[GEM-dev] Re: [GEM-cvs] Gem/src/Gnu configure.in

[IOhannes m zmoelnig]

james tittle wrote:
> On May 24, 2005, at 2:21 AM, IOhannes m zmoelnig wrote:
> 
>> i guess it is like:
>> paste the code into acinclude.m4
>> run "aclocal"
>> run "autoconf"
>> run "./configure"
> 
> 
> ...other things:
> 
> ...in configure.in, there is:
> 
> dnl i am not entirely sure, whether "-fPIC" is a good idea on ALL 
> platforms
> CXXFLAGS="$CXXFLAGS -fPIC"
> 
> AC_SUBST(CXXFLAGS)
> 
> AC_SUBST(AFLAGS)
> 
> AC_SUBST(CXXDEBUG_FLAGS)
> AC_SUBST(CXXOPTIMIZE_FLAGS)
> 
> ...if I read this right, it means that both debug and optimize flags 
> are alway substituted?  If so, how are we supposed to do a debug-only 
> build, with no optimizations?  Shouldn't we have a --debug flag for 
> configure?


well, i just split the flags into those that are responsible for
debugging information and those that are responsible for optimization to
make it a bit more readable.
there is no special meaning behind it at all.

otoh, this makes it simple to add a "debug"-directive to the Makefile
which just uses the debug-flags (and ignores the optimization flags)


mfg.asd.r
IOhannes