From: Michael Jeanson <mjeanson@efficios.com>
Date: Wed, 3 Aug 2016 21:59:16 +0000 (-0400)
Subject: Port: Detect platforms where librt is required
X-Git-Tag: v2.9.0-rc1~62
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=fbc08f38de61a27756c2e667715db8dce7fcb15e;p=lttng-tools.git

Port: Detect platforms where librt is required

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/configure.ac b/configure.ac
index aa4220de7..5cfe97315 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],
diff --git a/src/bin/lttng-consumerd/Makefile.am b/src/bin/lttng-consumerd/Makefile.am
index 7c6b0275e..acb8d7d44 100644
--- a/src/bin/lttng-consumerd/Makefile.am
+++ b/src/bin/lttng-consumerd/Makefile.am
@@ -13,8 +13,7 @@ lttng_consumerd_LDADD = \
 	   $(top_builddir)/src/common/libcommon.la \
 	   $(top_builddir)/src/common/index/libindex.la \
 	   $(top_builddir)/src/common/health/libhealth.la \
-	   $(top_builddir)/src/common/testpoint/libtestpoint.la \
-	   -lrt
+	   $(top_builddir)/src/common/testpoint/libtestpoint.la
 
 if HAVE_LIBLTTNG_UST_CTL
 lttng_consumerd_LDADD += -llttng-ust-ctl
diff --git a/src/bin/lttng-relayd/Makefile.am b/src/bin/lttng-relayd/Makefile.am
index 07eb73223..4857074df 100644
--- a/src/bin/lttng-relayd/Makefile.am
+++ b/src/bin/lttng-relayd/Makefile.am
@@ -23,7 +23,7 @@ lttng_relayd_SOURCES = main.c lttng-relayd.h utils.h utils.c cmd.h \
                        tracefile-array.c tracefile-array.h
 
 # link on liblttngctl for check if relayd is already alive.
-lttng_relayd_LDADD = -lrt -lurcu-common -lurcu \
+lttng_relayd_LDADD = -lurcu-common -lurcu \
 		$(top_builddir)/src/lib/lttng-ctl/liblttng-ctl.la \
 		$(top_builddir)/src/common/sessiond-comm/libsessiond-comm.la \
 		$(top_builddir)/src/common/hashtable/libhashtable.la \
diff --git a/src/bin/lttng-sessiond/Makefile.am b/src/bin/lttng-sessiond/Makefile.am
index 29f48c9cc..423866139 100644
--- a/src/bin/lttng-sessiond/Makefile.am
+++ b/src/bin/lttng-sessiond/Makefile.am
@@ -42,7 +42,7 @@ endif
 lttng_sessiond_SOURCES += lttng-sessiond.h main.c
 
 # link on liblttngctl for check if sessiond is already alive.
-lttng_sessiond_LDADD = -lrt -lurcu-common -lurcu \
+lttng_sessiond_LDADD = -lurcu-common -lurcu \
 		$(top_builddir)/src/lib/lttng-ctl/liblttng-ctl.la \
 		$(top_builddir)/src/common/sessiond-comm/libsessiond-comm.la \
 		$(top_builddir)/src/common/kernel-ctl/libkernel-ctl.la \
diff --git a/src/common/Makefile.am b/src/common/Makefile.am
index 37c451a45..e63ddeb73 100644
--- a/src/common/Makefile.am
+++ b/src/common/Makefile.am
@@ -76,7 +76,6 @@ libcommon_la_SOURCES = error.h error.c utils.c utils.h runas.c runas.h \
                        filter.c filter.h context.c context.h
 
 libcommon_la_LIBADD = \
-		-lrt \
 		$(top_builddir)/src/common/config/libconfig.la
 if LTTNG_BUILD_WITH_LIBUUID
 libcommon_la_LIBADD += -luuid
diff --git a/src/common/sessiond-comm/Makefile.am b/src/common/sessiond-comm/Makefile.am
index 32ec058b3..8f0a839b6 100644
--- a/src/common/sessiond-comm/Makefile.am
+++ b/src/common/sessiond-comm/Makefile.am
@@ -6,4 +6,3 @@ noinst_LTLIBRARIES = libsessiond-comm.la
 libsessiond_comm_la_SOURCES = sessiond-comm.c sessiond-comm.h \
                               inet.c inet.h inet6.c inet6.h \
                               relayd.h agent.h
-libsessiond_comm_la_LIBADD = -lrt