tree 73f58f20d8df4e89303cf35bd7b3929f96aee15a
parent 5590c715e26790d9b60384e1ac092529a19208af
author David Benjamin <davidben@google.com> 1547577957 -0600
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1547673240 +0000

Don't look for libunwind if cross-compiling.

pkg-config gets confused and doesn't know to look in, say,
/usr/lib/i386-linux-gnu when building for 32-bit. Fortunately, CMake
sets a CMAKE_CROSSCOMPILING variable whenever CMAKE_SYSTEM_NAME is set
manually (as done in util/32-bit-toolchain.cmake).

Change-Id: I638b4d54ea92ade4b2b5baa40a3c5e8c17914d46
Reviewed-on: https://boringssl-review.googlesource.com/c/34305
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>