Description: Debian: Don't autodetect whether semephores are present
 Assume working semaphores, don't rely on running kernel for the check.
 Build machine != Target machine.

Forwarded: not-needed

--- a/configure.ac
+++ b/configure.ac
@@ -5535,10 +5535,15 @@
   [ac_cv_posix_semaphores_enabled=yes])
 )
 AS_VAR_IF([ac_cv_posix_semaphores_enabled], [no], [
-  AC_DEFINE(
-    [POSIX_SEMAPHORES_NOT_ENABLED], [1],
-    [Define if POSIX semaphores aren't enabled on your system]
-  )
+  case $ac_sys_system in
+    Linux*) # assume yes, see https://launchpad.net/bugs/630511
+      ;;
+    *)
+      AC_DEFINE(
+        [POSIX_SEMAPHORES_NOT_ENABLED], [1],
+        [Define if POSIX semaphores aren't enabled on your system]
+      )
+  esac
 ])
 
 dnl Multiprocessing check for broken sem_getvalue