From 02e76bdf89bf11934a8c47a9c2d67dc67952b73b Mon Sep 17 00:00:00 2001
From: Brian Aker <brian@tangent.org>
Date: Tue, 27 Nov 2012 06:39:25 -0500
Subject: [PATCH] Updating m4

---
 m4/ax_check_library.m4        | 55 +++++++++++++++++------------------
 m4/ax_cxx_gcc_abi_demangle.m4 | 48 +++++++++++++-----------------
 2 files changed, 47 insertions(+), 56 deletions(-)

diff --git a/m4/ax_check_library.m4 b/m4/ax_check_library.m4
index 8177acf0..f8d7962f 100644
--- a/m4/ax_check_library.m4
+++ b/m4/ax_check_library.m4
@@ -32,6 +32,7 @@
 #
 # LICENSE
 #
+#   Copyright (c) 2012 Brian Aker <brian@tangent.org>
 #   Copyright (c) 2010 Diego Elio Petteno` <flameeyes@gmail.com>
 #
 #   This program is free software: you can redistribute it and/or modify it
@@ -62,38 +63,34 @@
 
 #serial 6
 
-AC_DEFUN([AX_CHECK_LIBRARY], [
-  AC_ARG_VAR($1[_CPPFLAGS], [C preprocessor flags for ]$1[ headers])
-  AC_ARG_VAR($1[_LDFLAGS], [linker flags for ]$1[ libraries])
+AC_DEFUN([AX_CHECK_LIBRARY],
+    [AC_ARG_VAR($1[_CPPFLAGS],[C preprocessor flags for ]$1[ headers])
+    AC_ARG_VAR($1[_LDFLAGS],[linker flags for ]$1[ libraries])
 
-  AC_CACHE_VAL(AS_TR_SH([ax_cv_have_]$1),
-    [save_CPPFLAGS="$CPPFLAGS"
-     save_LDFLAGS="$LDFLAGS"
-     save_LIBS="$LIBS"
+    AC_CACHE_VAL(AS_TR_SH([ax_cv_have_]$1),
+      [AX_SAVE_FLAGS
 
-     AS_IF([test "x$]$1[_CPPFLAGS" != "x"],
-       [CPPFLAGS="$CPPFLAGS $]$1[_CPPFLAGS"])
+      AS_IF([test "x$]$1[_CPPFLAGS" != "x"],
+        [CPPFLAGS="$CPPFLAGS $]$1[_CPPFLAGS"])
 
-     AS_IF([test "x$]$1[_LDFLAGS" != "x"],
-       [LDFLAGS="$LDFLAGS $]$1[_LDFLAGS"])
+      AS_IF([test "x$]$1[_LDFLAGS" != "x"],
+        [LDFLAGS="$LDFLAGS $]$1[_LDFLAGS"])
 
-     AC_CHECK_HEADER($2, [
-       AC_CHECK_LIB($3, [main],
-         [AS_TR_SH([ax_cv_have_]$1)=yes],
-         [AS_TR_SH([ax_cv_have_]$1)=no])
-     ], [AS_TR_SH([ax_cv_have_]$1)=no])
+      AC_CHECK_HEADER($2, [
+        AC_CHECK_LIB($3, [main],
+          [AS_TR_SH([ax_cv_have_]$1)=yes],
+          [AS_TR_SH([ax_cv_have_]$1)=no])
+        ], [AS_TR_SH([ax_cv_have_]$1)=no])
 
-     CPPFLAGS="$save_CPPFLAGS"
-     LDFLAGS="$save_LDFLAGS"
-     LIBS="$save_LIBS"
-    ])
+      AX_RESTORE_FLAGS
+      ])
 
