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/tls/CMakeLists.txt b/tls/CMakeLists.txt
index 2377685..e522fe2 100644
--- a/tls/CMakeLists.txt
+++ b/tls/CMakeLists.txt
@@ -33,11 +33,14 @@ if (BUILD_SHARED)
         add_library(tls STATIC $<TARGET_OBJECTS:tls-objects>)
         add_library(tls-shared SHARED $<TARGET_OBJECTS:tls-objects>)
         if (WIN32)
+                target_sources(tls-shared PRIVATE
+                        ${CMAKE_CURRENT_SOURCE_DIR}/tls.def)
                 target_link_libraries(tls-shared ssl-shared crypto-shared Ws2_32.lib)
                 set(TLS_POSTFIX -${TLS_MAJOR_VERSION})
         endif()
         set_target_properties(tls-shared PROPERTIES
-                OUTPUT_NAME tls${TLS_POSTFIX} ARCHIVE_OUTPUT_NAME tls)
+                OUTPUT_NAME tls${TLS_POSTFIX}
+                ARCHIVE_OUTPUT_NAME tls${TLS_POSTFIX})
         set_target_properties(tls-shared PROPERTIES VERSION ${TLS_VERSION}
                 SOVERSION ${TLS_MAJOR_VERSION})
         install(TARGETS tls tls-shared DESTINATION lib)