Hunt down pthread instead of just assuming that we'll find it.

CMake/FindPThread.cmake

@@ -0,0 +1,27 @@
+# - Try to find libpthread
+#
+# Once done this will define
+#
+#  LIBPTHREAD_FOUND - system has libpthread
+#  LIBPTHREAD_INCLUDE_DIRS - the libpthread include directory
+#  LIBPTHREAD_LIBRARIES - Link these to use libpthread
+#  LIBPTHREAD_DEFINITIONS - Compiler switches required for using libpthread
+#
+#  Redistribution and use is allowed according to the terms of the New
+#  BSD license.
+#  For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+
+
+if (LIBPTHREAD_LIBRARIES AND LIBPTHREAD_INCLUDE_DIRS)
+  set (LIBPTHREAD_FIND_QUIETLY TRUE)
+endif (LIBPTHREAD_LIBRARIES AND LIBPTHREAD_INCLUDE_DIRS)
+
+find_path (LIBPTHREAD_INCLUDE_DIRS NAMES pthread.h)
+find_library (LIBPTHREAD_LIBRARIES NAMES pthread)
+
+include (FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBPTHREAD DEFAULT_MSG
+    LIBPTHREAD_LIBRARIES LIBPTHREAD_INCLUDE_DIRS)
+
+mark_as_advanced(LIBPTHREAD_INCLUDE_DIRS LIBPTHREAD_LIBRARIES LIBPTHREAD_FOUND)

CMake/HPHPFindLibs.cmake

@@ -18,7 +18,6 @@
 include(CheckFunctionExists)
 
 # boost checks
-
 find_package(Boost 1.48.0 COMPONENTS system program_options filesystem regex REQUIRED)
 include_directories(${Boost_INCLUDE_DIRS})
 link_directories(${Boost_LIBRARY_DIRS})
@@ -255,6 +254,10 @@ include_directories(${LDAP_INCLUDE_DIR})
 find_package(Ncurses REQUIRED)
 include_directories(${NCURSES_INCLUDE_PATH})
 
+# libpthreads
+find_package(PThread REQUIRED)
+include_directories(${LIBPTHREAD_INCLUDE_DIRS})
+
 find_package(Readline REQUIRED)
 include_directories(${READLINE_INCLUDE_DIR})
 
@@ -394,7 +397,9 @@ endif()
 
 	target_link_libraries(${target} ${BFD_LIB})
 	target_link_libraries(${target} ${BINUTIL_LIB})
-	target_link_libraries(${target} pthread)
+if (${LIBPTHREAD_LIBRARIES})
+	target_link_libraries(${target} ${LIBPTHREAD_LIBRARIES})
+endif()
 	target_link_libraries(${target} ${TBB_LIBRARIES})
 	target_link_libraries(${target} ${OPENSSL_LIBRARIES})
 	target_link_libraries(${target} ${ZLIB_LIBRARIES})