+AC_ARG_WITH([ndbm],AS_HELP_STRING([--with-ndbm=ARG],[use -lARG to link with ndbm]),
+ [nmh_ndbm=$withval],[nmh_ndbm=autodetect])
+AC_ARG_WITH([ndbmheader],AS_HELP_STRING([--with-ndbmheader=ARG],[#include <ARG> to use ndbm]),
+ [nmh_ndbmheader=$withval],[nmh_ndbmheader=autodetect])
+
+if test "$nmh_ndbm" = "autodetect"; then
+ if test "$nmh_ndbmheader" != "autodetect"; then
+ AC_MSG_ERROR([must specify both --with-ndbm and --with-ndbmheader or neither])
+ else
+
+ dnl There are at least four implementations of ndbm, and
+ dnl several of those can be in different places at the whim
+ dnl of the system integrator. A good summary of this mess
+ dnl can be found at http://www.unixpapa.com/incnote/dbm.html
+
+ dnl Classic ndbm with no library required (eg NetBSD): try this
+ dnl first so we don't accidentally link in a pointless but harmless
+ dnl library in one of the later ndbm.h+libfoo tests:
+ NMH_CHECK_NDBM(ndbm.h,,,
+ dnl Berkeley DBv2 emulating ndbm: header in db.h:
+ NMH_CHECK_NDBM(db.h,db,,
+ dnl Berkeley DBv1 emulating ndbm:
+ NMH_CHECK_NDBM(ndbm.h,db,,
+ NMH_CHECK_NDBM(ndbm.h,db1,,
+ dnl Classic ndbm:
+ NMH_CHECK_NDBM(ndbm.h,ndbm,,
+ dnl glibc2.1 systems put db1 in a subdir:
+ NMH_CHECK_NDBM(db1/ndbm.h,db1,,
+ dnl GNU gdbm emulating ndbm, with header possibly in gdbm/
+ dnl and possibly needing gbdm_compat library:
+ NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm,,
+ NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm_compat -lgdbm,,
+ NMH_CHECK_NDBM(ndbm.h,gdbm,,
+ NMH_CHECK_NDBM(ndbm.h,gdbm_compat -lgdbm))))))))))