Hi, When I try to cross-compile 1.3.5 for android, with clang 8.0.7 (same with clang 9.0.0), it generates an intparam.h with: #error "Integers of type int have no binary representation!!" #error "Integers of type long have no binary representation!!" #error "Integers of type long long have no binary representation!!"[...] #error "Integer types int and unsigned int have different sizes!!" #error "Integer types long and unsigned long have different sizes!!" #error "Integer types long long and unsigned long long have different sizes!!" #error "Type char * does not fit into an intptr_t!!" I do not get the same errors with 1.3.4. It seems to due to the typedef int[<negative>] -> static_assert change done in 2f7994014542920ad6ca726fbd8d023a5f49abc2. Reverting that commit makes the build succeed again. If I compile the old type of test, everything works fine, so int main() { typedef int verify[2*((int)((int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2) == 0) - 1]; ; return 0; } compiles without errors, while the same test with static_assert int main() { static_assert((int)((int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2 * (int)2) == 0, ""); ; return 0; } fails with "test_new.cpp:3:17: error: static_assert expression is not an integral constant expression" I unfortunately do not know what the proper fix would be, but reverting 2f7994014542920ad6ca726fbd8d023a5f49abc2 makes the build succeed again at least. Best regards, Henrik Grimler