--- Makefile.in.orig	1998-12-29 05:17:43.000000000 +0800
+++ Makefile.in	2014-06-11 20:35:12.384582119 +0800
@@ -2,14 +2,15 @@
 #
 # My test system is Linux 2.1.30, gcc 2.7.2, libc 5.4.27
 
-CC=@CC@
-CPP=@CXX@
+CC=@CC@ @CFLAGS@
+CPP=@CXX@ @CXXFLAGS@
 
 #seek_set_hdr is a hack for Sun OS (and others? I hope not)
-CPPFLAGS=-g -Wall @DEFS@ @seek_set_hdr@
+CPPFLAGS=@CPPFLAGS@ @DEFS@ @seek_set_hdr@
 LD=@ld@
+LDFLAGS=@LDFLAGS@
 
-CCFLAGS=-O3 @DEFS@
+CCFLAGS=@DEFS@
 LIBOBJS=wordwrap.o nullproc.o tblock.o scan_num.o map_chars.o col-align.o \
 	compat.o num_unit_probe.o part_num_probe.o
 AR=ar
@@ -86,7 +87,7 @@ liboutfmt.a: $(LIBOBJS)
 	$(RANLIB) $@
 
 rtest2:	rtest2.o $(READER) tblock.o
-	g++ -o rtest2 rtest2.o $(READER) tblock.o
+	$(CPP) -o rtest2 rtest2.o $(READER) tblock.o
 
 fmt-text.o: text-fmt.o text-table.o
 	$(LD) -r -o $@ text-fmt.o text-table.o
@@ -107,10 +108,10 @@ gopt.o: getopt.o getopt1.o
 	$(LD) -r -o gopt.o getopt.o getopt1.o
 
 word2x: $(PROGOBJS)
-	$(CPP) -o $@ $(PROGOBJS)
+	$(CPP) -o $@ $(PROGOBJS) $(LDFLAGS)
 
 install: $(TARGETS) $(MANP)
-	@INSTALL@ $(MANP) -m 644 @mandir@/man1
+	@INSTALL_DATA@ $(MANP) $(DESTDIR)@mandir@/man1
 	for I in $(TARGETS); do \
-		@INSTALL@ $${I} -m 755 @bindir@; \
+		@INSTALL_PROGRAM@ $${I} $(DESTDIR)@bindir@; \
 	done