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author | Lorry Tar Creator <lorry-tar-importer@baserock.org> | 2013-09-22 07:04:10 +0000 |
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committer | <> | 2015-02-02 12:02:31 +0000 |
commit | 23c11479b3ad787adc7a651ee0c4347839e47723 (patch) | |
tree | 3aa9e1125da84f7e3bd764bbff577c42a766508b /m4/fopen.m4 | |
download | m4-tarball-master.tar.gz |
Diffstat (limited to 'm4/fopen.m4')
-rw-r--r-- | m4/fopen.m4 | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/m4/fopen.m4 b/m4/fopen.m4 new file mode 100644 index 0000000..3337cc9 --- /dev/null +++ b/m4/fopen.m4 @@ -0,0 +1,58 @@ +# fopen.m4 serial 9 +dnl Copyright (C) 2007-2013 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_FOPEN], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw* | pw*) + dnl Replace fopen, for handling of "/dev/null". + REPLACE_FOPEN=1 + dnl fopen on mingw also has the trailing slash bug. + gl_cv_func_fopen_slash="guessing no" + ;; + *) + dnl fopen("foo/", "w") should not create a file when the file name has a + dnl trailing slash. + AC_CACHE_CHECK([whether fopen recognizes a trailing slash], + [gl_cv_func_fopen_slash], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stddef.h> +#include <stdio.h> +int main () +{ + return fopen ("conftest.sl/", "w") != NULL; +}]])], + [gl_cv_func_fopen_slash=yes], + [gl_cv_func_fopen_slash=no], + [ +changequote(,)dnl + case "$host_os" in + aix* | hpux* | solaris2.[0-9] | solaris2.[0-9].*) + gl_cv_func_fopen_slash="guessing no" ;; + *) + gl_cv_func_fopen_slash="guessing yes" ;; + esac +changequote([,])dnl + ]) + rm -f conftest.sl + ]) + ;; + esac + case "$gl_cv_func_fopen_slash" in + *no) + AC_DEFINE([FOPEN_TRAILING_SLASH_BUG], [1], + [Define to 1 if fopen() fails to recognize a trailing slash.]) + REPLACE_FOPEN=1 + ;; + esac +]) + +# Prerequisites of lib/fopen.c. +AC_DEFUN([gl_PREREQ_FOPEN], [:]) |