configure: support HAVE_BSD_SYSCTL option
On BSD-compatible systems some information such as the number
of available CPUs may only be available via the sysctl function.
Add support for a HAVE_BSD_SYSCTL option complete with autoconf
support and include the sys/syctl.h header when the option is
enabled to make the sysctl function available.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Makefile b/Makefile
index c44eb3a..fdac1b9 100644
--- a/Makefile
+++ b/Makefile
@@ -348,6 +348,8 @@
#
# 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
@$(SHELL_PATH) ./GIT-VERSION-GEN
@@ -1414,6 +1416,10 @@
BASIC_CFLAGS += -DHAVE_CLOCK_MONOTONIC
endif
+ifdef HAVE_BSD_SYSCTL
+ BASIC_CFLAGS += -DHAVE_BSD_SYSCTL
+endif
+
ifeq ($(TCLTK_PATH),)
NO_TCLTK = NoThanks
endif
