fetch libcurl instead of build

cmake/BuildMyCurl.cmake

@@ -1,39 +1,73 @@
-set(LIBCURL_SOURCE_DIR ${CMAKE_SOURCE_DIR}/vendor/curl)
+include(FetchContent)
 
-find_package(Git QUIET)
-execute_process(
-  COMMAND ${GIT_EXECUTABLE} checkout curl-8_2_0
-  WORKING_DIRECTORY ${LIBCURL_SOURCE_DIR}
-  RESULT_VARIABLE GIT_SUBMOD_RESULT)
+set(LibCurl_VERSION "8.4.0-1")
+set(LibCurl_BASEURL "https://github.com/obs-ai/obs-ai-libcurl-dep/releases/download/${LibCurl_VERSION}")
 
-if(OS_MACOS)
-  set(CURL_USE_OPENSSL OFF)
-  set(CURL_USE_SECTRANSP ON)
-elseif(OS_WINDOWS)
-  set(CURL_USE_OPENSSL OFF)
-  set(CURL_USE_SCHANNEL ON)
-elseif(OS_LINUX)
-  add_compile_options(-fPIC)
-  set(CURL_USE_OPENSSL ON)
+if(${CMAKE_BUILD_TYPE} STREQUAL Release OR ${CMAKE_BUILD_TYPE} STREQUAL RelWithDebInfo)
+  set(LibCurl_BUILD_TYPE Release)
+else()
+  set(LibCurl_BUILD_TYPE Debug)
 endif()
-set(BUILD_CURL_EXE OFF)
-set(BUILD_SHARED_LIBS OFF)
-set(HTTP_ONLY ON)
-set(CURL_USE_LIBSSH2 OFF)
-set(CURL_DISABLE_FTP ON)
-set(CURL_DISABLE_LDAP ON)
-set(CURL_DISABLE_LDAPS ON)
-set(CURL_DISABLE_TELNET ON)
-set(CURL_DISABLE_MQTT ON)
-set(CURL_DISABLE_POP3 ON)
-set(CURL_DISABLE_RTMP ON)
-set(CURL_DISABLE_SMTP ON)
-set(CURL_DISABLE_GOPHER ON)
 
-add_subdirectory(${LIBCURL_SOURCE_DIR} EXCLUDE_FROM_ALL)
-if(OS_MACOS)
-  target_compile_options(
-    libcurl PRIVATE -Wno-error=ambiguous-macro -Wno-error=deprecated-declarations -Wno-error=unreachable-code
-                    -Wno-error=unused-parameter -Wno-error=unused-variable)
+if(APPLE)
+  if(LibCurl_BUILD_TYPE STREQUAL Release)
+    set(LibCurl_URL "${LibCurl_BASEURL}/libcurl-macos-master-Release.tar.gz")
+    set(LibCurl_HASH MD5=C89D8BC38E221737B7D5C9E5AE18C079)
+  else()
+    set(LibCurl_URL "${LibCurl_BASEURL}/libcurl-macos-master-Debug.tar.gz")
+    set(LibCurl_HASH MD5=F2A643B44D8626119DDB326C5AFFD704)
+  endif()
+elseif(MSVC)
+  if(LibCurl_BUILD_TYPE STREQUAL Release)
+    set(LibCurl_URL "${LibCurl_BASEURL}/libcurl-windows-master-Release.zip")
+    set(LibCurl_HASH MD5=81BC6A5004F0D52AA082A25B813B1362)
+  else()
+    set(LibCurl_URL "${LibCurl_BASEURL}/libcurl-windows-master-Debug.zip")
+    set(LibCurl_HASH MD5=8DC73477E3D427E2EA5124B57985BF47)
+  endif()
+else()
+  if(LibCurl_BUILD_TYPE STREQUAL Release)
+    set(LibCurl_URL "${LibCurl_BASEURL}/libcurl-linux-master-Release.tar.gz")
+    set(LibCurl_HASH MD5=EA9537A0BDBA1C53DC4A54FE767E90E8)
+  else()
+    set(LibCurl_URL "${LibCurl_BASEURL}/libcurl-linux-master-Debug.tar.gz")
+    set(LibCurl_HASH MD5=6F405CFA0398A04ADD1C2FCE9596F8B8)
+  endif()
 endif()
-include_directories(SYSTEM ${LIBCURL_SOURCE_DIR}/include)
+
+FetchContent_Declare(
+  libcurl_fetch
+  URL ${LibCurl_URL}
+  URL_HASH ${LibCurl_HASH})
+FetchContent_MakeAvailable(libcurl_fetch)
+
+if(MSVC)
+  set(libcurl_fetch_lib_location "${libcurl_fetch_SOURCE_DIR}/lib/libcurl.lib")
+  set(libcurl_fetch_link_libs "\$<LINK_ONLY:ws2_32>;\$<LINK_ONLY:advapi32>;\$<LINK_ONLY:crypt32>;\$<LINK_ONLY:bcrypt>")
+else()
+  find_package(ZLIB REQUIRED)
+  set(libcurl_fetch_lib_location "${libcurl_fetch_SOURCE_DIR}/lib/libcurl.a")
+  if(UNIX AND NOT APPLE)
+    find_package(OpenSSL REQUIRED)
+    set(libcurl_fetch_link_libs "\$<LINK_ONLY:OpenSSL::SSL>;\$<LINK_ONLY:OpenSSL::Crypto>;\$<LINK_ONLY:ZLIB::ZLIB>")
+  else()
+    set(libcurl_fetch_link_libs
+        "-framework SystemConfiguration;-framework Security;-framework CoreFoundation;-framework CoreServices;ZLIB::ZLIB"
+    )
+  endif()
+endif()
+
+# Create imported target
+add_library(libcurl STATIC IMPORTED)
+
+set_target_properties(
+  libcurl
+  PROPERTIES INTERFACE_COMPILE_DEFINITIONS "CURL_STATICLIB"
+             INTERFACE_INCLUDE_DIRECTORIES "${libcurl_fetch_SOURCE_DIR}/include"
+             INTERFACE_LINK_LIBRARIES "${libcurl_fetch_link_libs}")
+set_property(
+  TARGET libcurl
+  APPEND
+  PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
+set_target_properties(libcurl PROPERTIES IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "C" IMPORTED_LOCATION_RELEASE
+                                                                                       ${libcurl_fetch_lib_location})