OpenSSL for Android (x32/x64)
These scripts do all for you from downloading and extracting OpenSSL to generating static libraries for arm64-v8a and armeabi-v7a (optionally, other platforms)
Please check build-all-arch.sh and setenv-android-mod.sh for more details or adjustments.
By default, OpenSSL version is set to 1.0.2s, after which the API was significantly changed and became incompatible with older projects.
Also, pay attention to the byte order flag (Big Endian/Little Endian). Here it is set to -DL_ENDIAN.
If misconfigured, might create issues, e.g. error:04091068:rsa routines:INT_RSA_VERIFY:bad signature
or worse. In my particular case, the flag was initially set to -DB_ENDIAN, so secure web requests
with libcurl were broken. It might be different in your situation.
With minor changes it's possible to produce shared libraries as well.
Given that, open terminal and run:
cd <path/to/this/repo>
chmod 755 ./build-all-arch.sh
chmod 755 ./setenv-android-mod.sh
export ANDROID_NDK_ROOT=/your/path/to/_android/android-ndk-r10e
./build-all-arch.sh