When compiling Mongo core components on a Power9 with GCC 7 (Advance Toolchain 11.02)
Got following error,
opt/at11.0/bin/gcc -o build/opt/third_party/wiredtiger/src/block/block_compact.o -c -std=c11 -fno-omit-frame-pointer -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -O2 -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -Wno-unused-const-variable -Wno-unused-but-set-variable -Wno-missing-braces -fstack-protector-strong -fno-builtin-memcmp -fPIE -DPCRE_STATIC -DNDEBUG -D_FORTIFY_SOURCE=2 -DBOOST_THREAD_VERSION=4 -DBOOST_THREAD_DONT_PROVIDE_VARIADIC_THREAD -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_THREAD_DONT_PROVIDE_INTERRUPTIONS -DBOOST_THREAD_HAS_NO_EINTR_BUG -DHAVE_VERBOSE -DHAVE_FALLOCATE -DHAVE_SYNC_FILE_RANGE -DHAVE_X86INTRIN_H -D_GNU_SOURCE -DHAVE_BUILTIN_EXTENSION_ZLIB -DHAVE_BUILTIN_EXTENSION_SNAPPY -DHAVE_CRC32_HARDWARE -Isrc/third_party/snappy-1.1.3 -Isrc/third_party/zlib-1.2.8 -Ibuild/opt/third_party/wiredtiger -Isrc/third_party/wiredtiger -Ibuild/opt/third_party/wiredtiger/src/include -Isrc/third_party/wiredtiger/src/include -Ibuild/opt/third_party/wiredtiger/build_linux -Isrc/third_party/wiredtiger/build_linux src/third_party/wiredtiger/src/block/block_compact.c
In file included from src/third_party/wiredtiger/src/include/wt_internal.h:384:0,
from src/third_party/wiredtiger/src/async/async_api.c:9:
src/third_party/wiredtiger/src/include/cursor.i: In function '__cursor_func_init':
src/third_party/wiredtiger/src/include/cursor.i:234:6: error: used vector type where scalar is required
if (reenter) {
^~~~~~~
In file included from src/third_party/wiredtiger/src/include/btree_cmp.i:11:0,
from src/third_party/wiredtiger/src/include/wt_internal.h:382,
from src/third_party/wiredtiger/src/async/async_op.c:9:

The reason of this is that gcc used -DHAVE_X86INTRIN_H which was generated by
====================================================================================
./src/third_party/wiredtiger/SConscript

if conf.CheckCHeader('x86intrin.h'):
conf.env.Append(CPPDEFINES=[
"HAVE_X86INTRIN_H"
])

=====================================================================================
I was told GCC 7 and later version will have the file, x86intrin.h, included, is there a way we could avoid it if the target platform is not x86?

Thanks