Buildworld failing during llvm

Hi everyone,

My attempts to build FreeBSD 12-current have been failing as of yesterday
with the error below. This problem persists with current at the time of
writing this email (r329497).

Given llvm was updated to 6.0 around that time, I suspect it is related:
https://svnweb.freebsd.org/base?view=revision&revision=329410


--- clang.full ---
c++ -O2 -pipe
-I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libclang
-I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm
-I/usr/src/contrib/llvm/tools/clang/include -I/usr/src/lib/clang/include
-I/usr/src/contrib/llvm/include -DLLVM_BUILD_GLOBAL_ISEL
-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS
-DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknown-freebsd12.0\"
-DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd12.0\"
-DDEFAULT_SYSROOT=\"/usr/obj/usr/src/amd64.amd64/tmp\" -ffunction-sections
-fdata-sections -g -O0 -Qunused-arguments
-I/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/include -std=c++11
-fno-exceptions -fno-rtti -g -O0 -stdlib=libc++ -Wno-c++11-extensions
-Wl,--gc-sections -static -L/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/lib
-o clang.full  cc1_main.o cc1as_main.o driver.o
/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libclang/libclang.a
/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm/libllvm.a
-L/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/libz -lz
-L/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/ncurses/ncursesw
-lncursesw -L/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/libthr
-lpthread -legacy
/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm/libllvm.a:
could not read symbols: Malformed archive
c++: error: linker command failed with exit code 1 (use -v to see
invocation)
*** [clang.full] Error code 1


Regards,
Ben

--
From: Benjamin Woods
woodsb02_at_gmail.com