cpack: Fix ignore files

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>

CPackConfig.cmake

@@ -10,7 +10,7 @@ set(CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
 
 # SOURCE GENERATOR
 set(CPACK_SOURCE_GENERATOR "TXZ")
-set(CPACK_SOURCE_IGNORE_FILES "~$;[.]swp$;/[.]git/;.gitignore;build;obj*;tags;cscope.*")
+set(CPACK_SOURCE_IGNORE_FILES "~$;[.]swp$;/[.]git/;.gitignore;/build*;/obj*;tags;cscope.*")
 set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
 
 ### NSIS INSTALLER