diff options
| -rw-r--r-- | lib/msun/Makefile | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/msun/Makefile b/lib/msun/Makefile index 6ad0e0e5c428..8852439d5b3c 100644 --- a/lib/msun/Makefile +++ b/lib/msun/Makefile @@ -34,6 +34,17 @@ CFLAGS+= -I${.CURDIR}/ld128 CFLAGS+= -I${.CURDIR}/${ARCH_SUBDIR} +.include <bsd.compiler.mk> +.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 100000 && \ + (${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386") +# When using clang with x86_64 CPUs that support AVX, some floating point +# transformations may raise exceptions that would not have been raised by the +# original code. To avoid this, use the -fp-exception-behavior=maytrap flag, +# introduced in clang 10.0.0. +# See also: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254911 +CFLAGS+= -ffp-exception-behavior=maytrap +.endif + .PATH: ${.CURDIR}/bsdsrc .PATH: ${.CURDIR}/src .PATH: ${.CURDIR}/man @@ -113,7 +124,6 @@ COMMON_SRCS+= catrigl.c \ # 'long double' [-Werror=overflow] # if( y >= LDBL_MAX ) # See also: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=130067 -.include <bsd.compiler.mk> .if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000 CFLAGS.e_powl.c+= -Wno-error=overflow .endif |