gdbm 1.8 fails to install in prefix properly

[Assar Westerlund]

Even when running configure --prefix=<something>, make install fails
to install things into something.  The following patch should make
things better.

/assar

--- Makefile.in.orig    Sun Aug  5 05:04:11 2001
+++ Makefile.in Sun Aug  5 05:09:07 2001
@@ -31,18 +31,16 @@
 LDFLAGS =
 
 # Common prefix for installation directories
-prefix = /usr/local
-exec_prefix = $(prefix)
-binprefix = $(exec_prefix)
-manprefix = $(prefix)
+prefix = @prefix@
+exec_prefix = @exec_prefix@
 
 # Directory in which to put libgdbm.a.
-libdir = $(exec_prefix)/lib
+libdir = @libdir@
 # The include directory for gdbm.h and dbm.h.
-includedir = $(prefix)/include
+includedir = @includedir@
 # Info and man directories.
-infodir = $(prefix)/info
-man3dir = $(prefix)/man/man3
+infodir = @infodir@
+man3dir = @mandir@/man3
 manext = 3
 
 #### End of system configuration section. ####