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-rw-r--r--var/spack/repos/builtin/packages/flex/package.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/var/spack/repos/builtin/packages/flex/package.py b/var/spack/repos/builtin/packages/flex/package.py
index 8d5ffe11c3..a4a9718e04 100644
--- a/var/spack/repos/builtin/packages/flex/package.py
+++ b/var/spack/repos/builtin/packages/flex/package.py
@@ -53,6 +53,10 @@ class Flex(AutotoolsPackage):
depends_on('automake', type='build', when='@:2.6.0')
depends_on('libtool', type='build', when='@:2.6.0')
+ # Build issue for v2.6.4 when gcc 7.2.0 is used.
+ # See issue #219; https://github.com/westes/flex/issues/219
+ conflicts('%gcc@7.2.0:', when='@2.6.4')
+
def url_for_version(self, version):
url = "https://github.com/westes/flex"
if version >= Version('2.6.1'):