"guile-config link" reports LDFLAGS it has been compiled with

"guile-config link" reports LDFLAGS it has been compiled with

[Marijn Schouten (hkBst)]

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Hi list,

"guile-config link" reports LDFLAGS it has been compiled with. Usage says:

  guile-config link        - print libraries to link with

so one of these is inaccurate. To resolve this issue in favor of the description:

- --- guile-1.8.3.orig/configure.in
+++ guile-1.8.3/configure.in
@@ -1333,7 +1333,7 @@ AC_SUBST(LIBGUILE_SRFI_SRFI_60_INTERFACE
 #######################################################################

 dnl Tell guile-config what flags guile users should compile and link with.
- -GUILE_LIBS="$LDFLAGS $LIBS"
+GUILE_LIBS="$LIBS"
 GUILE_CFLAGS="$PTHREAD_CFLAGS"
 AC_SUBST(GUILE_LIBS)
 AC_SUBST(GUILE_CFLAGS)

as reported in http://bugs.gentoo.org/show_bug.cgi?id=202205

thank you,

Marijn

- --
Marijn Schouten (hkBst), Gentoo Lisp project, Gentoo ML
<http://www.gentoo.org/proj/en/lisp/>, #gentoo-{lisp,ml} on FreeNode
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Re: "guile-config link" reports LDFLAGS it has been compiled with

[Ludovic Courtès]

Hi Marijn,

Sorry for the later reply.

"Marijn Schouten (hkBst)" <hkBst@gentoo.org> writes:

> "guile-config link" reports LDFLAGS it has been compiled with. Usage says:
>
>   guile-config link        - print libraries to link with
>
> so one of these is inaccurate. To resolve this issue in favor of the description:
>
> --- guile-1.8.3.orig/configure.in
> +++ guile-1.8.3/configure.in
> @@ -1333,7 +1333,7 @@ AC_SUBST(LIBGUILE_SRFI_SRFI_60_INTERFACE
>  #######################################################################
>
>  dnl Tell guile-config what flags guile users should compile and link with.
> -GUILE_LIBS="$LDFLAGS $LIBS"
> +GUILE_LIBS="$LIBS"
>  GUILE_CFLAGS="$PTHREAD_CFLAGS"
>  AC_SUBST(GUILE_LIBS)
>  AC_SUBST(GUILE_CFLAGS)
>
> as reported in http://bugs.gentoo.org/show_bug.cgi?id=202205

Indeed, you're right.

Conversely, I think `GUILE_CFLAGS' must include `$CPPFLAGS' since this
may include `-I' flags that are required (e.g., `-I/path/to/gmp').

Thanks,
Ludovic.

Re: "guile-config link" reports LDFLAGS it has been compiled with

[Ludovic Courtès]

ludo@gnu.org (Ludovic Courtès) writes:

> "Marijn Schouten (hkBst)" <hkBst@gentoo.org> writes:

>>  dnl Tell guile-config what flags guile users should compile and link with.
>> -GUILE_LIBS="$LDFLAGS $LIBS"
>> +GUILE_LIBS="$LIBS"
>>  GUILE_CFLAGS="$PTHREAD_CFLAGS"
>>  AC_SUBST(GUILE_LIBS)
>>  AC_SUBST(GUILE_CFLAGS)

> Indeed, you're right.
>
> Conversely, I think `GUILE_CFLAGS' must include `$CPPFLAGS' since this
> may include `-I' flags that are required (e.g., `-I/path/to/gmp').

Wait, no: the argument for `$CPPFLAGS' also applies to `$LDFLAGS'.  That
is, if `-L' flags are passed through `$LDFLAGS' to `configure', like
`-L/path/to/gmp', then they must be reported by "guile-config link".

Admittedly, it has the undesirable side-effect of reporting completely
unrelated link flags as well.  Unfortunately, I'm not sure we could
reliably filter `$LDFLAGS'.

Thanks,
Ludovic.

Re: "guile-config link" reports LDFLAGS it has been compiled with

[Greg Troxel]

  Wait, no: the argument for `$CPPFLAGS' also applies to `$LDFLAGS'.  That
  is, if `-L' flags are passed through `$LDFLAGS' to `configure', like
  `-L/path/to/gmp', then they must be reported by "guile-config link".

  Admittedly, it has the undesirable side-effect of reporting completely
  unrelated link flags as well.  Unfortunately, I'm not sure we could
  reliably filter `$LDFLAGS'.

And, this really should use -Wl,-R as well on platforms that use the -R
convention.

Strictly speaking, I think we need both LDFLAGS and -L$(libdir); it may
be that guile was built with prereqs from one place and installed in
another.  But it may always put it's own libdir in LDFLAGS.

It would be nice to see a pkg-config file for guile; I kind of remember
this floating around on the list but 1.8.3 doesn't seem to install it.

Re: "guile-config link" reports LDFLAGS it has been compiled with

[Ludovic Courtès]

Hi,

Greg Troxel <gdt@ir.bbn.com> writes:

> And, this really should use -Wl,-R as well on platforms that use the -R
> convention.
>
> Strictly speaking, I think we need both LDFLAGS and -L$(libdir); it may
> be that guile was built with prereqs from one place and installed in
> another.  But it may always put it's own libdir in LDFLAGS.

Right.

> It would be nice to see a pkg-config file for guile; I kind of remember
> this floating around on the list but 1.8.3 doesn't seem to install it.

Yes, there are several (!) patches for this, so that should go in 1.8.5.

Thanks,
Ludovic.

Re: "guile-config link" reports LDFLAGS it has been compiled with

[dsmich]

---- "Ludovic Courtès" <ludo@gnu.org> wrote: 
> Greg Troxel <gdt@ir.bbn.com> writes:
> > It would be nice to see a pkg-config file for guile; I kind of remember
> > this floating around on the list but 1.8.3 doesn't seem to install it.
> 
> Yes, there are several (!) patches for this, so that should go in 1.8.5.

Why wait for 1.8.5?  Why not put this in 1.8.4?

-Dale

Re: "guile-config link" reports LDFLAGS it has been compiled with

[Ludovic Courtès]

Hi,

<dsmich@adelphia.net> writes:

> Why wait for 1.8.5?  Why not put this in 1.8.4?

Because 1.8.4 should already be available, if only the GNU sysadmins
were a bit more responsive.  :-)

Cheers,
Ludovic.