Merge commit 'c1d65c7f1f6836d4fe961c0a54ea11ff8fdfc62d' as 'cmake'

cmake/EnableProfiling.cmake

@@ -0,0 +1,56 @@
+# - Add flags to compile with profiling support - currently only for GCC
+#
+#  enable_profiling(<targetname>)
+#  globally_enable_profiling() - to modify CMAKE_CXX_FLAGS, etc
+#    to change for all targets declared after the command, instead of per-command
+#
+#
+# Original Author:
+# 2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
+# http://academic.cleardefinition.com
+# Iowa State University HCI Graduate Program/VRAC
+#
+#          Copyright Iowa State University 2009-2010
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+if(__enable_profiling)
+	return()
+endif()
+set(__enable_profiling YES)
+
+macro(_enable_profiling_flags)
+	set(_flags)
+	if(MSVC)
+		# TODO: what kind of flags are needed to profile on MSVC?
+		#set(_flags /W4)
+	elseif(CMAKE_COMPILER_IS_GNUCXX)
+		set(_flags "-p")
+	endif()
+endmacro()
+
+function(enable_profiling _target)
+	_enable_profiling_flags()
+	get_target_property(_origflags ${_target} COMPILE_FLAGS)
+	if(_origflags)
+		set_property(TARGET
+			${_target}
+			PROPERTY
+			COMPILE_FLAGS
+			"${_flags} ${_origflags}")
+	else()
+		set_property(TARGET
+			${_target}
+			PROPERTY
+			COMPILE_FLAGS
+			"${_flags}")
+	endif()
+
+endfunction()
+
+function(globally_enable_profiling)
+	_enable_profiling_flags()
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_flags}" PARENT_SCOPE)
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_flags}" PARENT_SCOPE)
+endfunction()