Add options "aio" and "acl" to enable/disable libaio and acl support.

Upstream-Status: Pending

Signed-off-by: Kai Kang <kai.kang@windriver.com>

--- strace-4.8/configure.ac.orig	2013-06-21 15:37:52.145892182 +0800
+++ strace-4.8/configure.ac	2013-06-21 15:45:49.029909004 +0800
@@ -219,7 +219,6 @@ AC_CHECK_HEADERS(m4_normalize([
 	netinet/sctp.h
 	poll.h
 	stropts.h
-	sys/acl.h
 	sys/asynch.h
 	sys/conf.h
 	sys/epoll.h
@@ -231,6 +230,19 @@ AC_CHECK_HEADERS(m4_normalize([
 	sys/uio.h
 	sys/vfs.h
 ]))
+
+AC_ARG_ENABLE([acl],
+	[AS_HELP_STRING([--enable-acl], [turn on acl support])],
+	[case $enableval in
+	yes) 
+		AC_CHECK_HEADERS([sys/acl.h])
+		;;
+	no)  ;;
+	*)   AC_MSG_ERROR([bad value $enableval for aio option]) ;;
+	esac]
+	
+)
+
 AC_CHECK_HEADERS([linux/icmp.h linux/in6.h linux/netlink.h linux/if_packet.h],
                  [], [], [#include <stddef.h>
 #include <sys/socket.h>
@@ -301,10 +313,19 @@ AC_CHECK_SIZEOF([long])
 AC_CHECK_SIZEOF([long long])
 AC_CHECK_SIZEOF([rlim_t],,[#include <sys/resource.h>])
 
-AC_CHECK_HEADERS([libaio.h], [
-	AC_CHECK_MEMBERS([struct iocb.u.c.flags],,, [#include <libaio.h>])
-	AC_CHECK_DECLS([IO_CMD_PWRITE, IO_CMD_PWRITEV],,, [#include <libaio.h>])
-])
+AC_ARG_ENABLE([aio],
+	[AS_HELP_STRING([--enable-aio], [turn on libaio support])],
+	[case $enableval in
+	yes) 
+	AC_CHECK_HEADERS([libaio.h], [
+		AC_CHECK_MEMBERS([struct iocb.u.c.flags],,, [#include <libaio.h>])
+		AC_CHECK_DECLS([IO_CMD_PWRITE, IO_CMD_PWRITEV],,, [#include <libaio.h>])
+	])
+	;;
+	no)  ;;
+	*)   AC_MSG_ERROR([bad value $enableval for aio option]) ;;
+	esac]
+)
 
 AC_PATH_PROG([PERL], [perl])