diff --git a/conf/intel/portage/env/O3.amd64.conf b/conf/intel/portage/env/O3.amd64.conf
index 33a5948..6d497b3 100644
--- a/conf/intel/portage/env/O3.amd64.conf
+++ b/conf/intel/portage/env/O3.amd64.conf
@@ -1,4 +1,5 @@
 # Set -O3 for perf. critical packages
 FEATURES="test splitdebug"
-CFLAGS="-O3 -march=x86-64 -pipe"
+CFLAGS="-O3 -march=x86-64 -pipe ${GRAPHITE}"
+#CFLAGS="-O3 -ffast-math -march=x86-64 -pipe ${GRAPHITE}"
 CXXFLAGS="${CFLAGS}"
diff --git a/conf/intel/portage/env/O3.x86.conf b/conf/intel/portage/env/O3.x86.conf
index e921449..4cae41e 100644
--- a/conf/intel/portage/env/O3.x86.conf
+++ b/conf/intel/portage/env/O3.x86.conf
@@ -1,4 +1,5 @@
 # Set -O3 for perf. critical packages
 FEATURES="test splitdebug"
-CFLAGS="-O3 -march=i686 -pipe"
+CFLAGS="-O3 -march=i686 -pipe ${GRAPHITE}"
+#CFLAGS="-O3 -ffast-math -march=i686 -pipe ${GRAPHITE}"
 CXXFLAGS="${CFLAGS}"
diff --git a/conf/intel/portage/env/damn.sse.conf b/conf/intel/portage/env/damn.sse.conf
index 1da7791..2ee02e7 100644
--- a/conf/intel/portage/env/damn.sse.conf
+++ b/conf/intel/portage/env/damn.sse.conf
@@ -1,3 +1,3 @@
 # Damn x86 packages requiring SSE
-CFLAGS="-O2 -march=i686 -msse -msse2"
+CFLAGS="-O2 -march=i686 -msse -msse2 ${GRAPHITE}"
 CXXFLAGS="${CFLAGS}"