Without this, cmake will use whatever CC/CXX is set to, which could be
clang. In that case, at least libjson-c/host will fail to compile.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
LDFLAGS="$(HOST_LDFLAGS)" \
cmake \
-DCMAKE_BUILD_TYPE=Release \
+ -DCMAKE_C_COMPILER="$(HOSTCC)" \
+ -DCMAKE_CXX_COMPILER="$(HOSTCXX)" \
-DCMAKE_C_FLAGS_RELEASE="-DNDEBUG" \
-DCMAKE_CXX_FLAGS_RELEASE="-DNDEBUG" \
-DCMAKE_EXE_LINKER_FLAGS:STRING="$(HOST_LDFLAGS)" \