MDEV-11708 cmake -DWITH_ASAN no longer works

fix the check (must be have_ not HAVE_)

also remove -O1 and -Wno-error, they aren't not needed for asan

CMakeLists.txt

@@ -183,18 +183,18 @@ INCLUDE(check_compiler_flag)
 OPTION(WITH_ASAN "Enable address sanitizer" OFF)
 IF (WITH_ASAN)
   # gcc 4.8.1 and new versions of clang
-  MY_CHECK_AND_SET_COMPILER_FLAG("-fsanitize=address -O1 -Wno-error -fPIC"
+  MY_CHECK_AND_SET_COMPILER_FLAG("-fsanitize=address -fPIC"
     DEBUG RELWITHDEBINFO)
-  SET(HAVE_C_FSANITIZE ${HAVE_C__fsanitize_address__O1__Wno_error__fPIC})
-  SET(HAVE_CXX_FSANITIZE ${HAVE_CXX__fsanitize_address__O1__Wno_error__fPIC})
+  SET(HAVE_C_FSANITIZE ${have_C__fsanitize_address__fPIC})
+  SET(HAVE_CXX_FSANITIZE ${have_CXX__fsanitize_address__fPIC})
   IF(HAVE_C_FSANITIZE AND HAVE_CXX_FSANITIZE)
     SET(WITH_ASAN_OK 1)
   ELSE()
     # older versions of clang
-    MY_CHECK_AND_SET_COMPILER_FLAG("-faddress-sanitizer -O1 -fPIC"
+    MY_CHECK_AND_SET_COMPILER_FLAG("-faddress-sanitizer -fPIC"
       DEBUG RELWITHDEBINFO)
-    SET(HAVE_C_FADDRESS ${HAVE_C__faddress_sanitizer__O1__fPIC})
-    SET(HAVE_CXX_FADDRESS ${HAVE_CXX__faddress_sanitizer__O1__fPIC})
+    SET(HAVE_C_FADDRESS ${have_C__faddress_sanitizer__fPIC})
+    SET(HAVE_CXX_FADDRESS ${have_CXX__faddress_sanitizer__fPIC})
     IF(HAVE_C_FADDRESS AND HAVE_CXX_FADDRESS)
       SET(WITH_ASAN_OK 1)
     ENDIF()