File add-pthread-to-Makefile.in.patch of Package wayland.3007

Index: wayland-1.2.1/src/Makefile.in
===================================================================
--- wayland-1.2.1.orig/src/Makefile.in
+++ wayland-1.2.1/src/Makefile.in
@@ -402,7 +402,7 @@ libwayland_client_la_SOURCES = \
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = wayland-client.pc wayland-server.pc
 AM_CPPFLAGS = $(FFI_CFLAGS)
-AM_CFLAGS = $(GCC_CFLAGS)
+AM_CFLAGS = $(GCC_CFLAGS) -pthread
 protocoldir = $(top_srcdir)/protocol
 @ENABLE_SCANNER_FALSE@wayland_scanner = wayland-scanner
 @ENABLE_SCANNER_TRUE@wayland_scanner = $(top_builddir)/src/wayland-scanner