let BUILDFIRST just build first, using the same trick guenther@ did in

kernel Makefiles (thank you!), also add lex and yacc generated files to
that list.

Let those lex/yacc variables be defined for bsd.lib.mk as well.

Complete the SRCS -> OBJS hints with the library dependency

This should fix most dependency problems.

Commit now, so that people can check if something else is still amiss.
krw@ agrees

3 files changed, 20 insertions, 9 deletions

diff --git a/share/mk/bsd.dep.mk b/share/mk/bsd.dep.mk
index 43774cc8650..14ab062d025 100644
--- a/share/mk/bsd.dep.mk
+++ b/share/mk/bsd.dep.mk
@@ -1,4 +1,4 @@
-#	$OpenBSD: bsd.dep.mk,v 1.18 2017/07/03 15:11:02 espie Exp $
+#	$OpenBSD: bsd.dep.mk,v 1.19 2017/07/04 00:59:11 espie Exp $
 #	$NetBSD: bsd.dep.mk,v 1.12 1995/09/27 01:15:09 christos Exp $
 
 .if !target(depend)
@@ -31,12 +31,18 @@ tags:
 
 # explicitly tag most source files
 .for i in ${SRCS:N*.[hyl]:N*.sh} ${_LEXINTM} ${_YACCINTM}
-${i:R:S/$/.o/}: $i
+# assume libraries
+${i:R:S/$/.o/} ${i:R:S/$/.po/} ${i:R:S/$/.so/} ${i:R:S/$/.do/}: $i
 .endfor
 
 CLEANFILES += ${DEPS} .depend
+
 BUILDFIRST ?=
 BUILDAFTER ?=
-.if !empty(BUILDFIRST) && !empty(BUILDAFTER)
-${BUILDAFTER}: ${BUILDFIRST}
+.if !empty(BUILDAFTER)
+.  for i in ${BUILDFIRST} ${_LEXINTM} ${_YACCINTM}
+.    if !exists($i)
+${BUILDAFTER}: $i
+.    endif
+.  endfor
 .endif
diff --git a/share/mk/bsd.lib.mk b/share/mk/bsd.lib.mk
index d75c3d32146..b09ae64f225 100644
--- a/share/mk/bsd.lib.mk
+++ b/share/mk/bsd.lib.mk
@@ -1,4 +1,4 @@
-#	$OpenBSD: bsd.lib.mk,v 1.86 2017/07/02 17:55:14 espie Exp $
+#	$OpenBSD: bsd.lib.mk,v 1.87 2017/07/04 00:59:11 espie Exp $
 #	$NetBSD: bsd.lib.mk,v 1.67 1996/01/17 20:39:26 mycroft Exp $
 #	@(#)bsd.lib.mk	5.26 (Berkeley) 5/2/91
 
@@ -183,6 +183,10 @@ BUILDAFTER += ${_LIBS}
 
 OBJS+=	${SRCS:N*.h:R:S/$/.o/}
 DEPS+=	${OBJS:R:S/$/.d/}
+
+_LEXINTM?=${SRCS:M*.l:.l=.c}
+_YACCINTM?=${SRCS:M*.y:.y=.c}
+
 BUILDAFTER += ${OBJS}
 
 lib${LIB}.a: ${OBJS}
@@ -245,7 +249,8 @@ ${DIST_LIB}: ${SELECTED_DOBJS}
 
 .if !target(clean)
 clean: _SUBDIRUSE
-	rm -f a.out [Ee]rrs mklog *.core ${CLEANFILES}
+	rm -f a.out [Ee]rrs mklog *.core y.tab.h \
+	    ${_LEXINTM} ${_YACCINTM} ${CLEANFILES}
 	rm -f lib${LIB}.a ${OBJS}
 	rm -f lib${LIB}_g.a ${GOBJS}
 	rm -f lib${LIB}_p.a ${POBJS}
diff --git a/share/mk/bsd.prog.mk b/share/mk/bsd.prog.mk
index c86512e4409..bf852c2c62f 100644
--- a/share/mk/bsd.prog.mk
+++ b/share/mk/bsd.prog.mk
@@ -1,4 +1,4 @@
-#	$OpenBSD: bsd.prog.mk,v 1.72 2017/07/01 14:41:54 espie Exp $
+#	$OpenBSD: bsd.prog.mk,v 1.73 2017/07/04 00:59:11 espie Exp $
 #	$NetBSD: bsd.prog.mk,v 1.55 1996/04/08 21:19:26 jtc Exp $
 #	@(#)bsd.prog.mk	5.26 (Berkeley) 6/25/91
 
@@ -74,8 +74,8 @@ SRCS?=	${PROG}.c
 OBJS+=	${SRCS:N*.h:N*.sh:R:S/$/.o/}
 DEPS+=	${OBJS:R:S/$/.d/}
 
-_LEXINTM+=${SRCS:M*.l:.l=.c}
-_YACCINTM+=${SRCS:M*.y:.y=.c}
+_LEXINTM?=${SRCS:M*.l:.l=.c}
+_YACCINTM?=${SRCS:M*.y:.y=.c}
 .  endif
 
 .  if defined(OBJS) && !empty(OBJS)