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62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
# fopen.m4 serial 5
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dnl Copyright (C) 2007-2009 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_FOPEN],
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[
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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AC_REQUIRE([AC_CANONICAL_HOST])
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case "$host_os" in
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mingw* | pw*)
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dnl Replace fopen, for handling of "/dev/null".
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REPLACE_FOPEN=1
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dnl fopen on mingw also has the trailing slash bug.
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gl_cv_func_fopen_slash="guessing no"
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;;
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*)
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dnl fopen("foo/", "w") should not create a file when the file name has a
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dnl trailing slash.
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AC_CACHE_CHECK([whether fopen recognizes a trailing slash],
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[gl_cv_func_fopen_slash],
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[
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AC_TRY_RUN([
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#include <stddef.h>
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#include <stdio.h>
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int main ()
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{
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return fopen ("conftest.sl/", "w") != NULL;
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}], [gl_cv_func_fopen_slash=yes], [gl_cv_func_fopen_slash=no],
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[
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changequote(,)dnl
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case "$host_os" in
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solaris2.[0-9]*) gl_cv_func_fopen_slash="guessing no" ;;
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hpux*) gl_cv_func_fopen_slash="guessing no" ;;
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*) gl_cv_func_fopen_slash="guessing yes" ;;
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esac
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changequote([,])dnl
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])
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rm -f conftest.sl
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])
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;;
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esac
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case "$gl_cv_func_fopen_slash" in
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*no)
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AC_DEFINE([FOPEN_TRAILING_SLASH_BUG], [1],
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[Define to 1 if fopen() fails to recognize a trailing slash.])
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REPLACE_FOPEN=1
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;;
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esac
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if test $REPLACE_FOPEN = 1; then
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AC_LIBOBJ([fopen])
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gl_PREREQ_FOPEN
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fi
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])
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# Prerequisites of lib/fopen.c.
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AC_DEFUN([gl_PREREQ_FOPEN],
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[
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AC_REQUIRE([AC_C_INLINE])
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])
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