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Prefer --ld-path=/path/to/ld on clang >= 12

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Clang 12 warns about passing a path to -fuse-ld and -Werror makes that
an error preventing building world without this change.

Reviewed by:	arichardson, emaste
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26591
This commit is contained in:
Brooks Davis 2020-09-29 22:30:15 +00:00
parent 0e99339684
commit 17b8b8fb5f
1 changed files with 4 additions and 1 deletions
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5
share/mk/bsd.sys.mk
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@ -296,10 +296,13 @@ CFLAGS+= ERROR-tried-to-rebuild-during-make-install
# Please keep this if in sync with kern.mk
.if ${LD} != "ld" && (${CC:[1]:H} != ${LD:[1]:H} || ${LD:[1]:T} != "ld")
# Add -fuse-ld=${LD} if $LD is in a different directory or not called "ld".
# Note: Clang 12+ will prefer --ld-path= over -fuse-ld=.
.if ${COMPILER_TYPE} == "clang"
.if ${COMPILER_VERSION} >= 120000
LDFLAGS+= --ld-path=${LD:[1]:S/^ld.//1W}
.else
# Note: Clang does not like relative paths in -fuse-ld so we map ld.lld -> lld.
LDFLAGS+= -fuse-ld=${LD:[1]:S/^ld.//1W}
.endif
.else
# GCC does not support an absolute path for -fuse-ld so we just print this
# warning instead and let the user add the required symlinks.