Author: mmel
Date: Sun Nov 26 16:41:30 2017
New Revision: 326232
URL: https://svnweb.freebsd.org/changeset/base/326232

Log:
  Addd work around for LLVM bug 35023.
  
  Clang crashes when compiling zstd_compress.c with optimization for ARM 
targets.
  https://bugs.llvm.org/show_bug.cgi?id=35023

Modified:
  head/lib/libzstd/Makefile

Modified: head/lib/libzstd/Makefile
==============================================================================
--- head/lib/libzstd/Makefile   Sun Nov 26 16:12:10 2017        (r326231)
+++ head/lib/libzstd/Makefile   Sun Nov 26 16:41:30 2017        (r326232)
@@ -38,4 +38,9 @@ ZSTDDIR=      ${SRCTOP}/sys/contrib/zstd
        ${ZSTDDIR}/lib/decompress ${ZSTDDIR}/lib/deprecated \
        ${ZSTDDIR}/lib/dictBuilder ${ZSTDDIR}/lib
 
+# Work around for LLVM bug 35023, https://bugs.llvm.org/show_bug.cgi?id=35023
+.if ${MACHINE_ARCH:Marm*} != ""
+CFLAGS.zstd_compress.c+= -O0
+.endif
+
 .include <bsd.lib.mk>
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