Merge pull request libgit2#6464 from libgit2/ethomson/openssl3

Support OpenSSL3: add OpenSSL deprection warning compatibility flag

Author: ethomson

deps/ntlmclient/CMakeLists.txt

@@ -20,11 +20,13 @@ if(USE_HTTPS STREQUAL "SecureTransport")
 	set_source_files_properties("crypt_commoncrypto.c" COMPILE_FLAGS "-Wno-deprecated")
 elseif(USE_HTTPS STREQUAL "OpenSSL")
 	add_definitions(-DCRYPT_OPENSSL)
+	add_definitions(-DOPENSSL_API_COMPAT=0x10100000L)
 	include_directories(${OPENSSL_INCLUDE_DIR})
 	set(SRC_NTLMCLIENT_CRYPTO "crypt_openssl.c" "crypt_openssl.h")
 elseif(USE_HTTPS STREQUAL "OpenSSL-Dynamic")
 	add_definitions(-DCRYPT_OPENSSL)
 	add_definitions(-DCRYPT_OPENSSL_DYNAMIC)
+	add_definitions(-DOPENSSL_API_COMPAT=0x10100000L)
 	set(SRC_NTLMCLIENT_CRYPTO "crypt_openssl.c" "crypt_openssl.h")
 elseif(USE_HTTPS STREQUAL "mbedTLS")
 	add_definitions(-DCRYPT_MBEDTLS)

src/util/CMakeLists.txt

@@ -38,6 +38,7 @@ if(USE_SHA1 STREQUAL "CollisionDetection")
         target_compile_definitions(util PRIVATE SHA1DC_CUSTOM_INCLUDE_SHA1_C=\"git2_util.h\")
         target_compile_definitions(util PRIVATE SHA1DC_CUSTOM_INCLUDE_UBC_CHECK_C=\"git2_util.h\")
 elseif(USE_SHA1 STREQUAL "OpenSSL" OR USE_SHA1 STREQUAL "OpenSSL-Dynamic")
+	add_definitions(-DOPENSSL_API_COMPAT=0x10100000L)
 	file(GLOB UTIL_SRC_SHA1 hash/openssl.*)
 elseif(USE_SHA1 STREQUAL "CommonCrypto")
 	file(GLOB UTIL_SRC_SHA1 hash/common_crypto.*)
@@ -54,6 +55,7 @@ list(SORT UTIL_SRC_SHA1)
 if(USE_SHA256 STREQUAL "Builtin")
 	file(GLOB UTIL_SRC_SHA256 hash/builtin.* hash/rfc6234/*)
 elseif(USE_SHA256 STREQUAL "OpenSSL" OR USE_SHA256 STREQUAL "OpenSSL-Dynamic")
+	add_definitions(-DOPENSSL_API_COMPAT=0x10100000L)
 	file(GLOB UTIL_SRC_SHA256 hash/openssl.*)
 elseif(USE_SHA256 STREQUAL "CommonCrypto")
 	file(GLOB UTIL_SRC_SHA256 hash/common_crypto.*)