Re: [Boost-build] "ar" search on Linux (Was: CVS: boost/tools/build/v2/tools gcc.jam, 1.65, 1.66)

From: Rene Rivera (grafik.list_at_[hidden])
Date: 2006-05-17 10:36:34

Vladimir Prus wrote:
> On Sunday 26 March 2006 10:28, Rene Rivera wrote:
>> Update of /cvsroot/boost/boost/tools/build/v2/tools
>> In directory
>> sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv4358/tools/build/v2/tools
>>
>> Modified Files:
>> 	gcc.jam
>> Log Message:
>> Fixes for MinGW compilation.
>> * Configuration prefers using the AR in the compiler specific bin dir.
> .....
>> +    #~ If it's not a system gcc install we should adjust the various
>> +    #~ programs as needed to prefer using the install specific versions.
>> +    #~ This is essential for correct use of MinGW and for cross-compiling.
>> +    local archiver =
>> +        [ common.get-invocation-command gcc
>> +            : ar : [ feature.get-values <archiver> : $(options) ] : $(bin)
>> : PATH ] ; +    flags gcc.archive .AR $(condition) : $(archiver[1]) ;
>> +    if $(.debug-configuration)
>> +    {
>> +        ECHO notice: using gcc archiver :: $(condition) :: $(archiver[1])
>> ; +    }
>>  }
> 
> Rene, can you clarify why we need to use 'ar' specific to the compiler?
> 
> The problem is that this change makes gcc use the .AR variable. The 
> gcc.archive action is inherited by intel-linux, but the .AR variable is not 
> set for intel-linux, so static linking with intel-linux does not work.
> 
> I'd like to fix this, but first would like to fully understand the change 
> you've did.

I thought the comment explained it :-\ Basically it's possible to 
install a GCC system, for cross-compiling or standalone, such that all 
the binaries of the support programs are in a path local to the compiler 
install location. This is the case with MinGW which, because Windows 
doesn't have anything like a system archiver, has this in the compiler 
bin dir:

addr2line.exe
ar.exe
as.exe
c++.exe
c++filt.exe
cpp.exe
dlltool.exe
dllwrap.exe
g++.exe
gcc.exe
gccbug
gcov.exe
gdb.exe
gprof.exe
ld.exe
mingw32-c++.exe
mingw32-g++.exe
mingw32-gcc-3.4.2
mingw32-gcc-3.4.5
mingw32-gcc.exe
mingw32-make.exe
mingwm10.dll
nm.exe
objcopy.exe
objdump.exe
ranlib.exe
readelf.exe
size.exe
strings.exe
strip.exe
windres.exe

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