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Auto merge of #31388 - gmbonnet:compiler-rt-werror, r=alexcrichton 

Without this patch, `compiler-rt` fails to build when the `CFLAGS` environment variable contains a `-Werror=*` flag (for example `-Werror=format-security`).

The build system was removing only the `-Werror` part from the flag, thus passing an unrecognized `=*` (for example `=format-security`) argument to gcc.
This commit is contained in:
bors 2016-02-05 08:54:46 +00:00
parent 2ad6dc2556 e9dfc94d26
commit 06fac8298f
1 changed files with 1 additions and 1 deletions
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mk/rt.mk
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@ -245,7 +245,7 @@ COMPRT_AR_$(1) := $$(AR_$(1))
# We chomp -Werror here because GCC warns about the type signature of
# builtins not matching its own and the build fails. It's a bit hacky,
# but what can we do, we're building libclang-rt using GCC ......
COMPRT_CFLAGS_$(1) := $$(subst -Werror,,$$(CFG_GCCISH_CFLAGS_$(1))) -std=c99
COMPRT_CFLAGS_$(1) := $$(filter-out -Werror -Werror=*,$$(CFG_GCCISH_CFLAGS_$(1))) -std=c99
# FreeBSD Clang's packaging is problematic; it doesn't copy unwind.h to
# the standard include directory. This should really be in our changes to