gcc-4.8: After build, remove "fixed" headers.

gcc-4.8/build.sh

@@ -29,3 +29,13 @@ fi
 make
 make install
 rm $PREFIX/lib64
+
+# Lastly, remove the headers that gcc "fixed".
+# They kill the gcc binary's portability to other systems,
+#   and shouldn't be necessary on ANSI-compliant systems anyway.
+# More discussion can be found here:
+# https://groups.google.com/a/continuum.io/d/msg/conda/HwUazgD-hJ0/aofO0vD-MhcJ
+while read x ; do
+  grep -q 'It has been auto-edited by fixincludes from' "${x}" \
+           && rm -f "${x}"
+done < <(find ${PREFIX}/lib/gcc/*/*/include*/ -name '*.h')