From 5b28b4a8a8e25a48cb973527462780240bb2ad66 Mon Sep 17 00:00:00 2001
From: Kevin Zheng <kevinz5000@gmail.com>
Date: Tue, 9 Apr 2019 14:36:11 +0200
Subject: [PATCH] Fix a build error on FreeBSD 12, bison 3.3.2, automake 1.16.1
 and BSD make by dropping the rules to run bison and use automake's built-in
 rules instead

---
 src/frontend/Makefile.am        | 8 ++------
 src/spicelib/parser/Makefile.am | 8 ++------
 2 files changed, 4 insertions(+), 12 deletions(-)

diff --git a/src/frontend/Makefile.am b/src/frontend/Makefile.am
index 6b8757c1b..b3e77b162 100644
--- a/src/frontend/Makefile.am
+++ b/src/frontend/Makefile.am
@@ -4,6 +4,8 @@ SUBDIRS = plotting help parser wdisp numparam trannoise
 DIST_SUBDIRS = plotting help parser wdisp numparam trannoise
 EXTRA_DIST = testcommands.c
 
+BUILT_SOURCES = parse-bison.h
+
 noinst_LTLIBRARIES = libfte.la
 
 libfte_la_SOURCES =	\
@@ -150,7 +152,6 @@ libfte_la_SOURCES =	\
 	parse.c		\
 	parse.h		\
 	parse-bison.y	\
-	parse-bison-y.h	\
 	points.c	\
 	points.h	\
 	postcoms.c	\
@@ -198,8 +199,3 @@ AM_CFLAGS = $(STATIC)
 AM_YFLAGS = -d
 
 MAINTAINERCLEANFILES = Makefile.in
-
-$(srcdir)/parse.c : parse-bison.c
-
-parse-bison.c : parse-bison.y
-	$(am__skipyacc) $(YACCCOMPILE) -o $@ $<
diff --git a/src/spicelib/parser/Makefile.am b/src/spicelib/parser/Makefile.am
index 807b52eb7..63ed603dc 100644
--- a/src/spicelib/parser/Makefile.am
+++ b/src/spicelib/parser/Makefile.am
@@ -2,6 +2,8 @@
 
 noinst_LTLIBRARIES = libinp.la
 
+BUILT_SOURCES = inpptree-parser.h
+
 libinp_la_SOURCES = \
 		ifeval.c	\
 		ifnewuid.c	\
@@ -60,18 +62,12 @@ libinp_la_SOURCES = \
 		inppname.c	\
 		inpptree.c	\
 		inpptree-parser.y \
-		inpptree-parser-y.h \
 		inpsymt.c	\
 		inptyplk.c	\
 		ptfuncs.c	\
 		sperror.c	\
 		inpxx.h
 
-$(srcdir)/inpptree.c : inpptree-parser.c
-
-inpptree-parser.c : inpptree-parser.y
-	$(am__skipyacc) $(YACCCOMPILE) -o $@ $<
-
 AM_CPPFLAGS = @AM_CPPFLAGS@ -I$(top_srcdir)/src/include -I$(top_srcdir)/src/frontend
 AM_CFLAGS = $(STATIC)
 AM_YFLAGS = -d