Older versions of libiconv don't work with newer versions of GCC (spack#6829)

adamjstewart · web-flow · commit ab4e20a49c98 · 2018-01-10T09:47:33.000-06:00
diff --git a/var/spack/repos/builtin/packages/libiconv/package.py b/var/spack/repos/builtin/packages/libiconv/package.py
@@ -40,6 +40,8 @@ class Libiconv(AutotoolsPackage):
     # of C11 any more and thus might not exist.
     patch('gets.patch', when='@1.14')
 
+    conflicts('@1.14', when='%gcc@5:')
+
     def configure_args(self):
         args = ['--enable-extra-encodings']
 
