From e94d5864ae113b49b1fc40413bb82cb4cd42c7a3 Mon Sep 17 00:00:00 2001
From: Christian Beier <info@christianbeier.net>
Date: Mon, 6 Jan 2025 20:14:49 +0100
Subject: [PATCH] build: require GTK3 for non-Apple Unix at build time

Closes #254
---
 src/gui/CMakeLists.txt | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
index 729df9d5..dbf248f3 100644
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -34,12 +34,13 @@ add_library(MultiVNCgui STATIC ${MultiVNCgui_SRCS})
 #
 # dependencies
 #
-FIND_PACKAGE(PkgConfig)
-PKG_CHECK_MODULES(GTK3 gtk+-3.0)
-include_directories(${GTK3_INCLUDE_DIRS})
-target_link_directories(MultiVNCgui INTERFACE ${GTK3_LIBRARY_DIRS})
-target_link_libraries(MultiVNCgui ${GTK3_LIBRARIES})
-
+if(UNIX AND NOT APPLE)
+  FIND_PACKAGE(PkgConfig)
+  PKG_CHECK_MODULES(GTK3 REQUIRED gtk+-3.0)
+  include_directories(${GTK3_INCLUDE_DIRS})
+  target_link_directories(MultiVNCgui INTERFACE ${GTK3_LIBRARY_DIRS})
+  target_link_libraries(MultiVNCgui ${GTK3_LIBRARIES})
+endif()
 
 
 #original Makefile.am contents follow: