Unix makefiles

[shibboleth/xmltooling.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644 (file)
index 0000000..f758e35
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,46 @@
+dnl @synopsis AC_CXX_NAMESPACES\r
+dnl\r
+dnl If the compiler can prevent names clashes using namespaces, define\r
+dnl HAVE_NAMESPACES.\r
+dnl\r
+dnl @author Luc Maisonobe\r
+dnl\r
+AC_DEFUN([AC_CXX_NAMESPACES],\r
+[AC_CACHE_CHECK(whether the compiler implements namespaces,\r
+ac_cv_cxx_namespaces,\r
+[AC_LANG_SAVE\r
+ AC_LANG_CPLUSPLUS\r
+ AC_TRY_COMPILE([namespace Outer { namespace Inner { int i = 0; }}],\r
+                [using namespace Outer::Inner; return i;],\r
+ ac_cv_cxx_namespaces=yes, ac_cv_cxx_namespaces=no)\r
+ AC_LANG_RESTORE\r
+])\r
+if test "$ac_cv_cxx_namespaces" = yes; then\r
+  AC_DEFINE(HAVE_NAMESPACES,1,[define if the compiler implements namespaces])\r
+fi\r
+])\r
+\r
+\r
+dnl\r
+dnl @author Luc Maisonobe\r
+dnl\r
+AC_DEFUN([AC_CXX_REQUIRE_STL],\r
+[AC_CACHE_CHECK(whether the compiler supports Standard Template Library,\r
+ac_cv_cxx_have_stl,\r
+[AC_REQUIRE([AC_CXX_NAMESPACES])\r
+ AC_LANG_SAVE\r
+ AC_LANG_CPLUSPLUS\r
+ AC_TRY_COMPILE([#include <list>\r
+#include <deque>\r
+#ifdef HAVE_NAMESPACES\r
+using namespace std;\r
+#endif],[list<int> x; x.push_back(5);\r
+list<int>::iterator iter = x.begin(); if (iter != x.end()) ++iter; return 0;],\r
+ ac_cv_cxx_have_stl=yes, ac_cv_cxx_have_stl=no)\r
+ AC_LANG_RESTORE\r
+])\r
+if test "x_$ac_cv_cxx_have_stl" != x_yes; then\r
+  AC_MSG_ERROR([C++ Standard Template Libary unsupported])\r
+fi\r
+])\r
+\r