diff --git a/bionetgen.spec b/bionetgen.spec
index a1c7b26..680ef36 100644
--- a/bionetgen.spec
+++ b/bionetgen.spec
@@ -56,7 +56,8 @@ pushd bng2/Network3
 autoreconf -iv
 %_openmpi_load
 
-%configure
+warnings="-Wno-unused-variable -Wno-unused-function -Wno-unused-but-set-variable -Wno-maybe-uninitialized"
+CXXFLAGS="%{__global_cxxflags} $warnings" %configure
 %make_build -C src
 
 %install