From 24c18ee750d5716d8c293ef9677c9876457ef7cd Mon Sep 17 00:00:00 2001
From: Fabian Groffen <grobian@gentoo.org>
Date: Sat, 29 May 2021 13:51:22 +0200
Subject: mail-mta/exim-4.94.2-r2: allow moving away from sys-libs/db

Package-Manager: Portage-3.0.18, Repoman-3.0.2
Signed-off-by: Fabian Groffen <grobian@gentoo.org>
---
 mail-mta/exim/exim-4.94.2-r2.ebuild | 59 +++++++++++++++++++++++++++++--------
 mail-mta/exim/metadata.xml          |  2 ++
 2 files changed, 48 insertions(+), 13 deletions(-)

(limited to 'mail-mta')

diff --git a/mail-mta/exim/exim-4.94.2-r2.ebuild b/mail-mta/exim/exim-4.94.2-r2.ebuild
index c825df4517e4..1174eca77daa 100644
--- a/mail-mta/exim/exim-4.94.2-r2.ebuild
+++ b/mail-mta/exim/exim-4.94.2-r2.ebuild
@@ -5,7 +5,10 @@ EAPI="7"
 
 inherit db-use toolchain-funcs multilib pam systemd
 
-IUSE="arc +dane dcc +dkim dlfunc dmarc +dnsdb doc dovecot-sasl dsn elibc_glibc exiscan-acl gnutls idn ipv6 ldap lmtp maildir mbx mysql nis pam perl pkcs11 postgres +prdr proxy radius redis sasl selinux socks5 spf sqlite srs +srs-alt srs-native +ssl syslog tcpd +tpda X"
+IUSE="arc +dane dcc +dkim dlfunc dmarc +dnsdb doc dovecot-sasl
+dsn elibc_glibc exiscan-acl gdbm gnutls idn ipv6 ldap lmtp maildir mbx
+mysql nis pam perl pkcs11 postgres +prdr proxy radius redis sasl selinux
+socks5 spf sqlite srs +srs-alt srs-native +ssl syslog tdb tcpd +tpda X"
 REQUIRED_USE="
 	arc? ( dkim spf )
 	dane? ( ssl !gnutls )
@@ -26,6 +29,8 @@ REQUIRED_USE="
 # have left is to a) ignore the dependency (but that results in bug
 # #661164) or b) mask the usage of USE=dane with USE=gnutls.  Both are
 # incorrect, but b) is the only "correct" view from repoman.
+# We cannot express a required use for berkdb/gdbm/tdb because berkdb
+# and gdbm are both enabled in base profile
 
 SDIR=$([[ ${PV} == *_rc* ]]   && echo /test
 	 [[ ${PV} == *.*.*.* ]] && echo /fixes)
@@ -42,8 +47,10 @@ LICENSE="GPL-2"
 KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~ppc ~ppc64 ~sparc ~x86 ~x86-solaris"
 
 COMMON_DEPEND=">=sys-apps/sed-4.0.5
-	( >=sys-libs/db-3.2:= <sys-libs/db-6:= )
-	dev-libs/libpcre
+	dev-libs/libpcre:=
+	tdb? ( sys-libs/tdb:= )
+	!tdb? ( gdbm? ( sys-libs/gdbm:= ) )
+	!tdb? ( !gdbm? ( >=sys-libs/db-3.2:= <sys-libs/db-6:= ) )
 	idn? ( net-dns/libidn:= net-dns/libidn2:= )
 	perl? ( dev-lang/perl:= )
 	pam? ( sys-libs/pam )
@@ -58,8 +65,9 @@ COMMON_DEPEND=">=sys-apps/sed-4.0.5
 		)
 	)
 	ldap? ( >=net-nds/openldap-2.0.7 )
-	nis? (
-		elibc_glibc? (
+	elibc_glibc? (
+		net-libs/libnsl
+		nis? (
 			net-libs/libtirpc
 			>=net-libs/libnsl-1:=
 		)
@@ -80,7 +88,6 @@ COMMON_DEPEND=">=sys-apps/sed-4.0.5
 	sqlite? ( dev-db/sqlite )
 	radius? ( net-dialup/freeradius-client )
 	virtual/libiconv
-	elibc_glibc? ( net-libs/libnsl )
 	"
 	# added X check for #57206
 BDEPEND="virtual/pkgconfig"
@@ -173,6 +180,37 @@ src_configure() {
 		HAVE_ICONV=yes
 	EOC
 
