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lib/msun: Exclude ignored-pragmas from -Werror

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This avoids build failures due to the clang 12 warning:
    '#pragma FENV_ACCESS' is not supported on this target - ignored

Clang 12 currently emits this warning for all non-x86 architectures.
While this can result in incorrect code generation (e.g. on AArch64 some
exceptions are not raised as expected), this is a pre-existing issue and
we should not fail the build due to this warning.

Reviewed By:	dim, emaste
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D29743

(cherry picked from commit 168234fa67)
This commit is contained in:
Alex Richardson 2021-04-15 16:27:52 +01:00
parent a18882ec97
commit a6898ea04e
2 changed files with 12 additions and 0 deletions
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6
lib/msun/Makefile
View file

@ -255,4 +255,10 @@ MLINKS+=trunc.3 truncf.3 trunc.3 truncl.3
HAS_TESTS=
SUBDIR.${MK_TESTS}+= tests
.include <bsd.compiler.mk>
.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 120000
# Silence '#pragma FENV_ACCESS' is not supported on this target - ignored
CWARNFLAGS+= -Wno-error=ignored-pragmas
.endif
.include <bsd.lib.mk>

6
lib/msun/tests/Makefile
View file

@ -100,6 +100,12 @@ CFLAGS+= -DLDBL_PREC=${LDBL_PREC}
CFLAGS.fe_round_test+= -D__HAVE_FENV
.include <bsd.compiler.mk>
.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 120000
# Silence '#pragma FENV_ACCESS' is not supported on this target - ignored
CWARNFLAGS+= -Wno-error=ignored-pragmas
.endif
.include <netbsd-tests.test.mk>
.include <bsd.test.mk>