configure: support HAVE_BSD_SYSCTL option

diff --git a/Makefile b/Makefile
index c44eb3a8511c1d179113c241245f4a0ba8dc2787..fdac1b980377a178d0202c339c0d8241e7dbab91 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -348,6 +348,8 @@ all::
 #
 # Define NO_HMAC_CTX_CLEANUP if your OpenSSL is version 0.9.6b or earlier to
 # cleanup the HMAC context with the older HMAC_cleanup function.
+#
+# Define HAVE_BSD_SYSCTL if your platform has a BSD-compatible sysctl function.
 
 GIT-VERSION-FILE: FORCE
        @$(SHELL_PATH) ./GIT-VERSION-GEN
@@ -1414,6 +1416,10 @@ ifdef HAVE_CLOCK_MONOTONIC
        BASIC_CFLAGS += -DHAVE_CLOCK_MONOTONIC
 endif
 
+ifdef HAVE_BSD_SYSCTL
+       BASIC_CFLAGS += -DHAVE_BSD_SYSCTL
+endif
+
 ifeq ($(TCLTK_PATH),)
 NO_TCLTK = NoThanks
 endif