[Pkg-phototools-devel] Bug#917248: FTBFS building for armel on arm64

[Steve McIntyre]

Package: src:openimageio
Version: 1.8.15~dfsg0-1
Severity: important

I've been doing a full rebuild of the Debian archive, building all
source packages targeting armel and armhf using arm64 hardware. We are
planning in future to move all of our 32-bit armel/armhf builds to
using arm64 machines, so this rebuild is to identify packages that
might have problems with this configuration.

I've tried to build openimageio like this, and it's failing its build
partway through. I *can* build it successfully for arm64-on-arm64 and
amd64-on-am64.

I'm guessing there is something in the package configuration that is
picking up on the build machine and making wrong assumptions. The
failure shows up as:

...
In file included from /home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/include/OpenImageIO/simd.h:57,
                 from /home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/include/OpenImageIO/fmath.h:65,
                 from /home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/include/OpenImageIO/hash.h:51,
                 from /home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/include/OpenImageIO/strutil.h:52,
                 from /home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/include/OpenImageIO/ustring.h:
137,
                 from /home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/include/OpenImageIO/paramlist.h:46,
                 from /home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/include/OpenImageIO/imageio.h:61,
                 from /home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/iv/imageviewer.h:59,
                 from /home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/iv/ivgl.cpp:31:
/usr/include/OpenEXR/ImathMatrix.h:429:26: note: 'Imath_2_2::M44f' {aka 'class Imath_2_2::Matrix44<float>'} declared here
 template <class T> class Matrix44
                          ^~~~~~~~
/home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/iv/ivgl.cpp: In member function 'virtual void IvGL::initializeGL()':
/home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/iv/ivgl.cpp:117:5: error: 'glLoadIdentity' was not declared in this scope
     glLoadIdentity();
     ^~~~~~~~~~~~~~
/home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/iv/ivgl.cpp:122:5: error: 'glScalef' was not declared in this scope
     glScalef (dpr, dpr, 1.0f);
     ^~~~~~~~
/home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/iv/ivgl.cpp:122:5: note: suggested alternative: 'locale'
     glScalef (dpr, dpr, 1.0f);
     ^~~~~~~~
     locale
/home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/iv/ivgl.cpp: In member function 'virtual void IvGL::create_textures()':
/home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/iv/ivgl.cpp:176:60: error: 'GL_CLAMP' was not declared in this scope
         glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
                                                            ^~~~~~~~
/home/steve/debian/build/openimageio/openimageio-1.8.15~dfsg0/src/iv/ivgl.cpp:176:60: note: suggested alternative: 'GL_ALWAYS'
         glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
                                                            ^~~~~~~~
                                                            GL_ALWAYS
...

(Maybe it's trying to use the wrong GL here - we target GLES with
armel.)

Full log is online at

  https://www.einval.com/debian/arm/rebuild-logs/armel/FAIL/openimageio_1.8.15~dfsg0-1_armel.log

-- System Information:
Debian Release: 9.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-debug'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-8-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)