[PATCH 1/2] ConfigureChecks: Stop checking for CMAKE_HAVE_THREADS_LIBRARY.

[Raphael Kubo da Costa <rakuco@xxxxxxxxxxx>]

From: Raphael Kubo da Costa <rakuco-HZy0K5TPuP5AfugRpC6u6w@xxxxxxxxxxxxxxxx>

libssh is primarily interested in whether pthreads is present and can be
used. Checking for CMAKE_HAVE_THREADS_LIBRARY is not the same thing, as
there are cases where pthread exists but CMAKE_HAVE_THREADS_LIBRARY is not
set (for example, FreeBSD passes -DTHREADS_HAVE_PTHREAD_ARG=1 to CMake by
default as a way to skip the checks for -lpthread, -lpthreads and others and
tell the build system that -pthread is the one expected to be used).
---
 ConfigureChecks.cmake | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index 472fe79..8f76af8 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -169,11 +169,9 @@ if (GCRYPT_FOUND)
     endif (GCRYPT_VERSION VERSION_GREATER "1.4.6")
 endif (GCRYPT_FOUND)
 
-if (CMAKE_HAVE_THREADS_LIBRARY)
-    if (CMAKE_USE_PTHREADS_INIT)
-        set(HAVE_PTHREAD 1)
-    endif (CMAKE_USE_PTHREADS_INIT)
-endif (CMAKE_HAVE_THREADS_LIBRARY)
+if (CMAKE_USE_PTHREADS_INIT)
+    set(HAVE_PTHREAD 1)
+endif (CMAKE_USE_PTHREADS_INIT)
 
 # OPTIONS
 check_c_source_compiles("
-- 
1.8.5.2