No need to save/restore C*FLAGS, they are only used for one script.

Use CMAKE_*_FLAGS_RELWITHDEBINFO for C*FLAGS expansion, they are
the most likely to contain the flags we need.

scripts/CMakeLists.txt

@@ -90,15 +90,13 @@ IF(MALLOC_LIB)
 ENDIF()
 
 IF(CMAKE_GENERATOR MATCHES "Makefiles")
-  # No multiconfig build - use CMAKE_C_FLAGS
-  SET(CFLAGS "@CMAKE_C_FLAGS@")
-  SET(CXXFLAGS "@CMAKE_CXX_FLAGS@")
+  SET(CFLAGS "@CMAKE_C_FLAGS_RELWITHDEBINFO@")
+  SET(CXXFLAGS "@CMAKE_CXX_FLAGS_RELWITHDEBINFO@")
   FOREACH(ARCH ${CMAKE_OSX_ARCHITECTURES})
     SET(CFLAGS   "${CFLAGS} -arch ${ARCH}")
     SET(CXXFLAGS "${CXXFLAGS} -arch ${ARCH}")
   ENDFOREACH()
 ELSE()
-  # Multiconfig build - use CMAKE_C_FLAGS_RELWITHDEBINFO
   SET(CFLAGS "@CMAKE_C_FLAGS_RELWITHDEBINFO@")
   SET(CXXFLAGS "@CMAKE_CXX_FLAGS_RELWITHDEBINFO@")
 ENDIF()
@@ -144,16 +142,10 @@ SET(HOSTNAME "hostname")
 # and expand default cmake variables
 SET(CC ${CMAKE_C_COMPILER})
 SET(CXX ${CMAKE_CXX_COMPILER})
-# Override CFLAGS for mysqlbug then reset
-SET(BACKUP_CFLAGS ${CFLAGS})
-SET(BACKUP_CXXFLAGS ${CXXFLAGS})
-SET(CFLAGS ${CMAKE_C_FLAGS_RELWITHDEBINFO})
-SET(CXXFLAGS ${CMAKE_CXX_FLAGS_RELWITHDEBINFO})
-#
 SET(SAVE_CC ${CMAKE_C_COMPILER})
 SET(SAVE_CXX ${CMAKE_CXX_COMPILER})
-SET(SAVE_CFLAGS ${CMAKE_C_FLAGS_RELWITHDEBINFO})
-SET(SAVE_CXXFLAGS ${CMAKE_CXX_FLAGS_RELWITHDEBINFO})
+SET(SAVE_CFLAGS ${CFLAGS})
+SET(SAVE_CXXFLAGS ${CXXFLAGS})
 # XXX no cmake equivalent for this, just make one up
 SET(CONFIGURE_LINE "Built using CMake")
 
@@ -183,10 +175,6 @@ INSTALL_SCRIPT(${CMAKE_CURRENT_BINARY_DIR}/mysqlbug
   COMPONENT Server
   )
 
-# Reset CFLAGS/CXXFLAGS back
-SET(CFLAGS ${BACKUP_CFLAGS})
-SET(CXXFLAGS ${BACKUP_CXXFLAGS})
-
 ENDIF(UNIX)
 
 # Really ugly, one script, "mysql_install_db", needs prefix set to ".",