From: Ole Streicher Date: Tue, 5 Jul 2016 15:13:46 +0200 Subject: Work around a weird optimization bug in armhf Without this patch, compilation on armhf fails with . /tmp/ccJsRMs3.s: Assembler messages: /tmp/ccJsRMs3.s:21403: Warning: base register written back, and overlaps one of transfer registers /tmp/ccJsRMs3.s:28133: Error: registers may not be the same -- `str r3, [r3], #4' /tmp/ccJsRMs3.s:28971: Warning: base register written back, and overlaps one of transfer registers . on gcc-4.9.4. See https://buildd.debian.org/status/fetch.php?pkg=starlink-ast&arch=armhf&ver=8.0.2%2Bdfsg-1&stamp=1414223014 as example. . The error appears with MAKE_MASK(F, float), while the warnings are with MAKE_MASK(D, double) and MAKE_MASK(LD, long double). --- region.c | 1 + 1 file changed, 1 insertion(+) diff --git a/region.c b/region.c index 3554296..330b3e0 100644 --- a/region.c +++ b/region.c @@ -234,6 +234,7 @@ f - AST_SHOWMESH: Display a mesh of points on the surface of a Region * usually extend astSimplify. */ +#pragma GCC optimize ("no-expensive-optimizations") /* Module Macros. */ /* ============== */