Kilian

Did you use system curl? In order to install cpr, you have to use system curl.

It seems to me like the libcurl version of Ubuntu 14.04 is propably to old. You can try to use a fetch content curl instead

Would you mind creating a option for this. E.g. `CPR_USE_BOOST_FILESYSTEM`

No, there is no need for a new branch

All looks good. Thanks for your work (and sorry for the many iterations). I will merge after the CI passes.

Regarding your Issue, your are definitely on the right track. OpenSSL with your configuration only required for testing. Therefore setting `CPR_BUILD_TESTS_SSL=OFF` should resolve this Issue. I would try removing the...

Is OPENSSL for Android installed?

Okay, can you please upload the output from the CMake configure run. But from what I see I would assume that cpr does not find the prebuild libcurl, and therefore...

Maybe this can help installing OpenSSL for your android toolchain. https://wiki.openssl.org/index.php/Android