diff -up ./configure.ac.sav ./configure.ac

--- ./configure.ac.sav	2011-07-22 10:28:06.000000000 -0400

+++ ./configure.ac	2011-07-22 10:28:20.000000000 -0400

@@ -24,6 +24,9 @@

 if test "x$CXX" = x; then

    AC_MSG_ERROR([No C++ compiler found.])

 fi

+

+ALT_OPT_CFLAGS="$(rpm --eval '%optflags' | sed -e 's/-mtune=generic//1')"

+AC_SUBST(ALT_OPT_CFLAGS)

 IT_FIND_TOOL([MAKE], [make])

 IT_FIND_TOOL([GZIP], [gzip])