demo projects don't build #1582
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dksmiffs
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Oct 30, 2024
Doesn't fix nanomsg#1582 in general, rather suggests one way that demo builds could be more self contained. This commit also encourages a CMake approach for downstream clients of NNG that is gaining widespread acceptance, evidence given in the README.
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Ubuntu 16. The problem during
cmakestage is:CMake Warning (dev) at CMakeLists.txt:18 (add_executable):
Policy CMP0028 is not set: Double colon in target name means ALIAS or
IMPORTED target. Run "cmake --help-policy CMP0028" for policy details.
Use the cmake_policy command to set the policy and suppress this warning.
Target "raw" links to target "Threads::Threads" but the target was not
found. Perhaps a find_package() call is missing for an IMPORTED target, or
an ALIAS target is missing?
This warning is for project developers. Use -Wno-dev to suppress it.
And building will fail.
The solution is to add to CMakeLists.txt:
set(THREADS_PREFER_PTHREAD_FLAG ON)find_package(Threads REQUIRED)For more: https://stackoverflow.com/questions/1620918/cmake-and-libpthread
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