forked from Mirrors/openclonk
24 lines
729 B
Plaintext
24 lines
729 B
Plaintext
dnl Copyright (C) 2009 Günther Brammer
|
|
|
|
AC_DEFUN([AX_PROG_CXX_REFTOTEMP],
|
|
[
|
|
AC_LANG_ASSERT([C++])
|
|
AC_CACHE_CHECK([wether the C++ compiler is friendly], [ax_cv_reftotemp], [
|
|
AC_COMPILE_IFELSE([
|
|
struct Foo {
|
|
operator Foo & () { return *this; }
|
|
};
|
|
#if defined(__GXX_EXPERIMENTAL_CXX0X__) || (defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
|
|
void frobnicate(Foo &&) { }
|
|
#else
|
|
void frobnicate(Foo &) { }
|
|
#endif
|
|
int main () {
|
|
frobnicate (Foo());
|
|
}
|
|
], [ax_cv_reftotemp=yes], [ax_cv_reftotemp=no])])
|
|
if test $ax_cv_reftotemp = no; then
|
|
AC_MSG_ERROR([The C++ compiler won't be able to compile Clonk. Try CXX='g++ -std=gnu++0x' or CXX='g++-4.1'.])
|
|
fi[]dnl
|
|
])# AX_PROG_CXX_REFTOTEMP
|