From 17411304b8046e782201d1e6fbc6865b664c2845 Mon Sep 17 00:00:00 2001
From: Nils Andresen <nils@nils-andresen.de>
Date: Thu, 18 Aug 2011 20:36:17 +0200
Subject: [PATCH] cmake: added find_optional_package module to force or ignore
optional dependencies
---
CMakeLists.txt | 7 ++++---
cmake/FindOptionalPackage.cmake | 34 +++++++++++++++++++++++++++++++++
2 files changed, 38 insertions(+), 3 deletions(-)
create mode 100644 cmake/FindOptionalPackage.cmake
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e52db4d8a..d7534c48c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,6 +32,7 @@ set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/)
include(AutoVersioning)
include(ConfigOptions)
+include(FindOptionalPackage)
# Soname versioning - 0.0.0 since it is not being managed yet
set(FREERDP_VERSION_MAJOR "0")
@@ -79,9 +80,9 @@ find_package(OpenSSL REQUIRED)
if(NOT WIN32)
find_package(ZLIB REQUIRED)
- find_package(ALSA)
- find_package(PulseAudio)
- find_package(Cups)
+ find_optional_package(ALSA)
+ find_optional_package(PulseAudio)
+ find_optional_package(Cups)
endif()
# Endian
diff --git a/cmake/FindOptionalPackage.cmake b/cmake/FindOptionalPackage.cmake
new file mode 100644
index 000000000..dd89f7eb0
--- /dev/null
+++ b/cmake/FindOptionalPackage.cmake
@@ -0,0 +1,34 @@
+# - FindOptionalPackage
+# Enable or disable optional packages. Also force optional packages.
+#
+# This module defines the following variables:
+#
+
+#=============================================================================
+# Copyright 2011 Nils Andresen <nils@nils-andresen.de>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#=============================================================================
+
+
+macro(find_optional_package _normal_package)
+ STRING(TOUPPER ${_normal_package} _upper_package)
+ OPTION(WITH_${_upper_package} "Force dependencies to ${_normal_package}" OFF)
+ OPTION(WITHOUT_${_upper_package} "Never depend on ${_normal_package}" OFF)
+
+ if(WITH_${_upper_package})
+ find_package(${_normal_package} REQUIRED)
+ elseif(NOT WITHOUT_${_upper_package})
+ find_package(${_normal_package})
+ endif(WITH_${_upper_package})
+endmacro(find_optional_package)