Fix coeurl lookup

CMakeLists.txt

@@ -191,20 +191,22 @@ if(USE_BUNDLED_COEURL)
 	FetchContent_MakeAvailable(coeurl)
 	set(COEURL_TARGET_NAME coeurl::coeurl)
 else()
-	# FindPkgConfig sets this as a cache variable, which breaks find_package
-	if(DEFINED coeurl_FOUND)
-		unset(coeurl_FOUND CACHE)
+	find_package(PkgConfig)
+	pkg_check_modules(coeurl IMPORTED_TARGET coeurl>=0.1.1)
+	if (TARGET PkgConfig::coeurl)
+		set(COEURL_TARGET_NAME PkgConfig::coeurl)
 	endif()
+endif()
+
+if(NOT TARGET PkgConfig::coeurl)
 	find_package(coeurl 0.1.1 CONFIG)
-	if (coeurl_FOUND)
+	if (TARGET coeurl::coeurl)
 		set(COEURL_TARGET_NAME coeurl::coeurl)
 	endif()
 endif()
 
-if(NOT COEURL_TARGET_NAME)
-	find_package(PkgConfig REQUIRED)
-	pkg_check_modules(coeurl REQUIRED IMPORTED_TARGET coeurl>=0.1.1)
-	set(COEURL_TARGET_NAME PkgConfig::coeurl)
+if (NOT COEURL_TARGET_NAME)
+	message(ERROR "Couldn't find coeurl")
 endif()
 
 #