commit:     3b05cbc43c32d8c519df31a6ccabd17ebd0d6d19
Author:     Eli Schwartz <eschwartz93 <AT> gmail <DOT> com>
AuthorDate: Thu Mar 21 03:05:50 2024 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Thu Mar 21 05:57:37 2024 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=3b05cbc4

sci-libs/mumps: mark as LTO-unsafe, strict-aliasing unsafe

I would like to report this upstream. However, the only contact method
is their mailing list. And their mailing list may or may not work -- I
find it hard to tell because I've never seen the interface before, but
it is mostly in French and the bit that I recognized doesn't seem to
have working links to e.g. the archive.

Closes: https://bugs.gentoo.org/862903
Signed-off-by: Eli Schwartz <eschwartz93 <AT> gmail.com>
Signed-off-by: Sam James <sam <AT> gentoo.org>

 sci-libs/mumps/mumps-5.3.5-r1.ebuild | 10 ++++++++++
 1 file changed, 10 insertions(+)

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)
 

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