wolfSSL is happy to announce support for user_settings.h in CMake builds in wolfSSL 4.7.0. To enable this feature, add -DWOLFSSL_USER_SETTINGS=yes to your cmake command and proceed to use user_settings.h as you normally would. For more about user_settings.h, continue reading below.
When building for embedded devices the best way to configure the wolfSSL library is to create a header named “user_settings.h”. Then, at the global level in your application define WOLFSSL_USER_SETTINGS so that when <wolfssl/wolfcrypt/settings.h> is included throughout the library the user_settings.h header is also pulled in. The application should include <wolfssl/wolfcrypt/settings.h>, BEFORE all other wolfSSL headers. A good example user_settings.h for getting started on an embedded project can be found at wolfssl-4.7.0/IDE/GCC-ARM/Header/user_settings.h. That example is well commented and provides a good starting point for any embedded project, even non-ARM based ones!
If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.