From b91db00d9164e45a51e19ec20ee9bed6b357b8e9 Mon Sep 17 00:00:00 2001
From: Albrecht Schlosser <albrechts.fltk@online.de>
Date: Mon, 20 Dec 2021 19:18:38 +0100
Subject: CMake: export Cairo include directories (issue #350)

If a user project is built using a FLTK library generated by CMake
with Cairo support then the CMake variable FLTK_INCLUDE_DIRECTORIES
now includes the required Cairo include directories.
---
 CMake/export.cmake  | 3 +++
 CMake/install.cmake | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/CMake/export.cmake b/CMake/export.cmake
index 81f6e08d1..b67b3d739 100644
--- a/CMake/export.cmake
+++ b/CMake/export.cmake
@@ -48,6 +48,9 @@ configure_file (
 
 # generate FLTKConfig.cmake for build directory use
 set (INCLUDE_DIRS "${FLTK_INCLUDE_DIRS}")
+if (FLTK_HAVE_CAIRO)
+  list (APPEND INCLUDE_DIRS ${PKG_CAIRO_INCLUDE_DIRS})
+endif ()
 set (CONFIG_PATH ${CMAKE_CURRENT_BINARY_DIR})
 
 configure_file(
diff --git a/CMake/install.cmake b/CMake/install.cmake
index b6b18c374..0d1c35f16 100644
--- a/CMake/install.cmake
+++ b/CMake/install.cmake
@@ -50,6 +50,9 @@ endif (OPTION_CREATE_LINKS)
 
 # generate FLTKConfig.cmake for installed directory use
 set (INCLUDE_DIRS ${CMAKE_INSTALL_PREFIX}/include)
+if (FLTK_HAVE_CAIRO)
+  list (APPEND INCLUDE_DIRS ${PKG_CAIRO_INCLUDE_DIRS})
+endif ()
 
 set (CONFIG_PATH ${CMAKE_INSTALL_PREFIX}/${FLTK_CONFIG_PATH})
 
-- 
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