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dsvi/Cmake-For-Botan

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Cmake For Botan

This is CMakeLists.txt for the botan C++ crypto library.

It generates amalgamated build of botan (botan_all.h and botan_all.cpp) at configure time, and creates static library target named botan

Usage

Download the CMakeLists.txt and put it in a directory alongside a botan source archive, like that:

	extlibs/
		botan/
			CMakeLists.txt
			botan-2.15.0.tar.gz

Then you have to set variable BOTAN_ARCHIVE to the archive name and BOTAN_MODULES_LIST to list of modules you'd like to be included in amalgamated build. Add the CMakeLists.txt into your cmake build, for example:

set(BOTAN_ARCHIVE botan-2.15.0.tar.gz)
set(BOTAN_MODULES_LIST
    chacha20poly1305
    blake2
    system_rng
)
if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
    # add avx optimizations when building for the x86_64
    list(APPEND BOTAN_MODULES_LIST chacha_avx2)
endif()
add_subdirectory("extlibs/botan")

And use the target botan as dependency

target_link_libraries(ma-exe-or-lib PRIVATE botan)

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