mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
8e633294c2
AC_CONFIG_HEADERS. This should prevent LLVM from needlessly re-compiling on a re-configure. llvm-svn: 16510
23 lines
761 B
Plaintext
23 lines
761 B
Plaintext
# Check for forward iterator extension. This is modified from
|
|
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html
|
|
AC_DEFUN([AC_CXX_HAVE_FWD_ITERATOR],
|
|
[AC_CACHE_CHECK(whether the compiler has forward iterators,
|
|
ac_cv_cxx_have_fwd_iterator,
|
|
[AC_REQUIRE([AC_CXX_NAMESPACES])
|
|
AC_LANG_PUSH([C++])
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <iterator>
|
|
#ifdef HAVE_NAMESPACES
|
|
using namespace std;
|
|
#endif]], [[forward_iterator<int,int> t; return 0;]])],[ac_cv_cxx_have_fwd_iterator=yes],[ac_cv_cxx_have_fwd_iterator=no])
|
|
AC_LANG_POP([C++])
|
|
])
|
|
if test "$ac_cv_cxx_have_fwd_iterator" = yes
|
|
then
|
|
AC_DEFINE(HAVE_FWD_ITERATOR,1,[Have forward iterator])
|
|
else
|
|
AC_DEFINE(HAVE_FWD_ITERATOR,0,[Does not have forward iterator])
|
|
fi
|
|
])
|
|
|
|
|