Re: Building for Ada : make gnatlib_and_tools fails

[Andris Pavenis <andris@hal.astr.lu.lv>]

On Fri, 28 Jun 2002, Pierre Habraken wrote:

> Hello,
>
> I am trying to build gcc 3.1 for compiling Ada programs.
> The build and target host is a Linux machine running Redhat 7.2.
> The Gnat compiler is 3.14p.
> I followed instructions given in http://gcc.gnu.org/install/build.html:
>
>     cd gcc-3.1
>     mkdir build
>     cd build
>     ../configure --enable-languages=c,ada
>     cd ../gcc/ada
>     touch treeprs.ads [es]info.h nmake.ad[bs]
>     cd ../../build
>     make bootstrap
>
> Everything works fine until the end of this first step.
> Then:
>
>     cd gcc
>     make gnatlib_and_tools
>
> Building libgnat.a fails:
> ...
> make[2]: Leaving directory `/usr/local/src/gcc-3.1/build/gcc/ada/rts'
> rm -f rts/libgnat.a rts/libgnarl.a
> ar rc rts/libgnat.a \
>    rts/a-caldel.o rts/a-calend.o rts/a-chahan.o rts/a-charac.o
> rts/a-chlat1.o ...
> ... rts/tracebak.o rts/expect.o rts/../../prefix.o
> ar: rts/a-charac.o: No such file or directory
> make[1]: *** [gnatlib] Error 1
> make[1]: Leaving directory `/usr/local/src/gcc-3.1/build/gcc/ada'
> make: *** [gnatlib] Error 2

Got similar trouble when tried to build GNAT together with GCC-3.1
for i586-pc-msdosdjgpp. It seems to be some problem with make which founds
object files in parent directory (used before to build a compiler) and
does not want to rebuild them. As result they are missing when make tried
to build libgnat. It was not the only problem and I dropped attempts
to build GNATS for DJGPP now (maybe I'll retry with gcc-3.2, who knows
...)

> I don't understand why some object files are missing at the time ar is
> executed.
> Does anyone have an idea about the mistake I did ?
>

Andris