X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=configure.ac;h=dd7dddc818251b07cc040a21787b11d595d2836c;hp=aa4220de70739608db734aa7b87d2e991386d941;hb=04151c371f67ad69919159ff0fb74c67f12149fd;hpb=81ba8833b7078b74f7b7f4acd62b975cb206fb4e

diff --git a/configure.ac b/configure.ac
index aa4220de7..dd7dddc81 100644
--- a/configure.ac
+++ b/configure.ac
@@ -127,6 +127,10 @@ AC_CHECK_FUNCS([ \
 	strtoull dirfd gethostbyname2 getipnodebyname epoll_create1 \
 ])
 
+# Check if clock_gettime, timer_create, timer_settime, and timer_delete are available in lib rt, and if so,
+# add -lrt to LIBS
+AC_CHECK_LIB([rt], [clock_gettime, timer_create, timer_settime, timer_delete])
+
 # Babeltrace viewer check
 AC_ARG_WITH([babeltrace-bin],
 	AS_HELP_STRING([--with-babeltrace-bin],
@@ -320,7 +324,7 @@ PKG_CHECK_MODULES([POPT], [popt],
 	]
 )
 
-AM_PATH_XML2(2.7.6, true, AC_MSG_ERROR(No supported version of libxml2 found.))
+PKG_CHECK_MODULES([libxml2], [libxml-2.0 >= 2.7.6])
 
 # Check for uuid in system libs
 AC_CHECK_FUNCS([uuid_generate],
@@ -365,6 +369,8 @@ PKG_CHECK_MODULES([UUID], [uuid],
 AM_CONDITIONAL([LTTNG_BUILD_WITH_LIBUUID], [test "x$link_with_libuuid" = "xyes"])
 AM_CONDITIONAL([LTTNG_BUILD_WITH_LIBC_UUID], [test "x$link_with_libc_uuid" = "xyes"])
 
+AC_CHECK_FUNC([clock_gettime], [AC_DEFINE_UNQUOTED([LTTNG_HAVE_CLOCK_GETTIME], 1, [Has clock_gettime() support.])])
+
 # URCU library version needed or newer
 m4_define([WRONG_LIBURCU_MSG], [Userspace RCU (liburcu) >= 0.8.0 is needed])