$NetBSD: patch-examples_Make,v 1.1 2024/03/21 20:44:40 wiz Exp $

build examples out of tree and assume pkgsrc for dependencies

--- examples/Make.orig	2024-03-05 18:02:16.000000000 +0000
+++ examples/Make
@@ -1,50 +1,32 @@
-# Some of these examples require Bison
+# To build the examples:
+# > make
 #
-# Change INCBOOST and LIBBOOST below to point to your Boost install paths
+# url_boost and wc_boost require devel/boost-{headers,libs}
+# > make boostexamples
 #
-# To quickly build the examples:
-# > make -f Make
-#
-# Or use configure and make to build:
-# > ./configure --enable-examples && make
-#
-# Bison C++ examples are built with:
-# > make -f Make examplesxx
-#
-# flexexample9xx, reflexexample9xx, flexexample11xx, reflexexample11xx require Bison 3.0 or greater:
-# > make -f Make examples3.2
-#
-# url_boost and wc_boost requires Boost.Regex installed:
-# > make -f Make boostexamples
-# Boost.regex normally includes libboost_regex-mt, if not change LIBBOOST below
-#
-# url_pcre2 and wc_pcre2 requires PCRE2 installed:
-# > make -f Make pcre2examples
+# url_pcre2 and wc_pcre2 require devel/pcre2
+# > make pcre2examples
+
+CC        = @CC@
+CXX       = @CXX@
+
+CFLAGS    = -O2 -I. -I@PREFIX@/include -Wall -Wunused -Wextra #-DDEBUG
+CXXFLAGS  = $(CFLAGS) -fpermissive
 
-CXX       = c++
-REFLEX    = ../bin/reflex
+REFLEX    = @PREFIX@/bin/reflex
 REFLAGS   =
-LIBREFLEX = ../lib/libreflex.a
+LIBREFLEX = @PREFIX@/lib/libreflex.a
 
-YACC      = bison -y
-BISON     = bison
+YACC      = @PREFIX@/bin/bison -y
+BISON     = @PREFIX@/bin/bison
 
-INCPCRE2  = /opt/local/include
-LIBPCRE2  = -L/opt/local/lib -lpcre2-8
+INCPCRE2  = @PREFIX@/include
+LIBPCRE2  = -L@PREFIX@/lib -lpcre2-8
 
-INCBOOST  = /opt/local/include
-# LIBBOOST  = -L/opt/local/lib -lboost_regex
-# LIBBOOST  = -L/opt/homebrew/lib -lboost_regex-mt
-LIBBOOST  = -L/opt/local/lib -lboost_regex-mt
-
-CXXOFLAGS = -O2
-CXXWFLAGS = -Wall -Wunused -Wextra
-CXXIFLAGS = -I. -I../include -I $(INCBOOST)
-CXXMFLAGS =
-# CXXMFLAGS =-DDEBUG
-CXXFLAGS  = $(CXXWFLAGS) $(CXXOFLAGS) $(CXXIFLAGS) $(CXXMFLAGS)
+INCBOOST  = @PREFIX@/include
+LIBBOOST  = -L@PREFIX@/lib -lboost_regex
 
-all:		examples examplesxx
+all:		examples examplesxx examples3.2
 
 .PHONY:		examples examplesxx examples3.2 boostexamples pcre2examples
 
@@ -135,7 +117,7 @@ flexexample2:		flexexample2.l
 flexexample3:		flexexample3.l flexexample3.y
 			$(YACC) -d flexexample3.y
 			$(REFLEX) $(REFLAGS) --flex --bison --header-file flexexample3.l
-			$(CC) $(CXXFLAGS) -c y.tab.c
+			$(CC) $(CFLAGS) -c y.tab.c
 			$(CXX) $(CXXFLAGS) -o $@ y.tab.o lex.yy.cpp $(LIBREFLEX)
 			./flexexample3 < flexexample3.test
 
@@ -148,7 +130,7 @@ flexexample3xx:		flexexample3.lxx flexex
 flexexample4:		flexexample4.l flexexample4.y
 			$(YACC) -d flexexample4.y
 			$(REFLEX) $(REFLAGS) --flex --bison-bridge --header-file flexexample4.l
-			$(CC) $(CXXFLAGS) -c y.tab.c
+			$(CC) $(CFLAGS) -c y.tab.c
 			$(CXX) $(CXXFLAGS) -o $@ y.tab.o lex.yy.cpp $(LIBREFLEX)
 			./flexexample4 < flexexample4.test
 
@@ -161,7 +143,7 @@ flexexample4xx:		flexexample4.lxx flexex
 flexexample5:		flexexample5.l flexexample5.y
 			$(YACC) -d flexexample5.y
 			$(REFLEX) $(REFLAGS) --flex --bison-bridge --header-file flexexample5.l
-			$(CC) $(CXXFLAGS) -c y.tab.c
+			$(CC) $(CFLAGS) -c y.tab.c
 			$(CXX) $(CXXFLAGS) -o $@ y.tab.o lex.yy.cpp $(LIBREFLEX)
 			./flexexample5 < flexexample5.test
 
@@ -179,7 +161,7 @@ flexexample6:		flexexample6.l
 flexexample7:		flexexample7.l flexexample7.y
 			$(YACC) -d flexexample7.y
 			$(REFLEX) $(REFLAGS) --flex --bison-locations --header-file flexexample7.l
-			$(CC) $(CXXFLAGS) -c y.tab.c
+			$(CC) $(CFLAGS) -c y.tab.c
 			$(CXX) $(CXXFLAGS) -o $@ y.tab.o lex.yy.cpp $(LIBREFLEX)
 			./flexexample7 < flexexample7.test
 
@@ -192,7 +174,7 @@ flexexample7xx:		flexexample7.lxx flexex
 flexexample8:		flexexample8.l flexexample8.y
 			$(YACC) -d flexexample8.y
 			$(REFLEX) $(REFLAGS) --flex --bison-locations --bison-bridge --header-file flexexample8.l
-			$(CC) $(CXXFLAGS) -c y.tab.c
+			$(CC) $(CFLAGS) -c y.tab.c
 			$(CXX) $(CXXFLAGS) -o $@ y.tab.o lex.yy.cpp $(LIBREFLEX)
 			./flexexample8 < flexexample8.test
 
@@ -472,7 +454,7 @@ minic:		minic.l minic.y minic.hpp
 		$(CXX) $(CXXFLAGS) -o $@ parser.cpp scanner.cpp $(LIBREFLEX)
 		rm -f minicdemo.class
 		./minic minicdemo.c
-		java minicdemo
+		#java minicdemo
 
 lua2lisp:	lua.l lua.y lua.hpp
 		$(BISON) -d lua.y