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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Ah, the bug didn’t say that it had been released yet, just that
it was in cvs. Sorry for the trouble. Thanks!<o:p></o:p></span></p>
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<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"'> David Cole
[mailto:david.cole@kitware.com] <br>
<b>Sent:</b> Tuesday, March 30, 2010 7:59<br>
<b>To:</b> Simmons, Aaron<br>
<b>Cc:</b> cmake@cmake.org<br>
<b>Subject:</b> Re: [CMake] working around gcc version bug in xocde generator<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>With CMake 2.8.1, you can, in your CMakeLists.txt file:<o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'>set(CMAKE_XCODE_ATTRIBUTE_GCC_VERSION
"4.2")<o:p></o:p></p>
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<p class=MsoNormal>Or, more precisely:<o:p></o:p></p>
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<p class=MsoNormal>set(CMAKE_XCODE_ATTRIBUTE_GCC_VERSION "com.apple.compilers.gcc.4_2")<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>This is part of the bug fix for <a
href="http://public.kitware.com/Bug/view.php?id=9125" target="_blank">http://public.kitware.com/Bug/view.php?id=9125</a>
which was included in the 2.8.1 release (rc3 and later...).<o:p></o:p></p>
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<p class=MsoNormal>It is Xcode-generator specific, though, and has no effect on
generated files for other build systems.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>HTH,<o:p></o:p></p>
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<p class=MsoNormal>David<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>On Mon, Mar 29, 2010 at 4:12 PM, Simmons, Aaron <<a
href="mailto:asimmons@rosettastone.com" target="_blank">asimmons@rosettastone.com</a>>
wrote:<o:p></o:p></p>
<p class=MsoNormal>My project requires using gcc 4.0 when compiling on Mac OS
X, as it has to support 10.4. This works fine for the makefile generator,
but it breaks with the XCode generator for Xcode 3.2 as the default gcc is
v4.2.<br>
<br>
Other posts on this list indicates that it's a bug in the Xcode generator.
I would like to workaround this issue somehow until a new version of
cmake is released.<br>
<br>
One poster suggested using gcc's -V option, which allows forcing the gcc
version. I've tried injecting this into the CMAKE_CXX_FLAGS like this:<br>
if (${CMAKE_GENERATOR} MATCHES "Xcode")<br>
set(CMAKE_CXX_FLAGS "-V 4.0
${CMAKE_CXX_FLAGS}")<br>
endif(${CMAKE_GENERATOR} MATCHES "Xcode")<br>
<br>
However, this creates a new error:<br>
'-V' must come at the start of the command line<br>
<br>
It seems that the CMAKE_CXX_FLAGS are always appended to the constructed gcc
command. Is there some way that I can prepend flags (that is, put them at
the very beginning of the command-line)?<br>
<br>
<br>
Thanks,<br>
aaron<br>
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