lib: Detect if pthread_condattr_setclock is available

Auto-detect if pthread_condattr_setclock is available and if
it is not allow the code to compile around the issue.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

diff --git a/configure.ac b/configure.ac
index 09a6f364fb30981c971a6e33c8c32b6fc0dd7ef7..f1ffd43f5bd7537becde5ac78f9905c11ac5a81c 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -313,6 +313,13 @@ AX_PTHREAD([
   AC_MSG_FAILURE([This FRR version needs pthreads])
 ])
 
+AC_SEARCH_LIBS([pthread_condattr_setclock], [],
+               [frr_cv_pthread_condattr_setclock=yes],
+               [frr_cv_pthread_condattr_setclock=no])
+if test "$frr_cv_pthread_condattr_setclock" = yes; then
+  AC_DEFINE(HAVE_PTHREAD_CONDATTR_SETCLOCK, 1, [Have pthread.h pthread_condattr_setclock])
+fi
+
 dnl --------------
 dnl Check programs
 dnl --------------

diff --git a/lib/frr_pthread.h b/lib/frr_pthread.h
index cc4fc74337b940abd82f42ad8d4b78bd8ee6326d..732e2925fef67246b6e2b9a6184b2b223ea59ea5 100644 (file)
--- a/lib/frr_pthread.h
+++ b/lib/frr_pthread.h
@@ -234,4 +234,8 @@ void frr_pthread_yield(void);
  */
 uint32_t frr_pthread_get_id(void);
 
+#ifndef HAVE_PTHREAD_CONDATTR_SETCLOCK
+#define pthread_condattr_setclock(A, B)
+#endif
+
 #endif /* _FRR_PTHREAD_H */