--with-gmp and --with-libgmp-prefix

[Luis Machado]

On 3/11/22 10:06, Joel Brobecker wrote:
>> I was talking to a colleague and we noticed the top-level binutils-gdb
>> configure accepts --with-gmp, which looks like what gcc's configure uses to
>> specify the gmp library installation path.
>>
>> But gdb's configure expects that information to be passed through the
>> --with-libgmp-prefix switch. Was that a deliberate choice (I'm looking at
>> commit 2c947d9bc2ff3b84f1676b83577fe1bba05b4a5f).
>>
>> When one is used to building gcc, it is a little odd to have to specify
>> --with-libgmp-prefix instead of --with-gmp.
>>
>> The top-level configure lists this:
>>
>>    --with-gmp=PATH         specify prefix directory for the installed GMP
>>                            package. Equivalent to
>>                            --with-gmp-include=PATH/include plus
>>                            --with-gmp-lib=PATH/lib
>>
>> And gdb's configure lists this:
>>
>>    --with-libgmp-prefix[=DIR]  search for libgmp in DIR/include and DIR/lib
>>
>> I'm wondering if we can reuse the top-level configure's --with-gmp option.
> 
> Deja vu ;-)
> 

Hah.

> The problem is that GDB has some shared configury that follows
> a certain style, which is not the style that is used by the toplevel
> configury. This triggered a number of discussions, but in the end
> we found no good solution, unfortunately.
> 
Yeah, that's unfortunate. I was imagining GDB's independent configure 
would have something to do with it. Thanks for clarifying that. And 
sorry for bringing this back again. :-)