Use static version of libcurl.

Note that this will simplify the packaging/deployment

cmake/findDependencies.cmake

@@ -26,7 +26,7 @@ endif( )
 if( EXIV2_ENABLE_WEBREADY )
     set( ENABLE_WEBREADY 1 )
     if( EXIV2_ENABLE_CURL )
-        find_package( CURL REQUIRED)
+        find_package(CURL REQUIRED)
     endif()
 
     if( EXIV2_ENABLE_SSH )

conanfile.py

@@ -14,8 +14,8 @@ class Exiv2Conan(ConanFile):
                       )
 
     def configure(self):
-        if not os_info.is_macos:
-            self.options['libcurl'].shared = True
+        self.options['libcurl'].shared = False
+        self.options['libcurl'].with_openssl = True
         self.options['gtest'].shared = True
 
     def requirements(self):

src/CMakeLists.txt

@@ -239,10 +239,12 @@ if (EXIV2_ENABLE_WEBREADY)
 
     if( EXIV2_ENABLE_CURL )
         target_include_directories(exiv2lib SYSTEM PUBLIC ${CURL_INCLUDE_DIR} )
-        target_link_libraries(exiv2lib PUBLIC ${CURL_LIBRARIES})
         if (USING_CONAN)
+            target_link_libraries(exiv2lib PUBLIC ${CONAN_LIBS_LIBCURL} ${CONAN_LIBS_OPENSSL})
             target_compile_definitions(exiv2lib PUBLIC ${CONAN_COMPILE_DEFINITIONS_LIBCURL})
             target_link_libraries(exiv2lib PUBLIC ${CONAN_EXE_LINKER_FLAGS_LIBCURL})
+        else()
+            target_link_libraries(exiv2lib PUBLIC ${CURL_LIBRARIES})
         endif()
     endif()