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| 30 | result |= 2;
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| 31 | if (!rmdir ("conftest.dir/./"))
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| 32 | result |= 4;
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| 33 | return result;
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| 34 | ]])],
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| 35 | [gl_cv_func_rmdir_works=yes], [gl_cv_func_rmdir_works=no],
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| 36 | [case "$host_os" in
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| 37 | # Guess yes on Linux systems.
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| 38 | linux-* | linux) gl_cv_func_rmdir_works="guessing yes" ;;
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| 39 | # Guess yes on glibc systems.
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| 40 | *-gnu* | gnu*) gl_cv_func_rmdir_works="guessing yes" ;;
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| 41 | # Guess no on native Windows.
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| 42 | mingw*) gl_cv_func_rmdir_works="guessing no" ;;
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| 43 | # If we don't know, obey --enable-cross-guesses.
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| 44 | *) gl_cv_func_rmdir_works="$gl_cross_guess_normal" ;;
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| 45 | esac
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| 46 | ])
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| 47 | rm -rf conftest.dir conftest.file])
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| 48 | case "$gl_cv_func_rmdir_works" in
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| 49 | *yes) ;;
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| 50 | *)
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| 51 | REPLACE_RMDIR=1
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| 52 | ;;
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| 53 | esac
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| 54 | ])
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