From c3ed65c2c60b8744163b3a57cf24469e688536dd Mon Sep 17 00:00:00 2001
From: Jonathan Scruggs <j.scruggs@gmail.com>
Date: Sat, 13 Jan 2018 11:54:44 +0000
Subject: [PATCH] OpenCOLLADA/CMakeLists.txt

Use CMAKE_BUILD_TYPE which can be overrided with custom distro types

Adhere to GNU filesystem layout conventions. Not all distros and OSes
have directories in the same locations and they define the
GNUInstallDirs variables, so use those variables. Also, this enables
multi lib installations.

Define the version variables to enable SONAME versioning on the
library files in case there is ABI changes in the future.
---
 CMakeLists.txt | 58 ++++++++++++++++++++++++++++++++++++----------------------
 1 file changed, 36 insertions(+), 22 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 95abbe21..00ad8d6a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,14 +37,41 @@ cmake_policy(SET CMP0010 NEW)
 # Input directories must have CMakeLists.txt
 cmake_policy(SET CMP0014 NEW)
 
-# avoid having empty buildtype
-set(CMAKE_BUILD_TYPE_INIT "Release")
 
-set(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Only do Release and Debug" FORCE )
-mark_as_advanced(CMAKE_CONFIGURATION_TYPES)
+# Set Release type for builds where CMAKE_BUILD_TYPE is unset
+# This is usually a good default as this implictly enables
+#
+#   CXXFLAGS = -O3 -DNDEBUG
+#
+if( NOT CMAKE_BUILD_TYPE )
+	set( CMAKE_BUILD_TYPE "Release" )
+endif()
 
 SET(CMAKE_DEBUG_POSTFIX ""  CACHE STRING "Add this string to as suffix to Debug libraries, e.g.: xml2_d.lib " )
 
+# Adhere to GNU filesystem layout conventions
+include( GNUInstallDirs )
+
+
+# #-----------------------------------------------------------------------------
+# Initialize project.
+
+project(OPENCOLLADA)  # must be after setting cmake_configuration_types
+
+set(EXTERNAL_LIBRARIES        	   ${OPENCOLLADA_SOURCE_DIR}/Externals)  # external libraries
+set(CMAKE_MODULE_PATH "${EXTERNAL_LIBRARIES}/cmake-modules")
+
+set(OPENCOLLADA_VERSION_MAJOR 1)
+set(OPENCOLLADA_VERSION_MINOR 6)
+set(OPENCOLLADA_VERSION_PATCH 68)
+set(OPENCOLLADA_VERSION ${OPENCOLLADA_VERSION_MAJOR}.${OPENCOLLADA_VERSION_MINOR}.${OPENCOLLADA_VERSION_PATCH})
+
+if(NOT SOVERSION)
+	set(SOVERSION ${OPENCOLLADA_VERSION_MAJOR}.${OPENCOLLADA_VERSION_MINOR}
+		CACHE STRING "Set the SO version in the SO name of the output library")
+endif()
+
+
 #-----------------------------------------------------------------------------
 # Macro's
 
@@ -58,7 +85,7 @@ macro(opencollada_add_lib
 
 	if (USE_STATIC)
 		add_library(${name}_static STATIC ${sources})
-		set_target_properties(${name}_static PROPERTIES OUTPUT_NAME ${name})
+		set_target_properties(${name}_static PROPERTIES OUTPUT_NAME ${name} SOVERSION ${SOVERSION})
 		foreach(target_lib ${target_libs})
 			if(TARGET ${target_lib}_static)
 				target_link_libraries(${name}_static ${target_lib}_static)
@@ -84,7 +111,7 @@ macro(opencollada_add_lib
 			message(${name} " WARNING: Shared library support implemented for UNIX-like OS only")
 		endif ()
 		add_library(${name}_shared SHARED ${sources})
-		set_target_properties(${name}_shared PROPERTIES OUTPUT_NAME ${name})
+		set_target_properties(${name}_shared PROPERTIES OUTPUT_NAME ${name} SOVERSION ${SOVERSION})
 		foreach(target_lib ${target_libs})
 			if(TARGET ${target_lib}_shared)
 				target_link_libraries(${name}_shared ${target_lib}_shared)
@@ -145,19 +172,6 @@ endmacro()
 # end copy
 # --------
 
-#-----------------------------------------------------------------------------
-# Initialize project.
-
-project(OPENCOLLADA)  # must be after setting cmake_configuration_types
-
-set(EXTERNAL_LIBRARIES        	   ${OPENCOLLADA_SOURCE_DIR}/Externals)  # external libraries
-set(CMAKE_MODULE_PATH "${EXTERNAL_LIBRARIES}/cmake-modules")
-
-set(OPENCOLLADA_VERSION_MAJOR 0)
-set(OPENCOLLADA_VERSION_MINOR 1)
-set(OPENCOLLADA_VERSION_PATCH 0)
-set(OPENCOLLADA_VERSION ${OPENCOLLADA_VERSION_MAJOR}.${OPENCOLLADA_VERSION_MINOR}.${OPENCOLLADA_VERSION_PATCH})
-
 
 #-----------------------------------------------------------------------------
 # Compiler warnings.
@@ -190,9 +204,9 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_WARNINGS}")
 #-----------------------------------------------------------------------------
 # Install vars
 
-set(OPENCOLLADA_INST_INCLUDE ${CMAKE_INSTALL_PREFIX}/include/opencollada)
-set(OPENCOLLADA_INST_LIBRARY ${CMAKE_INSTALL_PREFIX}/lib/opencollada)
-set(OPENCOLLADA_INST_CMAKECONFIG ${OPENCOLLADA_INST_LIBRARY}/cmake)
+set(OPENCOLLADA_INST_INCLUDE ${CMAKE_INSTALL_FULL_INCLUDEDIR}/opencollada)
+set(OPENCOLLADA_INST_LIBRARY ${CMAKE_INSTALL_FULL_LIBDIR}/opencollada)
+set(OPENCOLLADA_INST_CMAKECONFIG ${CMAKE_INSTALL_FULL_LIBDIR}/cmake/OpenCOLLADA)
 
 
 #-----------------------------------------------------------------------------
-- 
2.15.1