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| author | Panu Matilainen <pmatilai@redhat.com> | 2021-03-18 13:02:16 +0200 |
|---|---|---|
| committer | Panu Matilainen <pmatilai@redhat.com> | 2021-03-22 12:12:12 +0200 |
| commit | 6e5ae90c64517bb70333955db0a7a5a3ca7be798 (patch) | |
| tree | 37397cf39487487803e4978d188b55236cbead2e | |
| parent | 70695e0551089acd3c8b5e5377f450f6bf083943 (diff) | |
| download | rpm-6e5ae90c64517bb70333955db0a7a5a3ca7be798.tar.gz | |
Restore (some) compiler sanity
-fno-strict-overflow tells gcc and clang to handle signed integer and
(at least on gcc) pointer arithmetic wraparound using twos-complement
representation like deity intended.
-fno-delete-null-pointer-checks tells gcc not to "optimize" away
programmer added safeguards. Really.
Suggested by Demi Marie Obenour.
Backported from commit 5ee567ebd600c1dec4a9ceb6161d877d891d8594
| -rw-r--r-- | configure.ac | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index d3aeab86e..0f8104fc4 100644 --- a/configure.ac +++ b/configure.ac @@ -37,7 +37,7 @@ fi AS=${AS-as} AC_SUBST(AS) if test "$GCC" = yes; then - cflags_to_try="-fno-strict-aliasing -fstack-protector -Wempty-body" + cflags_to_try="-fno-strict-aliasing -fstack-protector -fno-strict-overflow -fno-delete-null-pointer-checks -Wempty-body" AC_MSG_CHECKING([supported compiler flags]) old_cflags=$CFLAGS echo |