From 382692d068d5b034518b89de69f013ab92c28857 Mon Sep 17 00:00:00 2001
From: Alexander Batalov <alex.batalov@gmail.com>
Date: Sun, 9 Feb 2025 13:31:41 +0300
Subject: [PATCH] Add option to use vendored vs. system dependencies

---
 .github/workflows/ci-build.yml | 2 ++
 CMakeLists.txt                 | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index aa9e368c..425aa242 100644
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -176,6 +176,7 @@ jobs:
             -B build \
             -D CMAKE_BUILD_TYPE=RelWithDebInfo \
             -D CMAKE_TOOLCHAIN_FILE=cmake/toolchain/Linux32.cmake \
+            -D FALLOUT_VENDORED=OFF \
             # EOL
 
       - name: Configure (x64)
@@ -184,6 +185,7 @@ jobs:
           cmake \
             -B build \
             -D CMAKE_BUILD_TYPE=RelWithDebInfo \
+            -D FALLOUT_VENDORED=OFF \
             # EOL
 
       - name: Build
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b237959a..17fcf1e3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,6 +20,8 @@ set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED YES)
 set(CMAKE_CXX_EXTENSIONS NO)
 
+option(FALLOUT_VENDORED "Use vendored third-party libraries" ON)
+
 if(ANDROID)
     add_library(${EXECUTABLE_NAME} SHARED)
 else()
@@ -363,7 +365,7 @@ endif()
 add_subdirectory("third_party/fpattern")
 target_link_libraries(${EXECUTABLE_NAME} fpattern::fpattern)
 
-if((NOT ${CMAKE_SYSTEM_NAME} MATCHES "Linux") AND (NOT ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD") AND (NOT ${CMAKE_SYSTEM_NAME} MATCHES "OpenBSD"))
+if(FALLOUT_VENDORED)
     add_subdirectory("third_party/zlib")
     add_subdirectory("third_party/sdl2")
 else()