export DLLs functions for MSVC with CMake

- Add 3 DEF files to export functions from Windows DLLs
  - Add gettimeofday to crypto/crypto.def (*1)
  - Remove gai_strerrorA from tls/tls.def (*1)
- Fix CMakeLists.txt to use DEF files as PRIVATE
- Change DLL import library file name since it duplicates with static library
- Ignore compiler warning C4267, and Edit CMAKE_C_FLAGS not to overwrite it (*1)
- Add USE_SHARED option to build openssl.exe with shared libraries (*1)

  (*1) recommended by @mcnameej

1 files changed, 4 insertions, 1 deletions

diff --git a/ssl/CMakeLists.txt b/ssl/CMakeLists.txt
index 0aac799..5866e8e 100644
--- a/ssl/CMakeLists.txt
+++ b/ssl/CMakeLists.txt
@@ -53,11 +53,14 @@ if (BUILD_SHARED)
         add_library(ssl STATIC $<TARGET_OBJECTS:ssl-objects>)
         add_library(ssl-shared SHARED $<TARGET_OBJECTS:ssl-objects>)
         if (WIN32)
+                target_sources(ssl-shared PRIVATE
+                        ${CMAKE_CURRENT_SOURCE_DIR}/ssl.def)
                 target_link_libraries(ssl-shared crypto-shared Ws2_32.lib)
                 set(SSL_POSTFIX -${SSL_MAJOR_VERSION})
         endif()
         set_target_properties(ssl-shared PROPERTIES
-                OUTPUT_NAME ssl${SSL_POSTFIX} ARCHIVE_OUTPUT_NAME ssl)
+                OUTPUT_NAME ssl${SSL_POSTFIX}
+                ARCHIVE_OUTPUT_NAME ssl${SSL_POSTFIX})
         set_target_properties(ssl-shared PROPERTIES VERSION ${SSL_VERSION}
                 SOVERSION ${SSL_MAJOR_VERSION})
         install(TARGETS ssl ssl-shared DESTINATION lib)