./build.sh iOS build fails

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[*] make ios toolchain ffmpeg-armv7
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build_source: /Users/billy/Development/quartz/SGPlayer/build/source/iOS/ffmpeg-armv7
build_prefix: /Users/billy/Development/quartz/SGPlayer/build/build/iOS/ffmpeg-armv7/output

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[*] configurate ffmpeg
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[*] check OpenSSL
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[*] configure
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config:   --disable-gpl --disable-nonfree --enable-runtime-cpudetect --disable-gray --disable-swscale-alpha --disable-programs --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-avdevice --enable-avcodec --enable-avformat --enable-avutil --enable-swresample --enable-swscale --disable-postproc --enable-avfilter --disable-avresample --enable-network --disable-d3d11va --disable-dxva2 --disable-vaapi --disable-vdpau --disable-devices --disable-filters --disable-iconv --disable-audiotoolbox --enable-videotoolbox --disable-linux-perf --disable-bzlib --enable-cross-compile --disable-stripping --arch=armv7 --target-os=darwin --enable-static --disable-shared  --enable-pic --enable-neon --prefix=/Users/billy/Development/quartz/SGPlayer/build/build/iOS/ffmpeg-armv7/output  --enable-openssl xcrun -sdk iphoneos clang
xcrun -sdk iphoneos clang is unable to create an executable file.
C compiler test failed.

If you think configure made a mistake, make sure you are using the latest
version from Git.  If the latest version fails, report the problem to the
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "ffbuild/config.log" produced by configure as this will help
solve the problem.```

I'm running macOS 10.15 with Xcode11