+	# configure db implementation, Exim always needs one for its hints
+	# database, we prefer tdb and gdbm, since bdb is kind of getting
+	# less and less support
+	if use tdb ; then
+		cat >> Makefile <<- EOC
+			USE_TDB=yes
+			DBMLIB = -ltdb
+		EOC
+		sed -i -e 's:^USE_DB=yes:# USE_DB=yes:' Makefile || die
+		sed -i -e 's:^USE_GDBM=yes:# USE_GDBM=yes:' Makefile || die
+	elif use gdbm ; then
+		cat >> Makefile <<- EOC
+			USE_GDBM=yes
+			DBMLIB = -lgdbm
+		EOC
+		sed -i -e 's:^USE_DB=yes:# USE_DB=yes:' Makefile || die
+		sed -i -e 's:^USE_TDB=yes:# USE_TDB=yes:' Makefile || die
+	else
+		# use the "native" interfaces to the DBM and CDB libraries, support
+		# passwd and directory lookups by default
+		local DB_VERS="5.3 5.1 4.8 4.7 4.6 4.5 4.4 4.3 4.2 3.2"
+		cat >> Makefile <<- EOC
+			USE_DB=yes
+			# keep include in CFLAGS because exim.h -> dbstuff.h -> db.h
+			CFLAGS += -I$(db_includedir ${DB_VERS})
+			DBMLIB = -l$(db_libname ${DB_VERS})
+		EOC
+		sed -i -e 's:^USE_GDBM=yes:# USE_GDBM=yes:' Makefile || die
+		sed -i -e 's:^USE_TDB=yes:# USE_TDB=yes:' Makefile || die
+	fi
+
 	# if we use libiconv, now is the time to tell so
 	if use !elibc_glibc && use !elibc_musl ; then
 		cat >> Makefile <<- EOC
@@ -221,18 +259,13 @@ src_configure() {
 
 	#
 	# lookup methods
+	#
 
-	# use the "native" interfaces to the DBM and CDB libraries, support
-	# passwd and directory lookups by default
-	local DB_VERS="5.3 5.1 4.8 4.7 4.6 4.5 4.4 4.3 4.2 3.2"
+	# support passwd and directory lookups by default
 	cat >> Makefile <<- EOC
-		USE_DB=yes
 		LOOKUP_CDB=yes
 		LOOKUP_PASSWD=yes
 		LOOKUP_DSEARCH=yes
-		# keep include in CFLAGS because exim.h -> dbstuff.h -> db.h
-		CFLAGS += -I$(db_includedir ${DB_VERS})
-		DBMLIB = -l$(db_libname ${DB_VERS})
 	EOC
 
 	if ! use dnsdb; then
diff --git a/mail-mta/exim/metadata.xml b/mail-mta/exim/metadata.xml
index 3c76bb641e6b..de42f5fe5af2 100644
--- a/mail-mta/exim/metadata.xml
+++ b/mail-mta/exim/metadata.xml
@@ -45,6 +45,8 @@
 		<flag name="pkcs11">Require pkcs11 support in <pkg>net-libs/gnutls</pkg> with USE=gnutls</flag>
 		<flag name="redis">Adds support for querying <pkg>dev-db/redis</pkg></flag>
 		<flag name="prdr">Adds support for Per-Recipient Data Response</flag>
+		<flag name="tdb">Use <pkg>sys-libs/tdb</pkg> for internal database
+			storage (such as hints database)</flag>
 		<flag name="tpda">Adds support for Transport Post-Delivery Actions</flag>
 	</use>
 	<upstream>
-- 
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