Build regular -fexceptions

Trying to link -fwasm-exceptions with files that use just -fexceptions causes issues; easier to stick to old -fexceptions for now.

build.sh

@@ -98,7 +98,7 @@ if [ "$PIC" = "true" ]; then PIC_FLAG=--pic; fi
 #export LDFLAGS+=" --source-map-base http://localhost:3000/lib/"
 
 # Common compiler flags
-export CFLAGS="-O3 -fno-rtti -fwasm-exceptions -mnontrapping-fptoint -pthread"
+export CFLAGS="-O3 -fno-rtti -fexceptions -mnontrapping-fptoint -pthread"
 if [ "$SIMD" = "true" ]; then export CFLAGS+=" -msimd128 -DWASM_SIMD_COMPAT_SLOW"; fi
 if [ "$WASM_BIGINT" = "true" ]; then
   # libffi needs to detect WASM_BIGINT support at compile time