Fix clog builds still happening if logging is disabled because of asan (

microsoft#1119)

This actually causes a pretty huge degredation in build times, because the clog files take a long time to compile with asan. The variable was getting read before being modified when asan was being used

CMakeLists.txt

@@ -178,27 +178,6 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${QUIC_OUTPUT_DIR})
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_DEBUG ${QUIC_OUTPUT_DIR})
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${QUIC_OUTPUT_DIR})
 
-if (QUIC_ENABLE_LOGGING)
-    execute_process(COMMAND clog --installDirectory ${QUIC_BUILD_DIR}/clog)
-
-    set(CMAKE_CLOG_OUTPUT_DIRECTORY ${QUIC_BUILD_DIR}/inc)
-    set(CMAKE_CLOG_SIDECAR_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/src/manifest)
-    set(CLOG_INCLUDE_DIRECTORY ${QUIC_BUILD_DIR}/clog)
-    set(CMAKE_CLOG_GENERATE_FILE ${QUIC_BUILD_DIR}/clog/CLog.cmake)
-    set(CMAKE_CLOG_CONFIG_FILE ${CMAKE_CURRENT_SOURCE_DIR}/src/manifest/msquic.clog_config)
-    include(${CMAKE_CLOG_GENERATE_FILE})
-
-    function(add_clog_library)
-        CLOG_GENERATE_TARGET(${ARGV})
-        target_link_libraries(${ARGV0} PRIVATE inc)
-        set_property(TARGET ${ARGV0} PROPERTY FOLDER "clog")
-    endfunction()
-else()
-    function(add_clog_library)
-        add_library(${ARGV0} INTERFACE)
-    endfunction()
-endif()
-
 set(QUIC_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src/inc)
 set(MANIFESTED_HEADER_FILENAME ${QUIC_BUILD_DIR}/inc/MsQuicEtw.h)
 
@@ -523,6 +502,27 @@ if(QUIC_TLS STREQUAL "openssl")
     endif()
 endif()
 
+if (QUIC_ENABLE_LOGGING)
+    execute_process(COMMAND clog --installDirectory ${QUIC_BUILD_DIR}/clog)
+
+    set(CMAKE_CLOG_OUTPUT_DIRECTORY ${QUIC_BUILD_DIR}/inc)
+    set(CMAKE_CLOG_SIDECAR_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/src/manifest)
+    set(CLOG_INCLUDE_DIRECTORY ${QUIC_BUILD_DIR}/clog)
+    set(CMAKE_CLOG_GENERATE_FILE ${QUIC_BUILD_DIR}/clog/CLog.cmake)
+    set(CMAKE_CLOG_CONFIG_FILE ${CMAKE_CURRENT_SOURCE_DIR}/src/manifest/msquic.clog_config)
+    include(${CMAKE_CLOG_GENERATE_FILE})
+
+    function(add_clog_library)
+        CLOG_GENERATE_TARGET(${ARGV})
+        target_link_libraries(${ARGV0} PRIVATE inc)
+        set_property(TARGET ${ARGV0} PROPERTY FOLDER "clog")
+    endfunction()
+else()
+    function(add_clog_library)
+        add_library(${ARGV0} INTERFACE)
+    endfunction()
+endif()
+
 if(QUIC_TLS STREQUAL "mitls")
     # Build Everest.
     add_subdirectory(submodules/everest/msquic/msvc/kremlib)