cmake: add /FORCE:MULTIPLE to handle fabsl being defined in compiler_rt as well as libcmpt

Author: kcbanner

CMakeLists.txt

@@ -733,7 +733,7 @@ if(MSVC)
   set(ZIG_WASM2C_COMPILE_FLAGS "")
   set(ZIG1_COMPILE_FLAGS "/Os")
   set(ZIG2_COMPILE_FLAGS "/Od")
-  set(ZIG2_LINK_FLAGS "/STACK:16777216")
+  set(ZIG2_LINK_FLAGS "/STACK:16777216 /FORCE:MULTIPLE")
 else()
   set(ZIG_WASM2C_COMPILE_FLAGS "-std=c99 -O2")
   set(ZIG1_COMPILE_FLAGS "-std=c99 -Os")