configuring Herwig++ 7.0.1 fails with gcc 5.3

[Peter Richardson]

configuring Herwig++ 7.0.1 fails with gcc 5.3 with the following error:

checking for the toolset name used by Boost for
/afs/cern.ch/sw/lcg/contrib/gcc/5.3/x86_64-slc6/bin/g++... configure:
WARNING: could not figure out which toolset name to use for
/afs/cern.ch/sw/lcg/contrib/gcc/5.3/x86_64-slc6/bin/g++

checking boost/system/error_code.hpp usability... yes
checking boost/system/error_code.hpp presence... yes
checking for boost/system/error_code.hpp... yes
checking for the Boost system library... no
configure: error: cannot find the flags to link with Boost system

This is caused by configure script not being aware of GCC 5.3's
existence (it only knows about GCC 5.2 and older). This can be fixed by
applying the following patch:

--- ./m4/boost.m4.orig    2016-04-08 11:15:54.051868634 +0200
+++ ./m4/boost.m4    2016-04-08 11:16:19.420108857 +0200
@@ -1305,6 +1305,8 @@
    # I'm not sure about my test for `il' (be careful: Intel's ICC
pre-defines
    # the same defines as GCC's).
    for i in \
+    _BOOST_mingw_test(5, 3) \
+    _BOOST_gcc_test(5, 3) \
      _BOOST_mingw_test(5, 2) \
      _BOOST_gcc_test(5, 2) \
      _BOOST_mingw_test(5, 1) \

Could you please take this into account in the next release of Herwig?

[David Grellscheid]

Fixed in 7.0.2