Internally LIBRESSL_SKIP_INSTALL, if not set becomes ENABLE_LIBRESSL_INSTALL so this by default is enabled. defining LIBRESSL_SKIP_INSTALL before hand will disable all install() rules.
This is useful if another project includes and links to this statically.
I chose to add a prefix to avoid potential name collision because the options are cached globally.
If the installation is skipped, maybe it should also disable building apps? I didn't do that.
OBJECT collections in CMake don't generate any artifacts so these
are safe to hoist out and define globally.
library OBJECT targets are just a list of filenames. It can be useful for
other projects to include lists of sources directly regardless of build mode
(shared, static, or library).
- delete crypto.def and generate it from Symbols.list
- remove BIO_s_log since bss_log.c is not included on Windows
- add Windows specific symbols by crypto/crypto_win.list
- Add 3 DEF files to export functions from Windows DLLs
- Add gettimeofday to crypto/crypto.def (*1)
- Remove gai_strerrorA from tls/tls.def (*1)
- Fix CMakeLists.txt to use DEF files as PRIVATE
- Change DLL import library file name since it duplicates with static library
- Ignore compiler warning C4267, and Edit CMAKE_C_FLAGS not to overwrite it (*1)
- Add USE_SHARED option to build openssl.exe with shared libraries (*1)
(*1) recommended by @mcnameej
- add cmake build options as configure provides
* -DENABLE_ASM (default ON)
* -DENABLE_EXTRATESTS (default OFF)
* -DENABLE_NC (default OFF)
* -DOPENSSLDIR (default ${CMAKE_INSTALL_PREFIX}/etc/ssl)
- add biotest and pidwraptest if ENABLE_EXTRATESTS is ON
- add compiler flag `-fno-common` if CMAKE_SYSTEM_NAME is Darwin
to prevent link error Undefined symbols "_OPENSSL_ia32cap_P"
