Check OLP_SDK_ENABLE_ANDROID_CURL for Android only (#1363)

Make sure that OLP_SDK_ENABLE_ANDROID_CURL doesn't affect other
platforms, as it should be possible to turn on this option without
additional checks for platform.

Relates-To: OLPSUP-20966
Signed-off-by: Andrey Kashcheev <ext-andrey.kashcheev@here.com>

Author: andrey-kashcheev

external/CMakeLists.txt

@@ -104,7 +104,7 @@ if(NOT TARGET Boost AND NOT Boost_FOUND)
     set(Boost_LIBRARY_DIR ${EXTERNAL_BOOST_ROOT_LIB} PARENT_SCOPE)
 endif()
 
-if(OLP_SDK_ENABLE_ANDROID_CURL)
+if(ANDROID AND OLP_SDK_ENABLE_ANDROID_CURL)
     find_package(CURL 7.52.0 QUIET)
     if(NOT TARGET CURL AND NOT CURL_FOUND)
         add_subdirectory(curl)

olp-cpp-sdk-core/cmake/curl.cmake

@@ -28,7 +28,7 @@ if(CURL_FOUND AND NOT NETWORK_NO_CURL)
     endif(APPLE)
     include_directories(${CURL_INCLUDE_DIRS})
 
-    if(OLP_SDK_ENABLE_ANDROID_CURL)
+    if(ANDROID AND OLP_SDK_ENABLE_ANDROID_CURL)
         add_definitions(-DOLP_SDK_ENABLE_ANDROID_CURL)
     endif()