Use configure options rather than hard coding in Makefiles

--- m4-1.4.3/doc/Makefile.in
+++ m4-1.4.3/doc/Makefile.in
@@ -27,8 +27,7 @@
 MAKEINFO = makeinfo
 TEXI2DVI = texi2dvi
 
-prefix = @prefix@
-infodir = $(prefix)/info
+infodir = @infodir@
 
 .SUFFIXES:
 
--- m4-1.4.3/Makefile.in
+++ m4-1.4.3/Makefile.in
@@ -40,8 +40,8 @@
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
-bindir = $(exec_prefix)/bin
-infodir = $(prefix)/info
+bindir = @bindir@
+infodir = @infodir@
 
 MDEFINES = CC='$(CC)' CFLAGS='$(CFLAGS)' LDFLAGS='$(LDFLAGS)' LIBS='$(LIBS)' \
 prefix='$(prefix)' exec_prefix='$(exec_prefix)' \
--- m4-1.4.3/src/Makefile.in
+++ m4-1.4.3/src/Makefile.in
@@ -35,7 +35,7 @@
 prefix = @prefix@
 exec_prefix = @exec_prefix@
 transform = @program_transform_name@
-bindir = $(exec_prefix)/bin
+bindir = @bindir@
 
 COMPILE = $(CC) -c $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)
 LINK = $(CC) $(LDFLAGS) -o $@