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# $NetBSD: hacks.mk,v 1.26 2020/08/31 18:00:37 wiz Exp $
.if !defined(PERL5_HACKS_MK)
PERL5_HACKS_MK= defined
.include "../../mk/compiler.mk"
### [ Fri Oct 11 10:00:00 UTC 2011 : hauke ]
###
### On m68k, gcc creates short assembler branch insns, and expects
### the assembler to adapt them to the distance. m68k gas appears not to
### do that for fpu branch insns, resulting in an out-of-range FPU
### assembler branch instruction error in "ext/re/re_exec.c".
###
### As a workaround, building with "-Os" instead of "-O2" reduces
### the size of the object file enough to allow short branches.
###
### See PR toolchain/45439.
.if ${OPSYS} == "NetBSD" && ${MACHINE_ARCH} == "m68k"
PKG_HACKS+= m68k-codegen
BUILDLINK_TRANSFORM+= opt:-O[0-9]*:-Os
.endif
### [Fri Jan 31 11:09:04 CST 2014 : schnoebe]
### [Fri Oct 28 11:53:57 EDT 2016 : dholland - extended to gcc5]
### gcc-[45].*.* in NetBSD/alpha causes unaligned access exception in perl.
### -O works around, and there is a report that -O2 -fno-tree-ter is enough.
.if (!empty(MACHINE_PLATFORM:MNetBSD-*-alpha) || !empty(MACHINE_PLATFORM:MOpenBSD-*-alpha)) \
&& !empty(CC_VERSION:Mgcc-[45].*.*)
# XXX: is there any good way to replace the default -O2 with multiple args?
PKG_HACKS+= alpha-optimisation
#BUILDLINK_TRANSFORM+= opt:-O[2-9]*:-O2 -fno-tree-ter
CFLAGS+= -fno-tree-ter
.endif
### [Thu May 14 23:17:20 JST 2015 : ryoon]
### Force to use /usr/sfw/lib/amd64/libgcc_s.co.1 instead.
.if ${MACHINE_PLATFORM} == SunOS-5.10-x86_64
. if ${CC_VERSION} == gcc-3.4.3
BUILDLINK_PASSTHRU_RPATHDIRS+= /usr/sfw/lib/amd64
LDFLAGS+= ${COMPILER_RPATH_FLAG}/usr/sfw/lib/amd64
. endif
.endif
### [Thu Aug 6 14:43:56 PDT 2015 : mrg]
### On NetBSD/{mips,vax,sparc64}, the -freorder-blocks option in -O2
### causes opmini.c to be miscompiled, and perl build fails.
###
.if !empty(CC_VERSION:Mgcc-4.5.*) && ${OPSYS} == "NetBSD"
. if (${MACHINE_ARCH} == "vax" || \
${MACHINE_CPU} == "mips" || \
${MACHINE_ARCH} == "sparc" || \
${MACHINE_ARCH} == "sparc64")
PKG_HACKS+= gcc-4.5-codegen
CFLAGS+= -fno-reorder-blocks
. endif
.endif
.endif # PERL5_HACKS_MK
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