Mail Archives: djgpp-workers/1998/03/19/11:42:11
> From: Robert Hoehne <robert DOT hoehne AT gmx DOT net>
> Subject: Re: Building gcc-2.8.1 for DJGPP
>
> This is, because not all my patches which I did for the DJGPP
> port of gcc 2.8.0 are already included in gcc 2.8.1. So apply the
> following patch to the main configure script:
>
....... skipped ........
>
> and then create the new file config/i386/x-go32
>
....... also skipped .......
Thanks for information. I have already applied the first patch (I
always look for failures in patching so I saw it). About missing
file the reason was simple: I looked with names in gcc280s
that ends with '~', but empty file x-go32.~ was missing, so
I skipped it.
Today I build the compiler with one I got yesterday. All went
OK. The final version (compiled with -O2) works.
I also had to install gcc manually as install script didn't work
correctly (it created directory '$DJGPP' instead of expanding
$DJGPP and there were also other problems)
Now about one other more serious problem:
Looks that libstdcxx.a generated by gcc-2.8.0 (from archive
lgpp280b.zip) is incompatible with gcc-2.8.1:
Here is an example:
in module strstream.o default destructor of class ostrstream
is included in library as static function (not external)
Here is fragment of output of command 'nm' for
libstdcxx.a:
00002a7c ? LSFDE95
00002ac0 ? LSFDE97
0000117c t istrstream::~istrstream(void)
00000ff4 t ostrstream::~ostrstream(void)
00000554 T strstreambuf::~strstreambuf(void)
00001440 t strstreambase::~strstreambase(void)
000018b8 t iostream::~iostream(void)
gcc-2.8.1 generates references as to external procedure
The result is errors from ld.exe. I tested gcc-2.8.0 is not
generating such references. The same problem as with
gcc-2.8.1 is with pgcc-2.90.23 (egcs-1.01).
So it's looks that it necessary to also recompile
libstdcxx.a when changing to gcc-2.8.1. Maybe library
compiled with gcc-2.8.1 is usable also with 2.8.0 but
this also in not yet known.
One more question:
Is it significant to include suggested changes in exception handling
under DJGPP when building GCC-2.8.1
Andris Pavenis
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