Make pkg-config file of MozJPEG relocatable (kleisauke#79)

Author: kleisauke

build.sh

@@ -332,6 +332,8 @@ node --version
   mkdir $DEPS/jpeg
   curl -Ls https://github.com/mozilla/mozjpeg/archive/refs/tags/v$VERSION_MOZJPEG.tar.gz | tar xzC $DEPS/jpeg --strip-components=1
   cd $DEPS/jpeg
+  # TODO(kleisauke): Discuss this patch upstream
+  curl -Ls https://github.com/kleisauke/libjpeg-turbo/commit/a60fb467fc7601b008741d42e98268c8a7bcb5b4.patch | patch -p1
   # Compile without SIMD support, see: https://github.com/libjpeg-turbo/libjpeg-turbo/issues/250
   # Disable environment variables usage, see: https://github.com/libjpeg-turbo/libjpeg-turbo/issues/600
   emcmake cmake -B_build -H. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$TARGET -DENABLE_STATIC=TRUE \