[FTBFS] bogl ftbfs with gcc-7

[Tiago Stürmer Daitx]

bogl version 0.1.18-11ubuntu1 currently FTBFS on a rebuild with GCC-7 [1].

From https://launchpadlibrarian.net/337944474/buildlog_ubuntu-artful-amd64.bogl_0.1.18-11ubuntu1_BUILDING.txt.gz
<snip>
cc -Os -g -D_GNU_SOURCE -Wall -D_GNU_SOURCE -DBOGL_CFB_FB=1 -DBOGL_VGA16_FB=1 -o bogl-bgf.o -c bogl-bgf.c
cc libbogl.a bterm.o bogl-term.o bogl-bgf.o libbogl.a -o bterm
cc -Os -g -D_GNU_SOURCE -Wdate-time -D_FORTIFY_SOURCE=2 -Wl,-Bsymbolic-functions -Wl,-z,relro reduce-font.c -o reduce-font
/tmp/ccwnbinq.o: In function `test':
/<<PKGBUILDDIR>>/build-udeb/reduce-font.c:35: undefined reference to `bits'
/tmp/ccwnbinq.o: In function `main':
/<<PKGBUILDDIR>>/build-udeb/reduce-font.c:132: undefined reference to `bits'
collect2: error: ld returned 1 exit status
<builtin>: recipe for target 'reduce-font' failed
make[2]: *** [reduce-font] Error 1
rm tux75.c helvB10.c helvR10.c helvB12.c timBI18.c
make[2]: Leaving directory '/<<PKGBUILDDIR>>/build-udeb'
debian/rules:10: recipe for target 'override_dh_auto_build' failed
make[1]: *** [override_dh_auto_build] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
debian/rules:4: recipe for target 'build' failed
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2

[Graham Inggs (ginggs)]

Fixed in 0.1.18-12ubuntu1:

bogl (0.1.18-12ubuntu1) artful; urgency=medium

  * Merge with Debian; remaining changes:
    - Update the hardcoded color map to the color palette selected by the
      Canonical design team.
  * Update .orig.tar.gz by recompressing Debian's with bzip2.

bogl (0.1.18-12) unstable; urgency=medium

  * patches: Switch to 3.0 patch system.
  * Use canonical anonscm vcs URL.
  * patches/gcc-7: Fix build with gcc-7 (Closes: Bug#853335)
  * patches/cub: Support cub blindly emitted by busybox.
  * control: Migrate priority to optional.
  * control: Bump Standards-Version to 4.1.1.