Hi Adrian,
You have a good point. I will check it out by only applying the
NVK_ARCHS amendment (ppc64 out) to 26.2.1-4 and test. Will keep you
updated.
Regards,
Jeroen
John Paul Adrian Glaubitz schreef op 2026-09-03 14:21:
User: [email protected]
Usertags: powerpc ppc64
X-Debbugs-CC: [email protected]
Hi,
On Wed, 2026-09-02 at 17:13 +0700, Jeroen Diederen wrote:
EGL is disabled by the Debian Mesa packaging on ppc64.
Without EGL enabled, Mesa does not work correctly on ppc64.
In particular, the resulting Mesa installation is not usable
for normal EGL-based graphics applications.
I have tested this on real ppc64 hardware (PowerPC 970/iMac G5).
Adding the following to debian/rules fixes the problem:
```
ifeq ($(DEB_HOST_ARCH), ppc64)
confflags += -Degl=enabled
endif
```
With this change, Mesa 26.2.1 builds successfully and the resulting
Mesa installation works correctly on ppc64.
The attached patch, mesa-egl-ppc64.patch, adds this ppc64-specific
configuration.
Please enable EGL when building Mesa for ppc64.
I'm surprised that the flag -Degl=enabled would be needed given the
configure output already mentions that it is [1]:
EGL
Enabled : YES
Drivers : builtin:egl_dri2 builtin:egl_dri3
Platforms : x11 wayland surfaceless drm xcb
Also, I wonder why this wouldn't be needed for powerpc.
Adrian
[1]
https://buildd.debian.org/status/fetch.php?pkg=mesa&arch=ppc64&ver=26.1.6-1&stamp=1787561977&raw=0
