From 6b9e7b2eec23350b68430567274307273107b7f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Bartoletti?= <loic.bartoletti@oslandia.com>
Date: Wed, 21 Sep 2022 16:17:32 +0200
Subject: [PATCH] CMake: Add FindCairo.cmake to fix build on FreeBSD

---
 CMakeLists.txt        |  2 +-
 cmake/FindCairo.cmake | 75 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+), 1 deletion(-)
 create mode 100644 cmake/FindCairo.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f82e085..5a01255 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -277,7 +277,7 @@ else()
     find_package(ZLIB REQUIRED)
     find_package(PNG REQUIRED)
     find_package(Freetype REQUIRED)
-    pkg_check_modules(CAIRO REQUIRED cairo)
+    find_package(Cairo REQUIRED)
 endif()
 
 # GUI dependencies
diff --git a/cmake/FindCairo.cmake b/cmake/FindCairo.cmake
new file mode 100644
index 0000000..d0130ad
--- /dev/null
+++ b/cmake/FindCairo.cmake
@@ -0,0 +1,75 @@
+# - Try to find Cairo
+# Once done, this will define
+#
+#  CAIRO_FOUND - system has Cairo
+#  CAIRO_INCLUDE_DIRS - the Cairo include directories
+#  CAIRO_LIBRARIES - link these to use Cairo
+#
+# Copyright (C) 2012 Raphael Kubo da Costa <rakuco@webkit.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1.  Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+# 2.  Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND ITS CONTRIBUTORS ``AS
+# IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR ITS
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+find_package(PkgConfig)
+pkg_check_modules(PC_CAIRO QUIET cairo)
+
+find_path(CAIRO_INCLUDE_DIRS
+    NAMES cairo.h
+    HINTS ${PC_CAIRO_INCLUDEDIR}
+          ${PC_CAIRO_INCLUDE_DIRS}
+    PATH_SUFFIXES cairo
+)
+
+find_library(CAIRO_LIBRARIES
+    NAMES cairo
+    HINTS ${PC_CAIRO_LIBDIR}
+          ${PC_CAIRO_LIBRARY_DIRS}
+)
+
+if (CAIRO_INCLUDE_DIRS)
+    if (EXISTS "${CAIRO_INCLUDE_DIRS}/cairo-version.h")
+        file(READ "${CAIRO_INCLUDE_DIRS}/cairo-version.h" CAIRO_VERSION_CONTENT)
+
+        string(REGEX MATCH "#define +CAIRO_VERSION_MAJOR +([0-9]+)" _dummy "${CAIRO_VERSION_CONTENT}")
+        set(CAIRO_VERSION_MAJOR "${CMAKE_MATCH_1}")
+
+        string(REGEX MATCH "#define +CAIRO_VERSION_MINOR +([0-9]+)" _dummy "${CAIRO_VERSION_CONTENT}")
+        set(CAIRO_VERSION_MINOR "${CMAKE_MATCH_1}")
+
+        string(REGEX MATCH "#define +CAIRO_VERSION_MICRO +([0-9]+)" _dummy "${CAIRO_VERSION_CONTENT}")
+        set(CAIRO_VERSION_MICRO "${CMAKE_MATCH_1}")
+
+        set(CAIRO_VERSION "${CAIRO_VERSION_MAJOR}.${CAIRO_VERSION_MINOR}.${CAIRO_VERSION_MICRO}")
+    endif ()
+endif ()
+
+if ("${Cairo_FIND_VERSION}" VERSION_GREATER "${CAIRO_VERSION}")
+    message(FATAL_ERROR "Required version (" ${Cairo_FIND_VERSION} ") is higher than found version (" ${CAIRO_VERSION} ")")
+endif ()
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(Cairo REQUIRED_VARS CAIRO_INCLUDE_DIRS CAIRO_LIBRARIES
+                                        VERSION_VAR CAIRO_VERSION)
+
+mark_as_advanced(
+    CAIRO_INCLUDE_DIRS
+    CAIRO_LIBRARIES
+)