gcc 2.7.2 and egcs on the same system

[H.J. Lu]

> 
> For my mainline development work, I'd like to use gcc 2.7.2.  On the
> same system, I'd like to have egcs installed so that I can see what
> sorts of efficiency I can expect when the code ships.  When I tune my
> code, I'll tune it for egcs, but I'll do my debugging on gcc 2.7.2 so
> that I can avoid most compiler instability.
> 
> Or at least, that was the idea.  Following a suggestion on the FAQ,
> I installed binutils-2.8.1.0.18.  That wasn't so smart -- now gcc 2.7.2
> won't compile.  Before I get myself any deeper in trouble, could
> someone suggest to me how I get gcc 2.7.2 back into working condition?
> If it helps at all, the system was a RedHat 4.2 system before I
> upgraded binutils.
> 
> After that, I'd be interested to hear how to get egcs's auto-configure
> to run without installing the new binutils.  The old ones seemed to
> cause a failure, which I can't display here since I can't reproduce it
> since I don't have the old binutils.
> 
> 

I have been using gcc 2.7.2, 2.7.2.3, 2.8.0 and many egcs releases
on the same machine for a long time. Yes, I am using binutils
2.8.1.0.18. What is your problem? BTW, I install all of them under
/usr and use -V to select which one to use. I also need to patch
specs in gcc 2.7.2. I am enclosing mine here. It is for gcc 2.7.2.
Please notice that *asm: is changed. For 2.7.2.3, you need to change

%{!shared:-lgcc}

to

-lgcc

for *libgcc:.


-- 
H.J. Lu (hjl@gnu.org)
---
*asm:
%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}

*asm_final:
%{pipe:-}

*cpp:
%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{!m386:-D__i486__} %{posix:-D_POSIX_SOURCE}

*cc1:


*cc1plus:


*endfile:
%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s

*link:
-m elf_i386 %{shared:-shared}   %{!shared:     %{!ibcs:       %{!static: 	%{rdynamic:-export-dynamic} 	%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.1}} 	%{static:-static}}}

*lib:
%{!shared: %{mieee-fp:-lieee} %{p:-lgmon} %{pg:-lgmon}      %{!ggdb:-lc} %{ggdb:-lg}}

*libgcc:
%{!shared:-lgcc}

*startfile:
%{!shared:      %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}   crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}

*switches_need_spaces:


*signed_char:
%{funsigned-char:-D__CHAR_UNSIGNED__}

*predefines:
-D__ELF__ -Dunix -Di386 -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(i386) -Amachine(i386)

*cross_compile:
0

*multilib:
. ;