AH_TEMPLATE([CONFIG_RCU_COMPAT_ARCH], [Compatibility mode for i386 which lacks cmpxchg instruction.])
AH_TEMPLATE([CONFIG_RCU_ARM_HAVE_DMB], [Use the dmb instruction if available for use on ARM.])
AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.])
+AH_TEMPLATE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [clock_gettime() is detected.])
# Allow overriding storage used for TLS variables.
AC_ARG_ENABLE([compiler-tls],
])
# Search for clock_gettime
-AC_SEARCH_LIBS([clock_gettime], [rt], [],
- [AC_MSG_ERROR([Cannot find clock_gettime function.])]
-)
+AC_SEARCH_LIBS([clock_gettime], [rt], [
+ AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1])
+], [])
# Check for pthread
AC_CHECK_LIB([pthread], [pthread_create],