Hi Naddy,

On Mon, Aug 04, 2025 at 12:15:38AM +0200, Christian Weisgerber wrote:
> math/graphviz failed to build in my latest amd64 bulk build.  This
> looks like a sporadic failure related to guile.  The graphviz port
> depends on guile2, but the build seems to have picked up guile3.

I figured it out. This happens when:

 - guile 3 is installed a configure time
 - but guile 3 is removed/junked before the guile plugin is built.
 - AND guile version 1 is not installed (otherwise it picks up libguile.h from
   /usr/local/include accidentally).

The following diff, which disables looking for any guile-config apart from the
one we want, seems to fix this.

After this, if guile1 is installed, we shouldn't pick up its header because of
the order of the -I arguments:

```
c++ ... -I/usr/local/include/guile/2.2 -I/usr/local/include ...
```

OK?

Index: Makefile
===================================================================
RCS file: /cvs/ports/math/graphviz/Makefile,v
diff -u -p -r1.88 Makefile
--- Makefile	28 Jul 2025 08:28:52 -0000	1.88
+++ Makefile	4 Aug 2025 19:19:05 -0000
@@ -6,7 +6,7 @@ DISTNAME=	graphviz-$V
 PKGNAME-main=	${DISTNAME}
 PKGNAME-tcl=	graphviz-tcl-$V
 CATEGORIES=	math devel graphics
-REVISION-main=	1
+REVISION-main=	2
 REVISION-tcl=	0
 
 MULTI_PACKAGES=	-main -tcl
Index: patches/patch-configure_ac
===================================================================
RCS file: /cvs/ports/math/graphviz/patches/patch-configure_ac,v
diff -u -p -r1.4 patch-configure_ac
--- patches/patch-configure_ac	16 Apr 2024 13:33:19 -0000	1.4
+++ patches/patch-configure_ac	4 Aug 2025 19:18:59 -0000
@@ -10,7 +10,12 @@ Index: configure.ac
      ;;
  esac
  AC_DEFINE_UNQUOTED(GVPLUGIN_VERSION,$GVPLUGIN_VERSION,[Compatibility version number for plugins.])
-@@ -600,7 +600,7 @@ else
+@@ -596,11 +596,11 @@ else
+     if test `$SWIG -help 2>&1 | $EGREP -c '\-guile *- Generate'` = 0; then
+       use_guile="No (swig does not support -guile option)"
+     else
+-      AC_CHECK_PROGS(GUILE_CONFIG,guile-config3.0 guile-config2.2 guile-config)
++      AC_CHECK_PROGS(GUILE_CONFIG,guile-config2.2)
        if test "$GUILE_CONFIG" = ""; then
          use_guile="No (guile not available)"
        else

-- 
Best Regards
Edd Barrett

https://www.theunixzoo.co.uk