# with or without modifications, as long as this notice is preserved.
# Written by Paul Eggert.
-# serial 5
+# serial 8
AC_DEFUN([gl_FUNC_GETCWD_NULL],
[
# endif
]], [[
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-/* mingw cwd does not start with '/', but getcwd does allocate. */
+/* mingw cwd does not start with '/', but getcwd does allocate.
+ However, mingw fails to honor non-zero size. */
#else
if (chdir ("/") != 0)
return 1;
*-gnu*) gl_cv_func_getcwd_null="guessing yes";;
# Guess yes on Cygwin.
cygwin*) gl_cv_func_getcwd_null="guessing yes";;
- # Guess yes on mingw.
- mingw*) gl_cv_func_getcwd_null="guessing yes";;
# If we don't know, assume the worst.
*) gl_cv_func_getcwd_null="guessing no";;
esac
]])])
])
+AC_DEFUN([gl_FUNC_GETCWD_SIGNATURE],
+[
+ AC_CACHE_CHECK([for getcwd with POSIX signature],
+ [gl_cv_func_getcwd_posix_signature],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <unistd.h>]],
+ [[extern
+ #ifdef __cplusplus
+ "C"
+ #endif
+ char *getcwd (char *, size_t);
+ ]])
+ ],
+ [gl_cv_func_getcwd_posix_signature=yes],
+ [gl_cv_func_getcwd_posix_signature=no])
+ ])
+])
dnl Guarantee that getcwd will malloc with a NULL first argument. Assumes
dnl that either the system getcwd is robust, or that calling code is okay
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
AC_REQUIRE([gl_FUNC_GETCWD_NULL])
+ AC_REQUIRE([gl_FUNC_GETCWD_SIGNATURE])
- case $gl_cv_func_getcwd_null in
- *yes) ;;
+ case $gl_cv_func_getcwd_null,$gl_cv_func_getcwd_posix_signature in
+ *yes,yes) ;;
*)
- dnl Minimal replacement
+ dnl Minimal replacement lib/getcwd-lgpl.c.
REPLACE_GETCWD=1
- AC_LIBOBJ([getcwd-lgpl])
;;
esac
])
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
AC_REQUIRE([gl_FUNC_GETCWD_NULL])
+ AC_REQUIRE([gl_FUNC_GETCWD_SIGNATURE])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
gl_abort_bug=no
gl_FUNC_GETCWD_ABORT_BUG([gl_abort_bug=yes]);;
esac
- case $gl_cv_func_getcwd_null,$gl_cv_func_getcwd_path_max,$gl_abort_bug in
- *yes,yes,no) ;;
+ case $gl_cv_func_getcwd_null,$gl_cv_func_getcwd_posix_signature$gl_cv_func_getcwd_path_max,$gl_abort_bug in
+ *yes,yes,yes,no) ;;
*)
- dnl Full replacement, overrides LGPL replacement.
- REPLACE_GETCWD=1
- AC_LIBOBJ([getcwd])
- gl_PREREQ_GETCWD;;
+ dnl Full replacement lib/getcwd.c, overrides LGPL replacement.
+ REPLACE_GETCWD=1;;
esac
])