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cmake : add option to build and link LibreSSL #17552

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cmake : add option to build and link LibreSSL #17552

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44 changes: 43 additions & 1 deletion vendor/cpp-httplib/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -22,8 +22,9 @@ target_compile_definitions(${TARGET} PRIVATE
CPPHTTPLIB_TCP_NODELAY=1
)

set(OPENSSL_NO_ASM ON CACHE BOOL "Disable OpenSSL ASM code when building BoringSSL or LibreSSL")

if (LLAMA_BUILD_BORINGSSL)
set(OPENSSL_NO_ASM ON CACHE BOOL "Disable OpenSSL ASM code (BoringSSL)")
set(FIPS OFF CACHE BOOL "Enable FIPS (BoringSSL)")

set(BORINGSSL_GIT "https://boringssl.googlesource.com/boringssl" CACHE STRING "BoringSSL git repository")
Expand Down Expand Up @@ -64,6 +65,47 @@ if (LLAMA_BUILD_BORINGSSL)
set(CPPHTTPLIB_OPENSSL_SUPPORT TRUE)
target_link_libraries(${TARGET} PUBLIC ssl crypto)

elseif (LLAMA_BUILD_LIBRESSL)
set(LIBRESSL_VERSION "4.2.1" CACHE STRING "LibreSSL version")

message(STATUS "Fetching LibreSSL version ${LIBRESSL_VERSION}")

set(LIBRESSL_ARGS
URL "https://cdn.openbsd.org/pub/OpenBSD/LibreSSL/libressl-${LIBRESSL_VERSION}.tar.gz"
)
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.24)
list(APPEND LIBRESSL_ARGS DOWNLOAD_EXTRACT_TIMESTAMP TRUE)
endif()

if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.28)
list(APPEND LIBRESSL_ARGS EXCLUDE_FROM_ALL)
endif()

include(FetchContent)
FetchContent_Declare(libressl ${LIBRESSL_ARGS})

set(SAVED_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS})
set(SAVED_BUILD_TESTING ${BUILD_TESTING})

set(BUILD_SHARED_LIBS OFF)
set(BUILD_TESTING OFF)

if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.28)
FetchContent_MakeAvailable(libressl)
else()
FetchContent_GetProperties(libressl)
if(NOT libressl_POPULATED)
FetchContent_Populate(libressl)
add_subdirectory(${libressl_SOURCE_DIR} ${libressl_BINARY_DIR} EXCLUDE_FROM_ALL)
endif()
endif()

set(BUILD_SHARED_LIBS ${SAVED_BUILD_SHARED_LIBS})
set(BUILD_TESTING ${SAVED_BUILD_TESTING})

set(CPPHTTPLIB_OPENSSL_SUPPORT TRUE)
target_link_libraries(${TARGET} PUBLIC ssl crypto)

elseif (LLAMA_OPENSSL)
find_package(OpenSSL)
if (OpenSSL_FOUND)
Expand Down
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