From 41f0cc83fea88bf0b391a7a9888750359c40e12d Mon Sep 17 00:00:00 2001
From: Thibault Lescoat <thibault.lescoat@telecom-paristech.fr>
Date: Tue, 7 Mar 2017 17:12:23 +0100
Subject: [PATCH] Some fixes to linux compilation

---
 CMakeLists.txt |  1 +
 cmake/bx.cmake | 13 +++++++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index fa164d0..b21bec5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,6 +23,7 @@ option( BGFX_BUILD_TOOLS    "Build bgfx tools."           ON  )
 option( BGFX_BUILD_EXAMPLES "Build bgfx examples."        ON  )
 option( BGFX_INSTALL        "Create installation target." ON  )
 option( BGFX_USE_OVR        "Build with OVR support."     OFF )
+option( BX_AMALGAMATED      "Amalgamate bx source files for faster compilation" ON )
 
 if( NOT BX_DIR )
 	set( BX_DIR "${CMAKE_CURRENT_SOURCE_DIR}/bx" CACHE STRING "Location of bgfx." )
diff --git a/cmake/bx.cmake b/cmake/bx.cmake
index e94d116..c4da0e2 100644
--- a/cmake/bx.cmake
+++ b/cmake/bx.cmake
@@ -15,7 +15,12 @@ if( NOT IS_DIRECTORY ${BX_DIR} )
 endif()
 
 # Grab the bx source files
-file( GLOB BX_SOURCES ${BX_DIR}/src/*.cpp )
+if(BX_AMALGAMATED)
+	set(BX_SOURCES ${BX_DIR}/src/amalgamated.cpp)
+else()
+	file( GLOB BX_SOURCES ${BX_DIR}/src/*.cpp )
+	list(REMOVE_ITEM ${BX_DIR}/src/amalgamated.cpp)
+endif()
 
 # Create the bx target
 add_library( bx STATIC ${BX_SOURCES} )
@@ -42,10 +47,14 @@ target_compile_definitions( bx PUBLIC "__STDC_LIMIT_MACROS" )
 target_compile_definitions( bx PUBLIC "__STDC_FORMAT_MACROS" )
 target_compile_definitions( bx PUBLIC "__STDC_CONSTANT_MACROS" )
 
-# Threads
+# Additional dependencies on Unix
 if( UNIX AND NOT APPLE )
+	# Threads
 	find_package( Threads )
 	target_link_libraries( bx ${CMAKE_THREAD_LIBS_INIT} dl )
+
+	# Real time (for clock_gettime)
+	target_link_libraries( bx rt )
 endif()
 
 # Put in a "bgfx" folder in Visual Studio