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-rw-r--r--sci-libs/mumps/mumps-5.3.5-r1.ebuild10
1 files changed, 10 insertions, 0 deletions
diff --git a/sci-libs/mumps/mumps-5.3.5-r1.ebuild b/sci-libs/mumps/mumps-5.3.5-r1.ebuild
index 705a251a15d6..8df93f5e4e8c 100644
--- a/sci-libs/mumps/mumps-5.3.5-r1.ebuild
+++ b/sci-libs/mumps/mumps-5.3.5-r1.ebuild
@@ -63,6 +63,16 @@ static_to_shared() {
}
src_prepare() {
+ # -Werror=strict-aliasing
+ # https://bugs.gentoo.org/862903
+ #
+ # There is an upstream mailing list but it seems to be broken. I *think*,
+ # because it's all in French. I tried and failed to report the bug.
+ #
+ # Do not trust with LTO either.
+ append-flags -fno-strict-aliasing
+ filter-lto
+
# workaround for gcc10 (bug #743442)
append-fflags $(test-flags-FC -fallow-argument-mismatch)