Have open source use the static openssl libraries

For the packaging step, it is expecting the libraries to be the static versions, so use those instead. Corrects the one case that was using only the one library, when both are now needed as a result. Tests build and run on all desktop platforms with this change.

PiperOrigin-RevId: 291441343

Author: a-maurice

CMakeLists.txt

@@ -120,6 +120,18 @@ endif()
 
 # Some of the external libraries are not used for mobile.
 if (NOT ANDROID AND NOT IOS)
+  # Use the static versions of the OpenSSL libraries.
+  set(OPENSSL_USE_STATIC_LIBS TRUE)
+  if (MSVC)
+    # Get the correct version of the OpenSSL libraries based on building for MT.
+    if ("${CMAKE_CXX_FLAGS_DEBUG}" MATCHES "/MT" OR
+        "${CMAKE_CXX_FLAGS_RELEASE}" MATCHES "/MT")
+      set(OPENSSL_MSVC_STATIC_RT TRUE)
+    else()
+      set(OPENSSL_MSVC_STATIC_RT FALSE)
+    endif()
+  endif()
+
   # Build curl as a static library
   set(CURL_STATICLIB ON CACHE BOOL "")
   if (WIN32)
@@ -185,7 +197,7 @@ if (NOT ANDROID AND NOT IOS)
     )
     target_link_libraries(libuWS
       PRIVATE
-        ${OPENSSL_SSL_LIBRARY}
+        ${OPENSSL_LIBRARIES}
         uv_a
         zlibstatic
     )

app/rest/CMakeLists.txt

@@ -76,6 +76,7 @@ target_link_libraries(firebase_rest_lib
     flatbuffers
     libcurl
     zlibstatic
+    ${CMAKE_DL_LIBS}
 )
 # Automatically include headers that might not be declared.
 if(MSVC)