[cairo] cairo-1.10.2 make check large number of FAIL due to fonts not found

[Gilles Espinasse]

Hello

I compile in a chroot in that order glib-2.26, dejavu-2.33, freetype-2.4.4,
gd-2.0.35, fontconfig-2.8.0, pixman-0.20.2. After cairo, pango and rrd are
build and work.

I recently try to enable cairo-1.10.2 test suite and that does not work as
it should : too much failures

To simplify, cairo is compiled with
./configure --prefix=/usr && make
Configure status is reported so :

cairo (version 1.10.2 [release]) will be compiled with:

The following surface backends:
  Image:         yes (always builtin)
  Recording:     yes (always builtin)
  Tee:           no (disabled, use --enable-tee to enable)
  XML:           no (disabled, use --enable-xml to enable)
  Skia:          no (disabled, use --enable-skia to enable)
  Xlib:          no (requires X development libraries)
  Xlib Xrender:  no (requires --enable-xlib)
  Qt:            no (disabled, use --enable-qt to enable)
  Quartz:        no (requires CoreGraphics framework)
  Quartz-image:  no (disabled, use --enable-quartz-image to enable)
  XCB:           no (disabled, use --enable-xcb to enable)
  Win32:         no (requires a Win32 platform)
  OS2:           no (disabled, use --enable-os2 to enable)
  CairoScript:   no (disabled, use --enable-script to enable)
  PostScript:    yes
  PDF:           yes
  SVG:           yes
  OpenGL:        no (disabled, use --enable-gl to enable)
  BeOS:          no (disabled, use --enable-beos to enable)
  DirectFB:      no (disabled, use --enable-directfb to enable)
  OpenVG:        no (disabled, use --enable-vg to enable)
  DRM:           no (disabled, use --enable-drm to enable)

The following font backends:
  User:          yes (always builtin)
  FreeType:      yes
  Fontconfig:    yes
  Win32:         no (requires a Win32 platform)
  Quartz:        no (requires CoreGraphics framework)

The following functions:
  PNG functions:   yes
  GLEW functions:  no (not required by any backend)
  GLX functions:   no (not required by any backend)
  WGL functions:   no (not required by any backend)
  EGL functions:   no (not required by any backend)
  X11-xcb functions: no (disabled, use --enable-xlib-xcb to enable)
  XCB-drm functions: no (disabled, use --enable-xcb-drm to enable)
  XCB-shm functions: no (requires --enable-xcb)
  DRM-Xr functions: no (disabled, use --enable-drm-xr to enable)

The following features and utilities:
  cairo-trace:                yes
  cairo-script-interpreter:   yes

And the following internal features:
  pthread:       yes
  gtk-doc:       no
  gcov support:  no
  symbol-lookup: yes
  test surfaces: no (disabled, use --enable-test-surfaces to enable)
  ps testing:    no (requires libspectre)
  pdf testing:   no (requires poppler-glib >= 0.13.3)
  svg testing:   no (requires librsvg-2.0 >= 2.15.0)


*** No native surface backends enabled for your platform. It is strongly
*** recommended that you enable the native surface backend feature for your
*** platform.

Looking at the failures
find cairo-1.10.2/test -name "*.log" -ls -exec grep ' FAIL'  {} \; | wc -l
1391
find cairo-1.10.2/test -name "*.log" -ls -exec grep ' PASS'  {} \; | wc -l
997
find cairo-1.10.2/test -name "*.log" -ls -exec grep ' out of memory'  {} \;
| wc -l
1184

I know from https://bugs.freedesktop.org/show_bug.cgi?id=18077
that this high number of 'out of memory' is related to the fonts not found.
fc-list is happy to report installed dejavu fonts and
fc-cache -v
/usr/share/fonts: skipping, existing cache is valid: 0 fonts, 1 dirs
/usr/share/fonts/truetype: skipping, existing cache is valid: 0 fonts, 1
dirs
/usr/share/fonts/truetype/ttf-dejavu: skipping, existing cache is valid: 21
fonts, 0 dirs
/root/.fonts: skipping, no such directory
/var/cache/fontconfig: cleaning cache directory
/root/.fontconfig: not cleaning non-existent cache directory
fc-cache: succeeded

What configuration is required to let cairo find the fonts?

Inspired by 18077 report, I try moving the fonts to /usr/share/fonts and
rerun fc-cache with no changes on cairo test suite.
So I am a bit out of inspiration and don't know what to change.

Gilles