[FFmpeg-trac] #6992(build system:new): Cross-build ffmpeg with static gnutls on android fails at configure step

[FFmpeg]

#6992: Cross-build ffmpeg with static gnutls on android fails at configure step
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             Reporter:  alucryd       |                     Type:  defect
               Status:  new           |                 Priority:  normal
            Component:  build system  |                  Version:  3.4
             Keywords:                |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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 Greetings,

 I'm trying to cross-compile ffmpeg 3.4.1 for android using a freshly
 generated x86_64 android toolchain at API version 21.

 Every external library was built static so the resulting ffmpeg binary
 links to the least possible number of libs.

 Everything works fine except configure can't find gnutls with undefined
 references to a lot of GMP symbols despite -lgmp having been added to
 LIBS.

 Here's my config.log: https://paste.xinu.at/Qxb/

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Ticket URL: <https://trac.ffmpeg.org/ticket/6992>
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