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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>I believe that is the defined behavior. Usually, people would use add_definitions() to add the flags before creating the target. If you have one target per subdirectory, you don’t have to worry about removing them afterwards:<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>CMakeLists.txt:<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> add_definitions(/foo)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> add_subdirectory(baz)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> add_subdirectory(qux)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>baz/CMakeLists.txt<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> add_definitions(/bar)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> add_executable(baz baz.cpp)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>qux/CMakeLists.txt<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> add_executable(qux qux.cpp)<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>baz gets the compiler flags “/foo /bar”, qux only gets “/foo”.<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>As an aside, I ran into a similar issue, but with Linker Flags in the cache. To overcome that, I wrote a few functions to encapsulate the writing of flags and handle checking for duplicates. You could certainly do something similar with properties:<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>############################################################<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>## Cache Set Helper Functions<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>############################################################<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>function(AppendIfMissing _outVar _inVar _value)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> string(REGEX REPLACE " " ";" _inList "${${_inVar}}")<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> list(FIND _inList "${_value}" _pos)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> if(${_pos} EQUAL -1)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> set(${_outVar} "${${_inVar}} ${_value}" PARENT_SCOPE)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> else()<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> set(${_outVar} "${${_inVar}}" PARENT_SCOPE)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> endif()<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>endfunction(AppendIfMissing)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>function(CheckAndAppendCacheForce _varName _value _type )<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> AppendIfMissing(_outvar ${_varName} ${_value})<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> foreach(_arg IN LISTS ARGN)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> set(_desc "${_desc} ${_arg}")<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> endforeach()<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> set(${_varName} "${_outvar}" CACHE ${_type} "${_desc}" FORCE)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>endfunction(CheckAndAppendCacheForce)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>function(CheckAndAppendCache _varName _value _type )<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> AppendIfMissing(_outvar ${_varName} ${_value})<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> foreach(_arg IN LISTS ARGN)<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> set(_desc "${_desc} ${_arg}")<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> endforeach()<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'> set(${_varName} "${_outvar}" CACHE ${_type} "${_desc}")<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>endfunction(CheckAndAppendCache)<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#666666'>Aaron Meadows</span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#666666'><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> cmake-bounces@cmake.org [mailto:cmake-bounces@cmake.org] <b>On Behalf Of </b>Robert Dailey<br><b>Sent:</b> Monday, February 06, 2012 3:58 PM<br><b>To:</b> CMake ML<br><b>Subject:</b> [CMake] COMPILE_FLAGS property that appends instead of replaces<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I would like to set the COMPILE_FLAGS property multiple times on the same target through set_target_properties(), however only the last call seems to persist. Previous flags set get overridden. Is this the correct behavior? If so, is there a way to make this property append instead of replace on the same target?<br clear=all><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>---------<o:p></o:p></p></div><p class=MsoNormal>Robert Dailey<o:p></o:p></p></div></body></html><br>
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