THRIFT-3138 "make check" parallel execution is underministic
diff --git a/tutorial/c_glib/Makefile.am b/tutorial/c_glib/Makefile.am
index 751b5ce..43748c0 100755
--- a/tutorial/c_glib/Makefile.am
+++ b/tutorial/c_glib/Makefile.am
@@ -18,6 +18,12 @@
#
AUTOMAKE_OPTIONS = subdir-objects serial-tests
+BUILT_SOURCES = \
+ gen-c_glib/calculator.h \
+ gen-c_glib/shared_service.h \
+ gen-c_glib/shared_types.h \
+ gen-c_glib/tutorial_types.h
+
AM_CFLAGS = -g -Wall -Wextra -pedantic $(GLIB_CFLAGS) $(GOBJECT_CFLAGS) @GCOV_CFLAGS@
AM_CPPFLAGS = -I$(top_srcdir)/lib/c_glib/src -Igen-c_glib
AM_LDFLAGS = $(GLIB_LIBS) $(GOBJECT_LIBS) @GCOV_LDFLAGS@