fix: correctly get the locally built x264 dependency

Author: Totto16

platforms/build-web.sh

@@ -48,6 +48,8 @@ export EMSCRIPTEN_SYS_ROOT="$EMSCRIPTEN_UPSTREAM_ROOT/cache/sysroot"
 EMSCRIPTEN_SYS_LIB_DIR="$EMSCRIPTEN_SYS_ROOT/lib/wasm32-emscripten"
 EMSCRIPTEN_SYS_PKGCONFIG_DIR="$EMSCRIPTEN_SYS_ROOT/lib/pkgconfig"
 
+export PKG_CONFIG_PATH="$EMSCRIPTEN_SYS_PKGCONFIG_DIR:$EMSCRIPTEN_SYS_LIB_DIR/pkgconfig"
+
 export CC="emcc"
 export CXX="em++"
 export AR="emar"
@@ -101,8 +103,7 @@ if [ "$COMPILE_TYPE" == "complete_rebuild" ] || ! [ -e "$BUILD_FFMPEG_FILE" ]; t
             --host=i686-gnu \
             --sysroot="$EMSCRIPTEN_SYS_ROOT" \
             --prefix="$EMSCRIPTEN_SYS_ROOT" \
-            --libdir="$EMSCRIPTEN_SYS_LIB_DIR" \
-            --pkgconfigdir="$EMSCRIPTEN_SYS_PKGCONFIG_DIR"
+            --libdir="$EMSCRIPTEN_SYS_LIB_DIR" 
 
         emmake make -j