[PATCH] config/debuginfod: do not include pkg.m4 directly

[PATCH] config/debuginfod: do not include pkg.m4 directly

[Mike Frysinger]

Any code using AC_DEBUGINFOD from this dir is using -I../config when
running aclocal, so an explicit include on pkg.m4 is unnecessary:
aclocal will find the pkg.m4 in this dir just as easily.  This is
seen in the only two dirs that use AC_DEBUGINFOD (binutils & gdb)
as their aclocal.m4 already has m4_include on config m4 files.

The include as written only works if aclocal is run on a dir that is
at the same level of config/.  Any other depth will fail.
./
|-- config/
|-- binutils/    # works
|-- gdb/         # works
`-- sim/         # works
    `-- <port>/  # fails

It fails even if AC_DEBUGINFOD itself isn't used:
sim/bfin/ $ aclocal -I../../config
aclocal-1.15: error: ../../config/debuginfod.m4:8: file '../config/pkg.m4' does not exist

config/
	* debuginfod.m4: Delete m4_include(../config/pkg.m4).

binutils/
	* aclocal.m4: Regenerate.

gdb/
	* aclocal.m4: Regenerate.
---
 binutils/aclocal.m4  | 1 +
 config/debuginfod.m4 | 2 --
 gdb/aclocal.m4       | 1 +
 3 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/binutils/aclocal.m4 b/binutils/aclocal.m4
index 8eca8cf94c73..e6b490ac4c6c 100644
--- a/binutils/aclocal.m4
+++ b/binutils/aclocal.m4
@@ -1201,6 +1201,7 @@ m4_include([../config/lib-link.m4])
 m4_include([../config/lib-prefix.m4])
 m4_include([../config/nls.m4])
 m4_include([../config/override.m4])
+m4_include([../config/pkg.m4])
 m4_include([../config/plugins.m4])
 m4_include([../config/po.m4])
 m4_include([../config/progtest.m4])
diff --git a/config/debuginfod.m4 b/config/debuginfod.m4
index f9eb0988e354..2c1bfbdb544b 100644
--- a/config/debuginfod.m4
+++ b/config/debuginfod.m4
@@ -5,8 +5,6 @@ dnl Public License, this file may be distributed as part of a program
 dnl that contains a configuration script generated by Autoconf, under
 dnl the same distribution terms as the rest of that program.
 
-m4_include([../config/pkg.m4])
-
 AC_DEFUN([AC_DEBUGINFOD],
 [
 # Handle optional debuginfod support
diff --git a/gdb/aclocal.m4 b/gdb/aclocal.m4
index 110b416e6156..cbea739c0e51 100644
--- a/gdb/aclocal.m4
+++ b/gdb/aclocal.m4
@@ -199,4 +199,5 @@ AC_DEFUN([_AM_SUBST_NOTMAKE])
 # Public sister of _AM_SUBST_NOTMAKE.
 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 
+m4_include([../config/pkg.m4])
 m4_include([acinclude.m4])
-- 
2.30.0

Re: [PATCH] config/debuginfod: do not include pkg.m4 directly

[Tom Tromey]

>>>>> "Mike" == Mike Frysinger via Binutils <binutils@sourceware.org> writes:

Mike> Any code using AC_DEBUGINFOD from this dir is using -I../config when
Mike> running aclocal, so an explicit include on pkg.m4 is unnecessary:
Mike> aclocal will find the pkg.m4 in this dir just as easily.  This is
Mike> seen in the only two dirs that use AC_DEBUGINFOD (binutils & gdb)
Mike> as their aclocal.m4 already has m4_include on config m4 files.

Mike> The include as written only works if aclocal is run on a dir that is

Mike> config/
Mike> 	* debuginfod.m4: Delete m4_include(../config/pkg.m4).

Mike> binutils/
Mike> 	* aclocal.m4: Regenerate.

Mike> gdb/
Mike> 	* aclocal.m4: Regenerate.

This is fine by me, but please wait a little while in case someone on
the binutils list has a differing opinion.

thanks,
Tom

Re: [PATCH] config/debuginfod: do not include pkg.m4 directly

[Mike Frysinger]

On 08 Feb 2021 12:39, Tom Tromey wrote:
> >>>>> "Mike" == Mike Frysinger via Binutils <binutils@sourceware.org> writes:
> 
> Mike> Any code using AC_DEBUGINFOD from this dir is using -I../config when
> Mike> running aclocal, so an explicit include on pkg.m4 is unnecessary:
> Mike> aclocal will find the pkg.m4 in this dir just as easily.  This is
> Mike> seen in the only two dirs that use AC_DEBUGINFOD (binutils & gdb)
> Mike> as their aclocal.m4 already has m4_include on config m4 files.
> 
> Mike> The include as written only works if aclocal is run on a dir that is
> 
> Mike> config/
> Mike> 	* debuginfod.m4: Delete m4_include(../config/pkg.m4).
> 
> Mike> binutils/
> Mike> 	* aclocal.m4: Regenerate.
> 
> Mike> gdb/
> Mike> 	* aclocal.m4: Regenerate.
> 
> This is fine by me, but please wait a little while in case someone on
> the binutils list has a differing opinion.

thanks, i've pushed now
-mike