Merge upstream LTS update 20200923.2

This update preserves both API and ABI compatibility.

1 files changed, 19 insertions, 11 deletions

diff --git a/ci/macos_xcode_cmake.sh b/ci/macos_xcode_cmake.sh
index cf78e207..d90e273a 100755
--- a/ci/macos_xcode_cmake.sh
+++ b/ci/macos_xcode_cmake.sh
@@ -28,17 +28,25 @@ if [[ -z ${ABSL_CMAKE_BUILD_TYPES:-} ]]; then
   ABSL_CMAKE_BUILD_TYPES="Debug"
 fi
 
+if [[ -z ${ABSL_CMAKE_BUILD_SHARED:-} ]]; then
+  ABSL_CMAKE_BUILD_SHARED="OFF ON"
+fi
+
 for compilation_mode in ${ABSL_CMAKE_BUILD_TYPES}; do
-  BUILD_DIR=$(mktemp -d ${compilation_mode}.XXXXXXXX)
-  cd ${BUILD_DIR}
+  for build_shared in ${ABSL_CMAKE_BUILD_SHARED}; do
+    BUILD_DIR=$(mktemp -d ${compilation_mode}.XXXXXXXX)
+    cd ${BUILD_DIR}
 
-  # TODO(absl-team): Enable -Werror once all warnings are fixed.
-  time cmake ${ABSEIL_ROOT} \
-    -GXcode \
-    -DCMAKE_BUILD_TYPE=${compilation_mode} \
-    -DCMAKE_CXX_STANDARD=11 \
-    -DABSL_USE_GOOGLETEST_HEAD=ON \
-    -DABSL_RUN_TESTS=ON
-  time cmake --build .
-  time ctest -C ${compilation_mode} --output-on-failure
+    # TODO(absl-team): Enable -Werror once all warnings are fixed.
+    time cmake ${ABSEIL_ROOT} \
+      -GXcode \
+      -DBUILD_SHARED_LIBS=${build_shared} \
+      -DCMAKE_BUILD_TYPE=${compilation_mode} \
+      -DCMAKE_CXX_STANDARD=11 \
+      -DCMAKE_MODULE_LINKER_FLAGS="-Wl,--no-undefined" \
+      -DABSL_USE_GOOGLETEST_HEAD=ON \
+      -DABSL_RUN_TESTS=ON
+    time cmake --build .
+    time ctest -C ${compilation_mode} --output-on-failure
+  done
 done