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-rw-r--r--var/spack/repos/builtin/packages/gcc/package.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/var/spack/repos/builtin/packages/gcc/package.py b/var/spack/repos/builtin/packages/gcc/package.py
index 04c0e31ac0..cf3765fb31 100644
--- a/var/spack/repos/builtin/packages/gcc/package.py
+++ b/var/spack/repos/builtin/packages/gcc/package.py
@@ -523,6 +523,11 @@ class Gcc(AutotoolsPackage, GNUMirrorPackage):
'--disable-nls'
]
+ # Avoid excessive realpath/stat calls for every system header
+ # by making -fno-canonical-system-headers the default.
+ if self.version >= Version('4.8.0'):
+ options.append('--disable-canonical-system-headers')
+
# Use installed libz
if self.version >= Version('6'):
options.append('--with-system-zlib')