Bug#869888: otb FTBFS with cmake 3.9.0

[Adrian Bunk]

Source: otb
Version: 6.0.0+dfsg-2
Severity: serious

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/otb.html

...
-- Found LibSVM: /usr/lib/libsvm.so  
-- Found OpenCV: /usr/lib/x86_64-linux-gnu/libopencv_core.so (found version "2.4.9") 
-- Try to compile libsiftfast.cpp -- yes.
CMake Error at Modules/ThirdParty/SiftFast/src/CMakeLists.txt:54 (else):
  A duplicate ELSE command was found inside an IF block.


-- Configuring incomplete, errors occurred!