CMake: Fix HAVE_openssl config test when using static OpenSSL

When using static OpenSSL, HAVE_openssl test will fail, because of unresolved external symbols. These symbols are from Ws2_32.lib and Crypt32.lib, which CMake does not link by default. In qmake build system, we can use OPENSSL_LIBS variable to specify these system libraries. But there is no similar variable in CMake build system. Accordingly, we should let OpenSSL::Crypto target link these libraries. Upstream issue: https://gitlab.kitware.com/cmake/cmake/-/issues/19263 Pick-to: 6.0 Change-Id: I5f27790b251d0a0f71aaf2aed2b933aeb3326f1f Reviewed-by: Craig Scott <[email protected]> Reviewed-by: Joerg Bornemann <[email protected]>
liunan9527 · Jan 28, 2021 · 29a58af · 29a58af
1 parent 40bfbe7
commit 29a58af
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/cmake/FindWrapOpenSSL.cmake b/cmake/FindWrapOpenSSL.cmake
@@ -11,6 +11,18 @@ set(WrapOpenSSL_FOUND OFF)
 find_package(WrapOpenSSLHeaders ${WrapOpenSSL_FIND_VERSION})
 
 if(OpenSSL_FOUND)
+    if(WIN32)
+        get_target_property(libType OpenSSL::Crypto TYPE)
+        if(libType STREQUAL "ALIAS")
+            get_target_property(writableLib OpenSSL::Crypto ALIASED_TARGET)
+        else()
+            set(writableLib OpenSSL::Crypto)
+        endif()
+        target_link_libraries(${writableLib} INTERFACE Ws2_32 Crypt32)
+        unset(libType)
+        unset(writableLib)
+    endif()
+
     set(WrapOpenSSL_FOUND ON)
 
     add_library(WrapOpenSSL::WrapOpenSSL INTERFACE IMPORTED)