From b18c1d00ada5a3ae9428e095fad1486ecbac0a64 Mon Sep 17 00:00:00 2001
From: Albrecht Schlosser <albrechts.fltk@online.de>
Date: Fri, 30 Apr 2021 12:46:58 +0200
Subject: [PATCH] Fix build with Cairo for CMake < 3.13

target_link_directories() was introduced in CMake 3.13
---
 CMake/fl_create_example.cmake | 6 +++++-
 fluid/CMakeLists.txt          | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/CMake/fl_create_example.cmake b/CMake/fl_create_example.cmake
index ad95a9e70..72819ebea 100644
--- a/CMake/fl_create_example.cmake
+++ b/CMake/fl_create_example.cmake
@@ -116,7 +116,11 @@ macro (CREATE_EXAMPLE NAME SOURCES LIBRARIES)
   target_link_libraries   (${TARGET_NAME} ${LIBRARIES})
 
   if (FLTK_HAVE_CAIRO)
-    target_link_directories (${TARGET_NAME} PUBLIC ${PKG_CAIRO_LIBRARY_DIRS})
+    if (CMAKE_VERSION VERSION_LESS "3.13")
+      link_directories (${TARGET_NAME} PUBLIC ${PKG_CAIRO_LIBRARY_DIRS})
+    else()
+      target_link_directories (${TARGET_NAME} PUBLIC ${PKG_CAIRO_LIBRARY_DIRS})
+    endif()
   endif (FLTK_HAVE_CAIRO)
 
   if (ICON_PATH)
diff --git a/fluid/CMakeLists.txt b/fluid/CMakeLists.txt
index 0c741485c..1ca8dd8ef 100644
--- a/fluid/CMakeLists.txt
+++ b/fluid/CMakeLists.txt
@@ -68,7 +68,11 @@ endif (APPLE AND (NOT OPTION_APPLE_X11))
 
 target_link_libraries (fluid fltk fltk_images fltk_forms)
 if (FLTK_HAVE_CAIRO)
-  target_link_directories (fluid PUBLIC ${PKG_CAIRO_LIBRARY_DIRS})
+  if (CMAKE_VERSION VERSION_LESS "3.13")
+    link_directories (fluid PUBLIC ${PKG_CAIRO_LIBRARY_DIRS})
+  else()
+    target_link_directories (fluid PUBLIC ${PKG_CAIRO_LIBRARY_DIRS})
+  endif()
 endif (FLTK_HAVE_CAIRO)
 
 # install fluid