cmake: onigmo: use PROJECT_SOURCE_DIR instead of CMAKE_CURRENT_SOURCE_DIR
add_library(libonigmo STATIC IMPORTED GLOBAL)
# Global Settings
-set(ONIGMO_SRC "${CMAKE_CURRENT_SOURCE_DIR}/lib/onigmo")
+set(ONIGMO_SRC "${PROJECT_SOURCE_DIR}/lib/onigmo")
set(ONIGMO_DEST "${CMAKE_CURRENT_BINARY_DIR}")
if(CMAKE_SIZEOF_VOID_P MATCHES 8)
