diff options
Diffstat (limited to 'cmake/SelectHashes.cmake')
| -rw-r--r-- | cmake/SelectHashes.cmake | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/cmake/SelectHashes.cmake b/cmake/SelectHashes.cmake new file mode 100644 index 0000000..5c007e5 --- /dev/null +++ b/cmake/SelectHashes.cmake @@ -0,0 +1,104 @@ +# Select a hash backend + +include(SanitizeBool) + +# USE_SHA1=CollisionDetection(ON)/HTTPS/Generic/OFF +sanitizebool(USE_SHA1) +sanitizebool(USE_SHA256) + +# sha1 + +if(USE_SHA1 STREQUAL ON) + SET(USE_SHA1 "CollisionDetection") +elseif(USE_SHA1 STREQUAL "HTTPS") + if(USE_HTTPS STREQUAL "SecureTransport") + set(USE_SHA1 "CommonCrypto") + elseif(USE_HTTPS STREQUAL "Schannel") + set(USE_SHA1 "Win32") + elseif(USE_HTTPS STREQUAL "WinHTTP") + set(USE_SHA1 "Win32") + elseif(USE_HTTPS) + set(USE_SHA1 ${USE_HTTPS}) + else() + set(USE_SHA1 "CollisionDetection") + endif() +endif() + +if(USE_SHA1 STREQUAL "CollisionDetection") + set(GIT_SHA1_COLLISIONDETECT 1) +elseif(USE_SHA1 STREQUAL "OpenSSL") + set(GIT_SHA1_OPENSSL 1) +elseif(USE_SHA1 STREQUAL "OpenSSL-Dynamic") + set(GIT_SHA1_OPENSSL 1) + set(GIT_SHA1_OPENSSL_DYNAMIC 1) + list(APPEND LIBGIT2_SYSTEM_LIBS dl) +elseif(USE_SHA1 STREQUAL "CommonCrypto") + set(GIT_SHA1_COMMON_CRYPTO 1) +elseif(USE_SHA1 STREQUAL "mbedTLS") + set(GIT_SHA1_MBEDTLS 1) +elseif(USE_SHA1 STREQUAL "Win32") + set(GIT_SHA1_WIN32 1) +else() + message(FATAL_ERROR "Asked for unknown SHA1 backend: ${USE_SHA1}") +endif() + +# sha256 + +if(USE_SHA256 STREQUAL ON AND USE_HTTPS) + SET(USE_SHA256 "HTTPS") +elseif(USE_SHA256 STREQUAL ON) + SET(USE_SHA256 "Builtin") +endif() + +if(USE_SHA256 STREQUAL "HTTPS") + if(USE_HTTPS STREQUAL "SecureTransport") + set(USE_SHA256 "CommonCrypto") + elseif(USE_HTTPS STREQUAL "Schannel") + set(USE_SHA256 "Win32") + elseif(USE_HTTPS STREQUAL "WinHTTP") + set(USE_SHA256 "Win32") + elseif(USE_HTTPS) + set(USE_SHA256 ${USE_HTTPS}) + endif() +endif() + +if(USE_SHA256 STREQUAL "Builtin") + set(GIT_SHA256_BUILTIN 1) +elseif(USE_SHA256 STREQUAL "OpenSSL") + set(GIT_SHA256_OPENSSL 1) +elseif(USE_SHA256 STREQUAL "OpenSSL-Dynamic") + set(GIT_SHA256_OPENSSL 1) + set(GIT_SHA256_OPENSSL_DYNAMIC 1) + list(APPEND LIBGIT2_SYSTEM_LIBS dl) +elseif(USE_SHA256 STREQUAL "CommonCrypto") + set(GIT_SHA256_COMMON_CRYPTO 1) +elseif(USE_SHA256 STREQUAL "mbedTLS") + set(GIT_SHA256_MBEDTLS 1) +elseif(USE_SHA256 STREQUAL "Win32") + set(GIT_SHA256_WIN32 1) +else() + message(FATAL_ERROR "Asked for unknown SHA256 backend: ${USE_SHA256}") +endif() + +# add library requirements +if(USE_SHA1 STREQUAL "OpenSSL" OR USE_SHA256 STREQUAL "OpenSSL") + if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD") + list(APPEND LIBGIT2_PC_LIBS "-lssl") + else() + list(APPEND LIBGIT2_PC_REQUIRES "openssl") + endif() +endif() + +if(USE_SHA1 STREQUAL "mbedTLS" OR USE_SHA256 STREQUAL "mbedTLS") + list(APPEND LIBGIT2_SYSTEM_INCLUDES ${MBEDTLS_INCLUDE_DIR}) + list(APPEND LIBGIT2_SYSTEM_LIBS ${MBEDTLS_LIBRARIES}) + # mbedTLS has no pkgconfig file, hence we can't require it + # https://github.com/ARMmbed/mbedtls/issues/228 + # For now, pass its link flags as our own + list(APPEND LIBGIT2_PC_LIBS ${MBEDTLS_LIBRARIES}) +endif() + +# notify feature enablement + +add_feature_info(SHA1 ON "using ${USE_SHA1}") +add_feature_info(SHA256 ON "using ${USE_SHA256}") |