Cygwin: Fix handling of wait pipe hangup by properly detecting EOF

[lttng-tools.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 286aa89330b8a4fb0a1872dae475a4ec4761fc6e..dc2af5829f7d1824e32c8d436b059abe0c5d93af 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([lttng-tools],[2.0.4],[dgoulet@efficios.com],[],[http://lttng.org])
+AC_INIT([lttng-tools],[2.0.5],[dgoulet@efficios.com],[],[http://lttng.org])
 AC_CONFIG_AUX_DIR([config])
 AC_CANONICAL_TARGET
 AC_CANONICAL_HOST
@@ -138,13 +138,16 @@ AC_ARG_ENABLE(lttng-ust,
        lttng_ust_support=$enableval, lttng_ust_support=yes)
 
 AS_IF([test "x$lttng_ust_support" = "xyes"], [
-       AC_CHECK_LIB([lttng-ust-ctl], [ustctl_create_session], [],
-               [AC_MSG_ERROR([Cannot find LTTng-UST. Use [LDFLAGS]=-Ldir to specify its location, or specify --disable-lttng-ust to build lttng-tools without LTTng-UST support.])]
+       AC_CHECK_LIB([lttng-ust-ctl], [ustctl_create_session],
+               [
+                       AC_DEFINE([HAVE_LIBLTTNG_UST_CTL], [1], [has LTTng-UST control support])
+                       lttng_ust_ctl_found=yes
+               ],
+               [AC_MSG_ERROR([Cannot find LTTng-UST. Use [LDFLAGS]=-Ldir to specify its location, or specify --disable-lttng-ust to build lttng-tools without LTTng-UST support.])],
+               [-lurcu-common -lurcu-bp -lurcu-cds]
        )
 ])
-
-AM_CONDITIONAL([HAVE_LIBLTTNG_UST_CTL], [ test "x$ac_cv_lib_lttng_ust_ctl_ustctl_create_session" = "xyes" ])
-
+AM_CONDITIONAL([HAVE_LIBLTTNG_UST_CTL], [test "x$lttng_ust_ctl_found" = xyes])
 AC_CHECK_FUNCS([sched_getcpu sysconf])
 
 # check for dlopen
@@ -184,6 +187,13 @@ AX_CONFIG_FEATURE(
 )
 AM_CONDITIONAL([COMPAT_EPOLL], [ test "$enable_epoll" = "yes" ])
 
+case "${host}" in
+    # All symbols must be resolved at link time on Cygwin/MinGW/Windows,
+    # else libtool will not be able to build shared libraries.
+    *-*-cygwin*)
+    LDFLAGS="-Wl,-no-undefined $LDFLAGS";;
+esac
+
 AC_SYS_LARGEFILE
 AC_PROG_CC
 LT_INIT