[longomatch] libcesarplayer: fix build in windows with mingw

[Andoni Morales Alastruey <amorales src gnome org>]

commit 92c0ffb3d1ea3fd65a2a43a109aff9e25d1c7d2a
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Wed Aug 22 19:02:29 2012 +0200

    libcesarplayer: fix build in windows with mingw

 configure.ac               |   12 ++++++++++++
 libcesarplayer/Makefile.am |    4 ++++
 2 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 124de0e..c7854aa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -87,6 +87,18 @@ AC_SUBST(CESARPLAYER_LIBS)
 
 #SHAVE_INIT([build/m4/shave], [enable])
 
+AC_MSG_CHECKING([if building for some Win32 platform])
+case "$host" in
+  *-*-mingw*|*-*-cygwin*)
+    platform_win32=yes
+    ;;
+  *)
+    platform_win32=no
+    ;;
+esac
+AC_MSG_RESULT($platform_win32)
+AM_CONDITIONAL(PLATFORM_WIN32, test x$platform_win32 = xyes)
+
 dnl package checks, per config
 
 AC_CONFIG_FILES([env], [chmod +x env])
diff --git a/libcesarplayer/Makefile.am b/libcesarplayer/Makefile.am
index 0bc96b0..6c623a1 100644
--- a/libcesarplayer/Makefile.am
+++ b/libcesarplayer/Makefile.am
@@ -42,6 +42,10 @@ libcesarplayer_la_SOURCES = \
 
 libcesarplayer_la_LDFLAGS = \
 	$(CESARPLAYER_LIBS)
+
+if PLATFORM_WIN32
+libcesarplayer_la_LDFLAGS += -no-undefined
+endif
 	
 CLEANFILES = $(BUILT_SOURCES)