Re: build 64-bit gcc-4.2.2 on Solaris 9

[Kai Ruottu <kai.ruottu@wippies.com>]

Jim Wilson wrote:

> Poor Yorick wrote:
>> I'm trying to build 64-bit gcc-4.2.2 on Solaris 9, but I keep getting 
>> 32-bit files in the build.  I've tried various values for --host,  
>> --target,  CFLAGS, and LDFLAGS, but no joy.

Telling what target names you have already tried would be quite
obligatory...

>> I've looked around the documentation, and back through a couple of years of the 
>> mailing list without luck.  Could someone please clue me in on how to 
>> tell gcc to be 64-bit?

Looking around the obvious 'gcc/config.gcc' for the available target 
names would be wise... If one cannot guess what the right target name
could be, here one sees what target name templates one could try...

> I don't have a sparc machine here, but I believe most sparc-solaris 
> builds support both 32-bit and 64-bit code.  You get 64-bit code with 
> -m64 and 32-bit code with -m32.  So yes, you will have 32-bit files in 
> the build even when building a gcc that emits 64-bit code.  This isn't a 
> problem.

Traditionally using a 'sparc-solaris2.x' target name has resulted to
a 32-bit default, 64-bit optional (with '-m64') compiler.

> If you want 64-bit code only, you can configure for 
> sparc64-sun-solaris2.10 (or whatever Solaris version you have) and also 
> specify --disable-multilibs to turn off support for the 32-bit libraries.

Furhermore using a 'sparcv9-solaris2.x' target name has resulted to
a 64-bit default, 32-bit optional (with '-m32') compiler.

> You might need to be more specific about what you want here.  You want a 
> gcc compiled as 64-bit code or a gcc that emits 64-bit code or both?

And checking the 'gcc/config.gcc' before configuring would be highly
recommended!  The 'sparc64-<something>' has been the '<cpu>-<something>'
template for Linux, *BSD etc. other opsyses when requiring a 64-bit
default toolchain... Maybe the earlier 'sparcv9' has now been changed
to 'sparc64' with '-solaris2.x' too...