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build: Use Threads_FOUND to decide whether to build ssh_threads.

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Follow-up to 4e04ec8, which caused a regression on OS X.

Checking the value of CMAKE_THREAD_LIBS_INIT to decide whether any threading
library is present on a system turns out to be wrong -- in OS X, for
example, usage of pthreads does not depend on any additional linker or
compiler flags, so CMAKE_THREAD_LIBS_INIT is empty and our check in
src/CMakeLists.txt failed (it used to work before 4e04ec8 because
CMAKE_HAVE_THREADS_LIBRARY is set).

Instead, just look for Threads_FOUND, which FindThreads sets just like any
other Find module when it has found what it was looking for.

Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Raphael Kubo da Costa
2014-02-06 12:08:57 +02:00
committed by Andreas Schneider
parent fa34d11749
commit 398e8d50b5
1 changed files with 2 additions and 2 deletions
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4
src/CMakeLists.txt
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@@ -288,6 +288,6 @@ if (WITH_STATIC_LIB)
)
endif (WITH_STATIC_LIB)
if (CMAKE_THREAD_LIBS_INIT)
if (Threads_FOUND)
add_subdirectory(threads)
endif (CMAKE_THREAD_LIBS_INIT)
endif (Threads_FOUND)