From e14c9f0d0edff5161fbe2d87b33acb7744950e6c Mon Sep 17 00:00:00 2001
From: Sebastien Boisvert <sboisvert@gydle.com>
Date: Wed, 1 Jun 2016 23:02:31 -0400
Subject: [PATCH] Port: build shared libraries in Cygwin

Link: https://lists.lttng.org/pipermail/lttng-dev/2016-May/026081.html
Signed-off-by: Sebastien Boisvert <sboisvert@gydle.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---
 Makefile.am  | 3 +++
 configure.ac | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index 672beec..8e25fd9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -8,6 +8,9 @@ AM_LDFLAGS=-version-info $(URCU_LIBRARY_VERSION)
 if !LIBC_INCLUDES_PTHREAD
 AM_LDFLAGS+=-lpthread
 endif
+if USE_CYGWIN
+AM_LDFLAGS+=-no-undefined
+endif
 AM_CFLAGS=-Wall
 
 SUBDIRS = . doc tests
diff --git a/configure.ac b/configure.ac
index 13f2fd8..9fc7859 100644
--- a/configure.ac
+++ b/configure.ac
@@ -133,6 +133,11 @@ AS_CASE([$host],[*-*-linux-androideabi],
 	[AM_CONDITIONAL(TARGET_IS_ANDROID, false)]
 )
 
+AS_CASE([$host],[*-cygwin*],
+	[AM_CONDITIONAL(USE_CYGWIN, true)],
+	[AM_CONDITIONAL(USE_CYGWIN, false)]
+)
+
 AC_SUBST(ARCHTYPE)
 AC_SUBST(SUBARCHTYPE)
 
-- 
2.34.1