openssl 编译成功了，但ffmpeg我编译失败了，
/Users/shengsheng/Library/Android/android-ndk-r20b/toolchains/llvm/prebuilt/darwin-x86_64/bin/armv7a-linux-androideabi21-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.libera.chat.
Include the log file "ffbuild/config.log" produced by configure as this will help
solve the problem.
+ make clean all
Makefile:2: ffbuild/config.mak: No such file or directory
Makefile:42: /tools/Makefile: No such file or directory
Makefile:43: /ffbuild/common.mak: No such file or directory
FFmpeg和OpenSSL的编译与使用引言 目前在学习FFmpeg的使用，肯定是要从源码编译开始一步步摸啦，编译过程中也是遇到了大大小小很多问题，查到的资料基本也都是比较老旧的版本，经过各种试错吧，终于是编译成功...
