X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvppapigen.am;h=fe9ff03ecabbf00422f1983704b7a3b8aa26733f;hb=5908e18faaa613e2f43619da3425a0a859705051;hp=5c25e1ec6f498b0acb388343c16a83b269101c67;hpb=006eb478bb7a14ba7ba4199fecce29ebc495fb9c;p=vpp.git

diff --git a/src/vppapigen.am b/src/vppapigen.am
index 5c25e1ec6f4..fe9ff03ecab 100644
--- a/src/vppapigen.am
+++ b/src/vppapigen.am
@@ -13,20 +13,17 @@
 
 bin_PROGRAMS += vppapigen
 
-# We cannot rely on BUILT_SOURCES here as other built sources are relying
-# on vppapigen, so make can start compiling lex.c before gram.h is created.
-# This way we introduce new dependency by running C preprocessor.
-
-tools/vppapigen/lex_e.c: tools/vppapigen/lex.c tools/vppapigen/gram.y
+tools/vppapigen/gram.h: tools/vppapigen/gram.y
 	@$(YACC) -d @srcdir@/tools/vppapigen/gram.y
 	@mv y.tab.h tools/vppapigen/gram.h
 	@rm y.tab.c
-	@$(CC) -I. -E -o $@ $<
 
-vppapigen_SOURCES = tools/vppapigen/gram.y tools/vppapigen/lex_e.c tools/vppapigen/node.c
+tools/vppapigen/lex.o: tools/vppapigen/gram.h
+tools/vppapigen/node.o: tools/vppapigen/gram.h
+
+vppapigen_SOURCES = tools/vppapigen/gram.y tools/vppapigen/lex.c tools/vppapigen/node.c
 vppapigen_LDADD = libvppinfra.la
 vppapigen_LDFLAGS = -static
 
 CLEANFILES += tools/vppapigen/gram.c tools/vppapigen/gram.h
-CLEANFILES += tools/vppapigen/lex_e.c
 # vi:syntax=automake