Start revisions of autotools material.

[shibboleth/cpp-opensaml.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
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index ad38341..0000000
--- a/acinclude.m4
+++ /dev/null
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-dnl @synopsis AC_CXX_NAMESPACES
-dnl
-dnl If the compiler can prevent names clashes using namespaces, define
-dnl HAVE_NAMESPACES.
-dnl
-dnl @author Luc Maisonobe
-dnl
-AC_DEFUN([AC_CXX_NAMESPACES],
-[AC_CACHE_CHECK(whether the compiler implements namespaces,
-ac_cv_cxx_namespaces,
-[AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([namespace Outer { namespace Inner { int i = 0; }}],
-                [using namespace Outer::Inner; return i;],
- ac_cv_cxx_namespaces=yes, ac_cv_cxx_namespaces=no)
- AC_LANG_RESTORE
-])
-if test "$ac_cv_cxx_namespaces" = yes; then
-  AC_DEFINE(HAVE_NAMESPACES,1,[define if the compiler implements namespaces])
-fi
-])
-
-
-dnl
-dnl @author Luc Maisonobe
-dnl
-AC_DEFUN([AC_CXX_REQUIRE_STL],
-[AC_CACHE_CHECK(whether the compiler supports Standard Template Library,
-ac_cv_cxx_have_stl,
-[AC_REQUIRE([AC_CXX_NAMESPACES])
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <list>
-#include <deque>
-#ifdef HAVE_NAMESPACES
-using namespace std;
-#endif],[list<int> x; x.push_back(5);
-list<int>::iterator iter = x.begin(); if (iter != x.end()) ++iter; return 0;],
- ac_cv_cxx_have_stl=yes, ac_cv_cxx_have_stl=no)
- AC_LANG_RESTORE
-])
-if test "x_$ac_cv_cxx_have_stl" != x_yes; then
-  AC_MSG_ERROR([C++ Standard Template Libary unsupported])
-fi
-])
-
-dnl Determine whether we have gcc of a particular version or later,
-dnl based on major, minor, patchlevel versions and date.
-dnl AC_HAVE_GCC_VERSION(MAJOR_VERSION, MINOR_VERSION, PATCH_LEVEL, 
-dnl    SNAPSHOT_DATE [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
-AC_DEFUN(AC_HAVE_GCC_VERSION,
-[AC_CACHE_CHECK([gcc is at least version $1.$2.$3.$4],
-          ac_cv_gcc_version_$1_$2_$3_$4,
-[
-  if test x$GCC = x ; then ac_cv_gcc_version_$1_$2_$3_$4=no
-  else 
-    ac_gcc_date=`$CC -v 2>&1 | grep '^gcc version ' | sed 's/ (.*//; s/.* //'`
-    if test 0$ac_gcc_date -eq 0 ; then ac_gcc_date=0 ; fi
-    AC_EGREP_CPP(yes, [#define HAVE_GCC_VERSION(MAJOR, MINOR, MICRO, DATE) \
-    (__GNUC__ > (MAJOR) \
-     || (__GNUC__ == (MAJOR) && __GNUC_MINOR__ > (MINOR)) \
-     || (__GNUC__ == (MAJOR) && __GNUC_MINOR__ == (MINOR) \
-         && __GNUC_PATCHLEVEL__ > (MICRO)) \
-     || (__GNUC__ == (MAJOR) && __GNUC_MINOR__ == (MINOR) \
-         && __GNUC_PATCHLEVEL__ == (MICRO) && ${ac_gcc_date}L >= (DATE)))
-#if HAVE_GCC_VERSION($1,$2,$3,$4)
-yes
-#endif],
-   AC_DEFINE_UNQUOTED(HAVE_GCC_VERSION_$1_$2_$3_$4, 1,
-     [Define to 1 if we have gcc $1.$2.$3 ($4)])
-   ac_cv_gcc_version_$1_$2_$3_$4=yes ; $5,
-   ac_cv_gcc_version_$1_$2_$3_$4=no ; $6)
-fi
-])])dnl