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-rw-r--r--var/spack/repos/builtin/packages/m4/package.py8
1 files changed, 5 insertions, 3 deletions
diff --git a/var/spack/repos/builtin/packages/m4/package.py b/var/spack/repos/builtin/packages/m4/package.py
index 2523745e58..267b9c3784 100644
--- a/var/spack/repos/builtin/packages/m4/package.py
+++ b/var/spack/repos/builtin/packages/m4/package.py
@@ -48,11 +48,13 @@ class M4(AutotoolsPackage):
spec = self.spec
args = ['--enable-c++']
+ # CFLAGS handling
+ cflags = copy.deepcopy(optflags[self.spec.compiler.name])
if spec.satisfies('%clang') and not spec.satisfies('platform=darwin'):
- args.append('CFLAGS=-rtlib=compiler-rt')
-
+ cflags.append('-rtlib=compiler-rt')
if spec.satisfies('%intel'):
- args.append('CFLAGS=-no-gcc')
+ cflags.append('-no-gcc')
+ args.append('CFLAGS = {0}'.format(' '.join(cflags)))
if '+sigsegv' in spec:
args.append('--with-libsigsegv-prefix={0}'.format(