Error linking TIFF on Ubuntu about libgeotiff

[NikkittaP]

I'm still facing the same problem on Ubuntu 18.04. Any ideas?

[NikkittaP]

Oookaay, here is my solution for now:

In the main CMakeLists.txt I commented out lines 179-189.
These lines checks functions in TIFF library and somehow it fails on Linux.
I will add more info if I have any problems while using this built libgeotiff library.

[attilaolah]

I think this can be fixed by adding this line to CMakeLists.txt:

cmake_policy(SET CMP0075 NEW)

Specifically, the CMake checks don't seem to honor the CMAKE_REQUIRED_LIBRARIES. This causes failure when you try to link against libraries on your system.

[attilaolah]

Another option is to pass -DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY to cmake.

[lastant]

For me this happened because cmake was looking for libtiff using FIND_PACKAGE and found it, but only the variables TIFF_FOUND, TIFF_DIR, TIFF_VERSION were set, the variable TIFF_LIBRARIES was not, but was needed. I actually had to explicitly set the libraries in the /usr/share/cmake-3.22/Modules/CheckFunctionExists.cmake file to circumvent the issue.

[mathstuf]

Yes, the CMake package generated by libtiff upstream does not provide TIFF_LIBRARIES, so nothing ends up being passed to the try_compile for linking.in order to pass. The check needs reworked to handle this case. Something like this may be fine:

if (NOT TIFF_LIBRARIES AND TARGET TIFF::tiff)
  get_property(TIFF_LIBRARIES TARGET TIFF::tiff PROPERTY LOCATION)
  # request a `STATIC` library in `try_compile` as dependent libraries are not provided this way?
endif ()