Bug#891683: castle-game-engine: FTBFS on mips(el): Cannot load FreeType library

Source: castle-game-engine
Version: 6.4+dfsg1-2
Severity: important
Tags: upstream
Justification: fails to build from source
User: [email protected]
Usertags: mips mipsel

Builds of castle-game-engine for mips [1] and mipsel [2] have been
failing with errors along the lines of

  Linking /<<BUILDDIR>>/castle-game-engine-6.4+dfsg1/debian/tmp/tmp/texture-font-to-pascal
  /usr/bin/ld.bfd: warning: /<<BUILDDIR>>/castle-game-engine-6.4+dfsg1/debian/tmp/tmp/link.res contains output sections; did you forget -T?
  /usr/bin/ld.bfd: /usr/lib/mips-linux-gnu/fpc/3.0.4/units/mips-linux/rtl/system.o: warning: linking abicalls files with non-abicalls files
  [...]
  /usr/bin/ld.bfd: /<<BUILDDIR>>/castle-game-engine-6.4+dfsg1/debian/tmp/tmp/castleinternalftfont.o: warning: linking abicalls files with non-abicalls files
  76110 lines compiled, 42.9 sec
  cd src/fonts ; PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/<<BUILDDIR>>/castle-game-engine-6.4+dfsg1/debian/tmp/tmp ./mk_fonts.sh
  + TEXTUREFONT2PASCAL=texture-font-to-pascal
  + TEXT_NODE_FONT_SIZE=20
  + texture-font-to-pascal --size 20 /usr/share/fonts/truetype/dejavu/DejaVuSans-BoldOblique.ttf --unit-name CastleTextureFont_DjvSansBO_20
  An unhandled exception occurred at $00609C6C:
  EFreeTypeLibraryNotFound: Cannot load FreeType library, loading font files not possible
    $00609C6C
    $0074B36C
    $00537AC8
    $0045855C
    $00457DB4

Could you please take a look?

Thanks!

[1] https://buildd.debian.org/status/fetch.php?pkg=castle-game-engine&arch=mips&ver=6.4%2Bdfsg1-2&stamp=1518388715&raw=0
[2] https://buildd.debian.org/status/fetch.php?pkg=castle-game-engine&arch=mipsel&ver=6.4%2Bdfsg1-2&stamp=1518390291&raw=0