DISTCLEANFILES += $(SRCS:.fd=.C) $(SRCS:.fd=.h) $(SRCS:.fd=.c)
-EXTRA_DIST = fdfixc.sed fdfixh.sed fdfix.sh tmp_str.sed README $(SRCS)
+EXTRA_DIST = pch.h fdfixc.sed fdfixh.sed fdfix.sh tmp_str.sed README $(SRCS)
+
+BUILT_SOURCES = $(PCH_FILE)
# For (forms_fwd.h, forms_gettext.h) and support/std_string.h, respectively.
AM_CPPFLAGS += $(PCH_FLAGS) -I$(srcdir)/.. -I$(top_srcdir)/src -I..