From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Sun, 27 Feb 2022 14:11:09 +0000 (+0000)
Subject: Build: Allow Local/Makefile "USE_NDBM=y" to override OS/Makefile-*
X-Git-Tag: exim-4.96-RC0~50
X-Git-Url: https://git.exim.org/exim.git/commitdiff_plain/45329490797bbaf91000dfa992a97a811f306b70

Build: Allow Local/Makefile "USE_NDBM=y" to override OS/Makefile-*
---

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 6c0ac922d..6ede1dc95 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -1841,6 +1841,9 @@ USE_DB=yes
 .endd
 Similarly, for gdbm you set USE_GDBM, and for tdb you set USE_TDB. An
 error is diagnosed if you set more than one of these.
+.new
+You can set USE_NDBM if needed to override an operating system default.
+.wen
 
 At the lowest level, the build-time configuration sets none of these options,
 thereby assuming an interface of type (1). However, some operating system
@@ -1855,7 +1858,11 @@ in one of these lines:
 .code
 DBMLIB = -ldb
 DBMLIB = -ltdb
+DBMLIB = -lgdbm -lgdbm_compat
 .endd
+.new
+The last of those was for a Linux having GDBM provide emulated NDBM facilities.
+.wen
 Settings like that will work if the DBM library is installed in the standard
 place. Sometimes it is not, and the library's header file may also not be in
 the default path. You may need to set INCLUDE to specify where the header
diff --git a/src/src/buildconfig.c b/src/src/buildconfig.c
index a680b344a..a1b5485cd 100644
--- a/src/src/buildconfig.c
+++ b/src/src/buildconfig.c
@@ -51,7 +51,7 @@ typedef struct {
   char *data;
 } save_item;
 
-static const char *db_opts[] = { "", "USE_DB", "USE_GDBM", "USE_TDB" };
+static const char *db_opts[] = { "", "USE_DB", "USE_GDBM", "USE_TDB", "USE_NDBM" };
 
 static int have_ipv6 = 0;
 static int have_iconv = 0;
diff --git a/src/src/config.h.defaults b/src/src/config.h.defaults
index 716f92ed3..65d33ac24 100644
--- a/src/src/config.h.defaults
+++ b/src/src/config.h.defaults
@@ -181,6 +181,7 @@ Do not put spaces between # and the 'define'.
 #define USE_GDBM
 #define USE_GNUTLS
 #define AVOID_GNUTLS_PKCS11
+#define USE_NDBM
 #define USE_OPENSSL
 #define USE_READLINE
 #define USE_TCP_WRAPPERS