2012-05-05 Bruno Haible <bruno@clisp.org>
+ canonicalize[-lgpl]: Avoid "guessing no" when cross-compiling to glibc.
+ * m4/canonicalize.m4 (gl_FUNC_REALPATH_WORKS): Require
+ AC_CANONICAL_HOST. When cross-compiling to a glibc system, set
+ gl_cv_func_realpath_works to "guessing yes".
+
+2012-05-05 Bruno Haible <bruno@clisp.org>
+
gettimeofday: Avoid bad guess when cross-compiling to glibc systems.
* m4/gettimeofday.m4 (gl_FUNC_GETTIMEOFDAY_CLOBBER): Require
AC_CANONICAL_HOST. When cross-compiling, guess no on glibc platforms.
-# canonicalize.m4 serial 23
+# canonicalize.m4 serial 24
dnl Copyright (C) 2003-2007, 2009-2012 Free Software Foundation, Inc.
AC_DEFUN([gl_FUNC_REALPATH_WORKS],
[
AC_CHECK_FUNCS_ONCE([realpath])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether realpath works], [gl_cv_func_realpath_works], [
touch conftest.a
mkdir conftest.d
}
return result;
]])
- ], [gl_cv_func_realpath_works=yes], [gl_cv_func_realpath_works=no],
- [gl_cv_func_realpath_works="guessing no"])
+ ],
+ [gl_cv_func_realpath_works=yes],
+ [gl_cv_func_realpath_works=no],
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_realpath_works="guessing yes" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_realpath_works="guessing no" ;;
+ esac
+ ])
rm -rf conftest.a conftest.d
])
- if test "$gl_cv_func_realpath_works" = yes; then
- AC_DEFINE([FUNC_REALPATH_WORKS], [1], [Define to 1 if realpath()
- can malloc memory, always gives an absolute path, and handles
- trailing slash correctly.])
- fi
+ case "$gl_cv_func_realpath_works" in
+ *yes)
+ AC_DEFINE([FUNC_REALPATH_WORKS], [1], [Define to 1 if realpath()
+ can malloc memory, always gives an absolute path, and handles
+ trailing slash correctly.])
+ ;;
+ esac
])