diff options
Diffstat (limited to 'm4/access.m4')
| -rw-r--r-- | m4/access.m4 | 55 |
1 files changed, 52 insertions, 3 deletions
diff --git a/m4/access.m4 b/m4/access.m4 index 0c8064f..c2c347f 100644 --- a/m4/access.m4 +++ b/m4/access.m4 @@ -1,5 +1,5 @@ -# access.m4 serial 1 -dnl Copyright (C) 2019-2023 Free Software Foundation, Inc. +# access.m4 serial 3 +dnl Copyright (C) 2019-2024 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. @@ -11,6 +11,55 @@ AC_DEFUN([gl_FUNC_ACCESS], dnl On native Windows, access (= _access) does not support the X_OK mode. dnl It works by chance on some versions of mingw. case "$host_os" in - mingw*) REPLACE_ACCESS=1 ;; + mingw* | windows*) + REPLACE_ACCESS=1 + ;; + *) + dnl Mac OS X 10.5 mistakenly allows access("link-to-file/",amode). + AC_CHECK_FUNCS_ONCE([lstat]) + AC_CACHE_CHECK([whether access honors trailing slash], + [gl_cv_func_access_slash_works], + [# Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + rm -rf conftest.f conftest.lnk + touch conftest.f || AC_MSG_ERROR([cannot create temporary files]) + ln -s conftest.f conftest.lnk + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ + #include <unistd.h> + ]], + [[int result = 0; + if (access ("conftest.lnk/", R_OK) == 0) + result |= 1; + return result; + ]])], + [gl_cv_func_access_slash_works=yes], + [gl_cv_func_access_slash_works=no], + dnl When crosscompiling, assume access is broken. + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_access_slash_works="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_access_slash_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_access_slash_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_access_slash_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -rf conftest.f conftest.lnk + else + gl_cv_func_access_slash_works="guessing yes" + fi + ]) + case "$gl_cv_func_access_slash_works" in + *yes) ;; + *) + REPLACE_ACCESS=1 + AC_DEFINE([ACCESS_TRAILING_SLASH_BUG], [1], + [Define if access does not correctly handle trailing slashes.]) + ;; + esac + ;; esac ]) |