[Rivet-svn] rivet: Update C++11 detection macro; remove conflicting -ansi flag

[Rivet Mercurial]

details:   https://rivet.hepforge.org/hg/rivet/rev/1ca503a68db3
branches:  
changeset: 5088:1ca503a68db3
user:      David Grellscheid <david.grellscheid at durham.ac.uk>
date:      Sat Apr 02 21:16:56 2016 +0100
description:
Update C++11 detection macro; remove conflicting -ansi flag

diffs (truncated from 720 to 50 lines):

--- a/configure.ac	Thu Mar 31 12:07:20 2016 +0100
+++ b/configure.ac	Sat Apr 02 21:16:56 2016 +0100
@@ -39,7 +39,7 @@
 ## Compiler setup
 AC_LANG(C++)
 AC_PROG_CXX
-AX_CXX_COMPILE_STDCXX_11([noext], [mandatory])
+AX_CXX_COMPILE_STDCXX([11], [noext], [mandatory])
 
 ## Store and propagate the compiler identity and flags
 RIVETCXX="$CXX"
@@ -305,7 +305,6 @@
 AM_CPPFLAGS="$AM_CPPFLAGS -I\$(HEPMCINCPATH)"
 AM_CPPFLAGS="$AM_CPPFLAGS -I\$(FASTJETINCPATH)"
 AC_CEDAR_CHECKCXXFLAG([-pedantic], [AM_CXXFLAGS="$AM_CXXFLAGS -pedantic"])
-AC_CEDAR_CHECKCXXFLAG([-ansi], [AM_CXXFLAGS="$AM_CXXFLAGS -ansi"])
 AC_CEDAR_CHECKCXXFLAG([-Wall], [AM_CXXFLAGS="$AM_CXXFLAGS -Wall"])
 AC_CEDAR_CHECKCXXFLAG([-Wno-long-long], [AM_CXXFLAGS="$AM_CXXFLAGS -Wno-long-long"])
 AC_CEDAR_CHECKCXXFLAG([-Wno-format], [AM_CXXFLAGS="$AM_CXXFLAGS -Wno-format"])
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m4/ax_cxx_compile_stdcxx.m4	Sat Apr 02 21:16:56 2016 +0100
@@ -0,0 +1,562 @@
+# ===========================================================================
+#   http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional])
+#
+# DESCRIPTION
+#
+#   Check for baseline language coverage in the compiler for the specified
+#   version of the C++ standard.  If necessary, add switches to CXX and
+#   CXXCPP to enable support.  VERSION may be '11' (for the C++11 standard)
+#   or '14' (for the C++14 standard).
+#
+#   The second argument, if specified, indicates whether you insist on an
+#   extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g.
+#   -std=c++11).  If neither is specified, you get whatever works, with
+#   preference for an extended mode.
+#
+#   The third argument, if specified 'mandatory' or if left unspecified,
+#   indicates that baseline support for the specified C++ standard is
+#   required and that the macro should error out if no mode with that
+#   support is found.  If specified 'optional', then configuration proceeds
+#   regardless, after defining HAVE_CXX${VERSION} if and only if a
+#   supporting mode is found.
+#
+# LICENSE