option to link with jemalloc on *nix, off by default.

CMakeLists.txt

@@ -175,6 +175,10 @@ if(UNIX AND NOT APPLE)
 endif()
 option(WITH_PYTHON_INSTALL       "Copy system python into the blender install folder" ON)
 
+# disable for now, but plan to support on all platforms eventually
+option(WITH_MEM_JEMALLOC   "Enable malloc replacement (http://www.canonware.com/jemalloc)" OFF)
+mark_as_advanced(WITH_MEM_JEMALLOC)
+
 # Debug
 option(WITH_CXX_GUARDEDALLOC "Enable GuardedAlloc for C++ memory allocation tracking (only enable for development)" OFF)
 mark_as_advanced(WITH_CXX_GUARDEDALLOC)
@@ -424,6 +428,15 @@ if(UNIX AND NOT APPLE)
 		set(EXPAT_LIB expat)
 	endif()
 
+	if(WITH_MEM_JEMALLOC)
+		set(JEMALLOC /usr)
+		set(JEMALLOC_LIBRARY ljemalloc CACHE STRING "JeMalloc library")
+		set(JEMALLOC_LIBPATH ${JEMALLOC}/lib  CACHE FILEPATH "JeMalloc library path")
+		# no use for this yet.
+		# set(JEMALLOC_INCLUDE_DIR ${JEMALLOC}/include  CACHE FILEPATH "JeMalloc include path")
+		unset(JEMALLOC)
+	endif()
+
 	find_package(X11 REQUIRED)
 	find_path(X11_XF86keysym_INCLUDE_PATH X11/XF86keysym.h ${X11_INC_SEARCH_PATH})
 	mark_as_advanced(X11_XF86keysym_INCLUDE_PATH)

build_files/cmake/macros.cmake

@@ -114,6 +114,9 @@ macro(SETUP_LIBDIRS)
 		link_directories(${PCRE_LIBPATH})
 		link_directories(${EXPAT_LIBPATH})
 	endif()
+	if(WITH_MEM_JEMALLOC)
+		link_directories(${JEMALLOC_LIBPATH})
+	endif()
 
 	if(WIN32 AND NOT UNIX)
 		link_directories(${PTHREADS_LIBPATH})
@@ -220,6 +223,9 @@ macro(setup_liblinks
 			target_link_libraries(${target} optimized ${LCMS_LIB})
 		endif()
 	endif()
+	if(WITH_MEM_JEMALLOC)
+		target_link_libraries(${target} ${JEMALLOC_LIBRARY})
+	endif()
 	if(WIN32 AND NOT UNIX)
 		target_link_libraries(${target} ${PTHREADS_LIB})
 	endif()