[pkg-fgfs-crew] Bug#793517: FTBFS: fails to detect FLTK 1.3 during cmake configure

[Chris West (Faux)]

Source: fgrun
Version: 3.4.0.final-1
Severity: serious
Tags: sid
Justification: fails to build from source (but built successfully in the past)
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs

Dear Maintainer,

The package fails to build:

-- Using FLTK_LIBRARIES for fgrun: fltk_forms_SHARED;fltk_gl_SHARED;fltk_images_SHARED;fltk_SHARED;dl;dl
-- Performing Test HAVE_FLTK_1_3
-- Performing Test HAVE_FLTK_1_3 - Failed
CMake Error at CMakeLists.txt:245 (message):
  FLTK 1.3 is required


-- Configuring incomplete, errors occurred!

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/fgrun.html

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.19.0-23-generic (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)