Add test for -fno-common for C compiler flags (i don't think this is a problem on architecture other than MAC); also added a commented out line for the same option for F77. The man page for g77 does not recommend using -fno-common, but i don't believe you will be able to build a shared library on MAC without it. I think it may be used to implement common blocks, which as we don't use we may be able to specify it.
Add test for -fno-common for C compiler flags (i don't think this
is a problem on architecture other than MAC); also added a commented
out line for the same option for F77. The man page for g77
does not recommend using -fno-common, but i don't believe you will be
able to build a shared library on MAC without it. I think it may be
used to implement common blocks, which as we don't use we may be able
to specify it.


git-svn-id: 1001b6e0dd469eaa302a741812f7f5d223cf35f7@250 ff5d1e40-2be0-497f-93bd-dc18237bd3c7

chrisemblhh/nexus,nexusformat/code,nexusformat/code,nexusformat/code,chrisemblhh/nexus,chrisemblhh/nexus,chrisemblhh/nexus,nexusformat/code,chrisemblhh/nexus,nexusformat/code