Imported Upstream version 3.10.2+dfsg

m4/ax_compiler_version.m4

@@ -0,0 +1,100 @@
+# ===========================================================================
+#      https://github.com/BrianAker/ddm4/
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_COMPILER_VERSION()
+#
+# DESCRIPTION
+#
+#   Capture version of C/C++ compiler
+#
+# LICENSE
+#
+#  Copyright (C) 2012 Brian Aker
+#  All rights reserved.
+#  
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions are
+#  met:
+#  
+#      * Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#  
+#      * Redistributions in binary form must reproduce the above
+#  copyright notice, this list of conditions and the following disclaimer
+#  in the documentation and/or other materials provided with the
+#  distribution.
+#  
+#      * The names of its contributors may not be used to endorse or
+#  promote products derived from this software without specific prior
+#  written permission.
+#  
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#serial 5
+AC_DEFUN([_C_COMPILER_VERSION],
+    [AC_MSG_CHECKING([C Compiler version])
+
+    AS_CASE(["$ax_cv_c_compiler_vendor"],
+      [sun],[ax_c_compiler_version=`$CC -V 2>&1 | sed 1q`],
+      [intel],[ax_c_compiler_version=`$CC --version 2>&1 | sed 1q`],
+      [clang],[ax_c_compiler_version=`$CC --version 2>&1 | sed 1q`],
+      [gnu],[ax_c_compiler_version=`$CC --version | sed 1q`],
+      [mingw],[ax_c_compiler_version=`$CC --version | sed 1q`],
+      [ax_c_compiler_version="unknown: $ax_cv_c_compiler_vendor"])
+
+    AC_MSG_RESULT(["$ax_c_compiler_version"])
+    AC_SUBST([CC_VERSION_VENDOR],["$ax_cv_c_compiler_vendor"])
+    AC_SUBST([CC_VERSION],["$ax_c_compiler_version"])
+  ])
+
+AC_DEFUN([_CXX_COMPILER_VERSION],
+    [AC_MSG_CHECKING([C++ Compiler version])
+
+    AS_CASE(["$ax_cv_c_compiler_vendor"],
+      [sun],[ax_cxx_compiler_version=`$CXX -V 2>&1 | sed 1q`],
+      [intel],[ax_cxx_compiler_version=`$CXX --version 2>&1 | sed 1q`],
+      [clang],[ax_cxx_compiler_version=`$CXX --version 2>&1 | sed 1q`],
+      [gnu],[ax_cxx_compiler_version=`$CXX --version | sed 1q`],
+      [mingw],[ax_cxx_compiler_version=`$CXX --version | sed 1q`],
+      [ax_cxx_compiler_version="unknown: $ax_cv_c_compiler_vendor"])
+
+    AC_MSG_RESULT(["$ax_cxx_compiler_version"])
+    AC_SUBST([CXX_VERSION_VENDOR],["$ax_cv_c_compiler_vendor"])
+    AC_SUBST([CXX_VERSION],["$ax_cxx_compiler_version"])
+    ])
+
+AC_DEFUN([AX_COMPILER_VERSION],
+    [AC_REQUIRE([AX_COMPILER_VENDOR])
+
+    AC_MSG_CHECKING([MINGW])
+    AC_CHECK_DECL([__MINGW32__],
+      [MINGW=yes
+      ax_c_compiler_version_vendor=mingw],
+      [MINGW=no])
+    AC_MSG_RESULT([$MINGW])
+
+    AC_REQUIRE([_C_COMPILER_VERSION])
+    AC_REQUIRE([_CXX_COMPILER_VERSION])
+    AS_IF([test "x$GCC" = xyes],
+      [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#if !defined(__GNUC__) || (__GNUC__ < 4) || ((__GNUC__ >= 4) && (__GNUC_MINOR__ < 7))
+# error GCC is Too Old!
+#endif
+          ]])],
+        [ac_c_gcc_recent=yes],
+        [ac_c_gcc_recent=no])
+      ])
+    ])