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-rw-r--r--var/spack/repos/builtin/packages/pigz/package.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/pigz/package.py b/var/spack/repos/builtin/packages/pigz/package.py
index ed2eecce0e..5f7cb4fda5 100644
--- a/var/spack/repos/builtin/packages/pigz/package.py
+++ b/var/spack/repos/builtin/packages/pigz/package.py
@@ -23,7 +23,7 @@ class Pigz(MakefilePackage):
def build(self, spec, prefix):
# force makefile to use cc as C compiler which is set by
# spack
- make('CC=cc')
+ make('CC=cc', 'CFLAGS=-O3 -Wall')
def install(self, spec, prefix):
mkdirp(prefix.bin)