Support non-GPL builds.

CMakeLists.txt

@@ -268,7 +268,8 @@ ELSE()
   SET(CPACK_GENERATOR "TGZ")
 ENDIF() 
 INCLUDE(CPack)
-INSTALL(FILES COPYING EXCEPTIONS-CLIENT README DESTINATION ${INSTALL_DOCREADMEDIR})
+INSTALL(FILES COPYING EXCEPTIONS-CLIENT LICENSE.mysql DESTINATION ${INSTALL_DOCREADMEDIR} OPTIONAL)
+INSTALL(FILES README DESTINATION ${INSTALL_DOCREADMEDIR})
 IF(UNIX)
   INSTALL(FILES Docs/INSTALL-BINARY DESTINATION 
   ${INSTALL_DOCREADMEDIR})
@@ -282,4 +283,4 @@ INSTALL(DIRECTORY Docs/ DESTINATION ${INSTALL_DOCDIR}
   PATTERN "glibc*" EXCLUDE
   PATTERN "sp-imp-spec.txt" EXCLUDE
   PATTERN "linuxthreads.txt" EXCLUDE
-)
\ No newline at end of file
+)