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libgcc_s: add libm dependencies from div{d,s,x}c3

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compiler-rt's complex division support routines contain calls to
compiler builtins such as `__builtin_scalbnl`.  Unfortunately Clang
turns these back into a call to `scalbnl`.

For now link libm's C version of the required support routines.

Reviewed by:	ed
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D8190
This commit is contained in:
Ed Maste 2016-10-13 19:18:00 +00:00
parent 49c5eacbbf
commit bff207520a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=307231
1 changed files with 18 additions and 0 deletions
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18
lib/libgcc_s/Makefile
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@ -11,4 +11,22 @@ VERSION_MAP= ${.CURDIR}/Version.map
.include "../libcompiler_rt/Makefile.inc"
.include "../libgcc_eh/Makefile.inc"
LIBCSRCDIR= ${SRCTOP}/lib/libc
LIBMSRCDIR= ${SRCTOP}/lib/msun/src
CFLAGS+= -I${LIBCSRCDIR}/include -I${LIBCSRCDIR}/${MACHINE_CPUARCH}
CFLAGS+= -I${LIBMSRCDIR}
.PATH: ${LIBMSRCDIR}
SRCS+= s_fabs.c
SRCS+= s_fabsf.c
SRCS+= s_fabsl.c
SRCS+= s_fmax.c
SRCS+= s_fmaxf.c
SRCS+= s_fmaxl.c
SRCS+= s_logb.c
SRCS+= s_logbf.c
SRCS+= s_logbl.c
SRCS+= s_scalbn.c
SRCS+= s_scalbnf.c
SRCS+= s_scalbnl.c
.include <bsd.lib.mk>