-  AS_IF([test "$]AS_TR_SH([ax_cv_have_]$1)[" = "yes"],
-      [AC_DEFINE([HAVE_]$1, [1], [Define to 1 if ]$1[ is found])
-      AC_SUBST($1[_CPPFLAGS])
-      AC_SUBST($1[_LDFLAGS])
-      AC_SUBST($1[_LIB],[-l]$3)
-      m4_ifval( m4_normalize([$4]), [$4]), 
-      m4_ifval( m4_normalize([$5]), [$5])])
-  AM_CONDITIONAL([HAVE_]$1,[test "$]AS_TR_SH([ax_cv_have_]$1)[" = "yes"])
-  ])
+    AS_IF([test "$]AS_TR_SH([ax_cv_have_]$1)[" = "yes"],
+        [AC_DEFINE([HAVE_]$1, [1], [Define to 1 if ]$1[ is found])
+        AC_SUBST($1[_CPPFLAGS])
+        AC_SUBST($1[_LDFLAGS])
+        AC_SUBST($1[_LIB],[-l]$3)
+        ifelse([$4], , :, [$4])],
+        [ifelse([$5], , :, [$5])])
+    AM_CONDITIONAL([HAVE_]$1,[test "$]AS_TR_SH([ax_cv_have_]$1)[" = "yes"])
+    ])
diff --git a/m4/ax_cxx_gcc_abi_demangle.m4 b/m4/ax_cxx_gcc_abi_demangle.m4
index 2da0057e..02c718ec 100644
--- a/m4/ax_cxx_gcc_abi_demangle.m4
+++ b/m4/ax_cxx_gcc_abi_demangle.m4
@@ -16,6 +16,7 @@
 #
 # LICENSE
 #
+#   Copyright (c) 2012 Brian Aker <brian@tangent.org>
 #   Copyright (c) 2008 Neil Ferguson <nferguso@eso.org>
 #
 #   Copying and distribution of this file, with or without modification, are
@@ -25,35 +26,28 @@
 
 #serial 9
 
-  AC_DEFUN([AX_CXX_GCC_ABI_DEMANGLE], 
-      [AC_CACHE_CHECK([whether the compiler supports GCC C++ ABI name demangling],
-        [ax_cv_cxx_gcc_abi_demangle],
-        [AC_LANG_PUSH([C++])
-        AC_COMPILE_IFELSE(
-          [AC_LANG_PROGRAM(
-            [
-#include <typeinfo>
+AC_DEFUN([AX_CXX_GCC_ABI_DEMANGLE],
+    [AC_CACHE_CHECK([whether the compiler supports GCC C++ ABI name demangling],
+      [ax_cv_cxx_gcc_abi_demangle],
+      [AC_LANG_PUSH([C++])
+      AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <typeinfo>
 #include <cxxabi.h>
 #include <cstdlib>
-#include <string>
+#include <string>],
+          [template<typename TYPE>
+          class A {};
+          ],[A<int> instance;
+          int status = 0;
+          char* c_name = abi::__cxa_demangle(typeid(instance).name(), 0, 0, &status);
 
-template<typename TYPE> class A {};
-            ],[
-A<int> instance;
-int status = 0;
-char* c_name = 0;
+          std::string name(c_name);
+          ::free(c_name);
 
-c_name = abi::__cxa_demangle(typeid(instance).name(), 0, 0, &status);
-std::string name(c_name);
-::free(c_name);
-return name == "A<int>";
-            ])],
-          [ax_cv_cxx_gcc_abi_demangle=yes],
+          return name == "A<int>";
+          ])],[ax_cv_cxx_gcc_abi_demangle=yes],
+          [ax_cv_cxx_gcc_abi_demangle=no],
           [ax_cv_cxx_gcc_abi_demangle=no])
-        AC_LANG_POP()
-        ])
-
-        if test "$ax_cv_cxx_gcc_abi_demangle" = yes; then
-          AC_DEFINE(HAVE_GCC_ABI_DEMANGLE, [1], [define if the compiler supports GCC C++ ABI name demangling])
-        fi
-      ])
+      AC_LANG_POP])
+  AS_IF([test "x$ax_cv_cxx_gcc_abi_demangle" = xyes],
+      [AC_DEFINE([HAVE_GCC_ABI_DEMANGLE],[1],[define if the compiler supports GCC C++ ABI name demangling])])
+  ])
-- 
2.30.2