Re: [Boost-build] Compiling with -O0 with <release>debug and <toolset>clang-darwin

Subject: Re: [Boost-build] Compiling with -O0 with <release>debug and <toolset>clang-darwin
From: Christian Schafmeister (chris.schaf_at_[hidden])
Date: 2013-10-13 18:09:22

Christian Schafmeister <chris.schaf_at_[hidden]> writes:

> chris.schaf_at_[hidden] writes:
>
>> How can I get boost-build to compile with -O0 using
>> <toolset>clang-darwin and <release>debug.
>> Currently as shown below there is still a "-O1" option in the compile
>> command and I'm afraid that it is the reason why I can't print local
>> variables when I debug the executable with "lldb".
>>
>> bjam -j1 toolset=clang-darwin bundle debug -n
>>
>>     "clang++" -x c++  -O0 -g -O1 -Warray-bounds -Wframe-larger-than=16
>>     -Wlarger-than=4 -Wno-deprecated-register -std=c++11 -stdlib=libc++
>>     -O0 -fno-inline -Wall -g -DDEBUG_ASSERTS -DDEBUG_MPS -DEXPAT
>>     -DINCLUDED_FROM_BRCL -DINHERITED_FROM_SRC -DREADLINE
>>     -D_ADDRESS_MODEL_64 -D_DEBUG_BUILD -D_TARGET_OS_DARWIN
>>     -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS
>>     -D__STDC_LIMIT_MACROS
>>     -I"../../build/cando.app/Contents/Resources/externals/gmp-5.0.5"
>>     -I"../../src" -I"../../src/core"
>>     -I"../../src/core/bin/clang-darwin-darwin/debug"
>>     -I"/Library/Frameworks/EPD64.framework/Versions/7.2/include/python2.7"
>>     -I"/Users/meister/Development/cando/brcl/build/cando.app/Contents/Resources/externals/common/include"
>>     -I"/Users/meister/Development/cando/brcl/build/cando.app/Contents/Resources/externals/release/include"
>>     -c -o "../../src/core/bin/clang-darwin-darwin/debug/stringList.o"
>>     "../../src/core/stringList.cc"
>>
>>
>>
>> _______________________________________________
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>
> One other thing - the compile command below is what I got after a lot of
> messing around with .jam files and the preceeding "-O0" appears to be overriding the
> following "-O1".  When I compile now I am able to print local variables
> in lldb (hurray!). 
>
> But if anyone could tell me how to remove the "-O1" completely I'd very much
> appreciate it.
>
>
>
> _______________________________________________
> Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost-build

(sigh) 

I just learned that the last -O# option overrides all others and so I
don't need to remove the -O1 from the compile commands because it is
overridden by the following -O0.

Well, that was an auspicious first post to boost.build mailing list.

If you read this far - thanks.