bug#31647: [core-updates] gtkglext fails in a weird way

[Ricardo Wurmus]

Hi,

on “core-updates” the “gtkglext” package fails with an odd error
message:

--8<---------------cut here---------------start------------->8-
make[4]: Leaving directory 
'/tmp/guix-build-gtkglext-1.2.0.drv-0/gtkglext-1.2.0/gdk'
make[3]: *** [Makefile:558: all-recursive] Error 1
make[3]: Leaving directory 
'/tmp/guix-build-gtkglext-1.2.0.drv-0/gtkglext-1.2.0/gdk'
make[2]: *** [Makefile:428: all] Error 2
make[2]: Leaving directory 
'/tmp/guix-build-gtkglext-1.2.0.drv-0/gtkglext-1.2.0/gdk'
make[1]: *** [Makefile:363: all-recursive] Error 1
make[1]: Leaving directory '/tmp/guix-build-gtkglext-1.2.0.drv-0/gtkglext-1.2.0'
make: *** [Makefile:279: all] Error 2
Backtrace:
           4 (primitive-load "/gnu/store/spxlr67fxvsjyz489wwds5saa6p…")
In ice-9/eval.scm:
   191:35  3 (_ _)
In srfi/srfi-1.scm:
    640:9  2 (for-each #<procedure 95ddc0 at /gnu/store/f95ghy8mx00…> …)
In 
/gnu/store/f95ghy8mx00fc22nrvswvnpqlfdkf2nk-module-import/guix/build/gnu-build-system.scm:
   799:31  1 (_ _)
In 
/gnu/store/f95ghy8mx00fc22nrvswvnpqlfdkf2nk-module-import/guix/build/utils.scm:
    616:6  0 (invoke _ . _)

/gnu/store/f95ghy8mx00fc22nrvswvnpqlfdkf2nk-module-import/guix/build/utils.scm:616:6:
 In procedure invoke:
Throw to key `srfi-34' with args `(#<condition &invoke-error [program: "make" 
arguments: ("-j" "4") exit-status: 2 term-signal: #f stop-signal: #f] 9f5f80>)'.
builder for `/gnu/store/0ykv7qamqrk130j5wcg7hvs07gidhvkc-gtkglext-1.2.0.drv' 
failed with exit code 1
--8<---------------cut here---------------end--------------->8---

Note that it does not print that the build phase failed.

--
Ricardo