Re: gperf /usr/include/c++/15.2.0/cstdlib:46:10: fatal error: bits/c++config.h: No such file or directory - BLFS 13.0

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On 4/3/26 2:06 PM, Zeckma ([email protected] via blfs-support 
Mailing List) wrote:
> On 4/3/26 11:37, rhubarbpieguy ([email protected] via
> blfs-support Mailing List) wrote:
> > Gperf fails for me.
> >
> >
> > In file included from /usr/include/c++/15.2.0/stdlib.h:36,
> >                  from ../lib/stdlib.h:51,
> >                  from ./options.cc:27:
> > /usr/include/c++/15.2.0/cstdlib:46:10: fatal error: 
> bits/c++config.h: No such file or directory
> >    46 | #include <bits/c++config.h>
> >       |          ^~~~~~~~~~~~~~~~~~
> > compilation terminated.
> > make[1]: *** [Makefile:135: main.o] Error 1
> > make[1]: *** [Makefile:117: options.o] Error 1
> > make[1]: Leaving directory '/sources/gperf-3.3/src'
> > make: *** [Makefile:45: install] Error 2
> >
> >
> > I see no errors prior to gperf.  The glibc and gcc tests look good.
> > I have /usr/include/c++/15.2.0/x86_64-lfs-linux-gnu/bits/c++config.h.
>
> To me, this looks like GCC in chapter 8 wasn't actually installed.
> Specifically, /usr/include/c++/15.2.0/bits comes from the libstdc++
> component of GCC. There is a build of it for $LFS_TGT for the
> cross-compiling stage, but the main standard C++ library and its
> headers should get installed by GCC in chapter 8. I'd navigate to
> the GCC build directory, install GCC, and retry the gperf build. If it
> succeeds, I'd rebuild and reinstall everything between chapter 8 GCC
> and gperf, then rebuild and reinstall gperf, then continue to be safe.
>
> - Zeckma 


All the programs listed in the gcc documentation were present but I 
found a solution with a different host system.

I was using Manjaro as a host as I'm compiling on a new box.  As I'd 
reviewed my steps and scripts several times I switched to a different 
host in desperation.  Gperf compiled successfully and 13.0 completed.

Fortunately, I always backup after chapter 7 so I restored and used the 
same scripts.  That way I used an identical starting point and compiling 
method.

My guess is the problem might well not be Manjaro, but something I did.  
However, switching hosts worked and it was an apples-and-apples test 
otherwise.  I'm posting this as perhaps it'll make sense to someone or 
help another down the line.


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