Unable to compile in macOS 11.3 (20E232) Xcode 12.5 (12E262)

[wangxiaoxiang]

bash <(curl -s "https://raw.githubusercontent.com/markus-perl/ffmpeg-build-script/master/web-install.sh?v1")
ffmpeg-build-script-downloader v0.1
=========================================

First we create the ffmpeg build directory ffmpeg-build
Now we download and execute the build script

ffmpeg-build-script v1.24
=========================

Using 12 make jobs simultaneously.

building pkg-config
=======================
pkg-config-0.29.2.tar.gz has already downloaded.
Extracted pkg-config-0.29.2.tar.gz
$ ./configure --silent --prefix=/Users/wangxiaoxiang/Open Sources/ffmpeg_macos_build/ffmpeg-build/workspace --with-pc-path=/Users/wangxiaoxiang/Open Sources/ffmpeg_macos_build/ffmpeg-build/workspace/lib/pkgconfig --with-internal-glib
$ make -j 12
/Applications/Xcode.app/Contents/Developer/usr/bin/make  all-recursive
Making all in glib
/Applications/Xcode.app/Contents/Developer/usr/bin/make  all-recursive
Making all in .
make[4]: Nothing to be done for `all-am'.
Making all in m4macros
/Applications/Xcode.app/Contents/Developer/usr/bin/make  all-am
make[5]: Nothing to be done for `all-am'.
Making all in glib
  GEN      glibconfig-stamp
config.status: executing glib/glibconfig.h commands
config.status: glib/glibconfig.h is unchanged
/Applications/Xcode.app/Contents/Developer/usr/bin/make  all-recursive
Making all in libcharset
/Applications/Xcode.app/Contents/Developer/usr/bin/make  all-am
  CC       libcharset_la-localcharset.lo
  GEN      ref-add.sed
  GEN      charset.alias
  GEN      ref-del.sed
clang: error: no such file or directory: 'Sources/ffmpeg_macos_build/ffmpeg-build/workspace/lib"'
make[7]: *** [libcharset_la-localcharset.lo] Error 1
make[6]: *** [all] Error 2
make[5]: *** [all-recursive] Error 1
make[4]: *** [all] Error 2
make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

Failed to Execute make -j 12