git: a6898ea04e4d - stable/13 - lib/msun: Exclude ignored-pragmas from -Werror

[Alex Richardson]

The branch stable/13 has been updated by arichardson:

URL: https://cgit.FreeBSD.org/src/commit/?id=a6898ea04e4dd6c1f4f60622df59f1cd97d288f0

commit a6898ea04e4dd6c1f4f60622df59f1cd97d288f0
Author:     Alex Richardson <arichardson at FreeBSD.org>
AuthorDate: 2021-04-15 15:27:52 +0000
Commit:     Alex Richardson <arichardson at FreeBSD.org>
CommitDate: 2021-04-22 09:44:53 +0000

    lib/msun: Exclude ignored-pragmas from -Werror
    
    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 168234fa67c38f898b784b3265dd77ace0b0a2f9)
---
 lib/msun/Makefile       | 6 ++++++
 lib/msun/tests/Makefile | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/lib/msun/Makefile b/lib/msun/Makefile
index 0a486bb5a086..7107aad56aa7 100644
--- a/lib/msun/Makefile
+++ b/lib/msun/Makefile
@@ -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" && ${COMPILER_VERSION} >= 120000
+# Silence '#pragma FENV_ACCESS' is not supported on this target - ignored
+CWARNFLAGS+=	-Wno-error=ignored-pragmas
+.endif
+
 .include <bsd.lib.mk>
diff --git a/lib/msun/tests/Makefile b/lib/msun/tests/Makefile
index 70f7d2fe5135..d33a1b04888d 100644
--- a/lib/msun/tests/Makefile
+++ b/lib/msun/tests/Makefile
@@ -100,6 +100,12 @@ CFLAGS+=	-DLDBL_PREC=${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>