Slight cleanup, use of the yyacc.c program to build the grammar, and pass along the toolset to the RPM package build.

[SVN r16356]

tools/build

@@ -1 +1 @@
-Subproject commit 9659d427c4cc6f3129c2dd741b20d8e1b75728a9
+Subproject commit 4766cf30e03bd15168b3d61b93fd649c91c824d3