diff --git a/external/openal/CMakeLists.txt b/external/openal/CMakeLists.txt
index 4cd26c2..3f91816 100644
--- a/external/openal/CMakeLists.txt
+++ b/external/openal/CMakeLists.txt
@@ -8,9 +8,15 @@ add_library(external_openal INTERFACE IMPORTED GLOBAL)
 add_library(desktop-app::external_openal ALIAS external_openal)
 
 if (DESKTOP_APP_USE_PACKAGED)
-    find_package(OpenAL REQUIRED)
-    target_include_directories(external_openal INTERFACE ${OPENAL_INCLUDE_DIR})
-    target_link_libraries(external_openal INTERFACE ${OPENAL_LIBRARY})
+    find_package(OpenAL)
+    if (OPENAL_FOUND)
+        target_include_directories(external_openal INTERFACE ${OPENAL_INCLUDE_DIR})
+        target_link_libraries(external_openal INTERFACE ${OPENAL_LIBRARY})
+    else()
+        find_package(PkgConfig REQUIRED)
+        pkg_check_modules(OPENAL REQUIRED IMPORTED_TARGET openal)
+        target_link_libraries(external_openal INTERFACE PkgConfig::OPENAL)
+    endif()
 elseif (WIN32)
     target_include_directories(external_openal SYSTEM
     INTERFACE
diff --git a/external/rlottie/CMakeLists.txt b/external/rlottie/CMakeLists.txt
index cf0d27f..d2e0479 100644
--- a/external/rlottie/CMakeLists.txt
+++ b/external/rlottie/CMakeLists.txt
@@ -8,9 +8,14 @@ if (DESKTOP_APP_USE_PACKAGED_RLOTTIE AND NOT DESKTOP_APP_USE_PACKAGED_LAZY)
     add_library(external_rlottie INTERFACE IMPORTED GLOBAL)
     add_library(desktop-app::external_rlottie ALIAS external_rlottie)
 
-    find_package(PkgConfig REQUIRED)
-    pkg_check_modules(RLOTTIE REQUIRED IMPORTED_TARGET rlottie)
-    target_link_libraries(external_rlottie INTERFACE PkgConfig::RLOTTIE)
+    find_package(rlottie)
+    if (rlottie_FOUND)
+        target_link_libraries(external_rlottie INTERFACE rlottie::rlottie)
+    else()
+        find_package(PkgConfig REQUIRED)
+        pkg_check_modules(RLOTTIE REQUIRED IMPORTED_TARGET rlottie)
+        target_link_libraries(external_rlottie INTERFACE PkgConfig::RLOTTIE)
+    endif()
 else()
     add_library(external_rlottie OBJECT)
     add_library(desktop-app::external_rlottie ALIAS external_rlottie)