Imported Upstream version 3.2.0

[platform/upstream/libwebsockets.git] / contrib / cross-arm-linux-gnueabihf.cmake

diff --git a/cross-arm-linux-gnueabihf.cmake b/contrib/cross-arm-linux-gnueabihf.cmake
similarity index 53%
rename from cross-arm-linux-gnueabihf.cmake
rename to contrib/cross-arm-linux-gnueabihf.cmake
index 12cf3e9..289f27a 100644 (file)
--- a/cross-arm-linux-gnueabihf.cmake
+++ b/contrib/cross-arm-linux-gnueabihf.cmake
@@ -15,6 +15,22 @@ set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_C_COMPILER "${CROSS_PATH}/bin/arm-linux-gnueabihf-gcc")
 set(CMAKE_CXX_COMPILER "${CROSS_PATH}/bin/arm-linux-gnueabihf-g++")
 
+#
+# Different build system distros set release optimization level to different
+# things according to their local policy, eg, Fedora is -O2 and Ubuntu is -O3
+# here.  Actually the build system's local policy is completely unrelated to
+# our desire for cross-build release optimization policy for code built to run
+# on a completely different target than the build system itself.
+#
+# Since this goes last on the compiler commandline we have to override it to a
+# sane value for cross-build here.  Notice some gcc versions enable broken
+# optimizations with -O3.
+#
+if (CMAKE_BUILD_TYPE MATCHES RELEASE OR CMAKE_BUILD_TYPE MATCHES Release OR CMAKE_BUILD_TYPE MATCHES release)
+       set(CMAKE_C_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE} -O2)
+       set(CMAKE_CXX_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE} -O2)
+endif()
+
 # Where to look for the target environment. (More paths can be added here)
 set(CMAKE_FIND_ROOT_PATH "${CROSS_PATH}")