diff --git a/share/msgdef/Makefile b/share/msgdef/Makefile
--- a/share/msgdef/Makefile
+++ b/share/msgdef/Makefile
@@ -1,4 +1,3 @@
-
 PACKAGE=	locales
 LOCALEDIR=	${SHAREDIR}/locale
 FILESNAME=	LC_MESSAGES
@@ -28,6 +27,7 @@
 LOCALES+=	ru_RU.ISO8859-5
 LOCALES+=	ru_RU.KOI8-R
 LOCALES+=	sk_SK.ISO8859-2
+LOCALES+=	sl_SI.ISO8859-2
 LOCALES+=	sr_RS.ISO8859-5
 LOCALES+=	tr_TR.ISO8859-9
 LOCALES+=	uk_UA.CP1251
@@ -47,6 +47,7 @@
 LOCALES+=	hu_HU.ISO8859-2
 LOCALES+=	ro_RO.ISO8859-2
 LOCALES+=	nb_NO.ISO8859-15
+LOCALES+=	nn_NO.ISO8859-15
 LOCALES+=	lt_LT.ISO8859-13
 LOCALES+=	pl_PL.ISO8859-2
 
@@ -105,13 +106,11 @@
 SAME+=		fr_FR.ISO8859-15 fr_CA.ISO8859-1
 SAME+=		fr_FR.ISO8859-15 fr_BE.ISO8859-15
 SAME+=		fr_FR.ISO8859-15 fr_BE.ISO8859-1
-SAME+=		sr_RS.ISO8859-2 sl_SI.ISO8859-2
 SAME+=		is_IS.ISO8859-15 is_IS.ISO8859-1
 SAME+=		it_IT.ISO8859-15 it_IT.ISO8859-1
 SAME+=		it_IT.ISO8859-15 it_CH.ISO8859-15
 SAME+=		it_IT.ISO8859-15 it_CH.ISO8859-1
 SAME+=		nb_NO.ISO8859-15 nb_NO.ISO8859-1
-SAME+=		nn_NO.ISO8859-15 nn_NO.ISO8859-15
 SAME+=		nn_NO.ISO8859-15 nn_NO.ISO8859-1
 SAME+=		pt_PT.ISO8859-15 pt_PT.ISO8859-1
 SAME+=		pt_PT.ISO8859-15 pt_BR.ISO8859-1
diff --git a/share/msgdef/nn_NO.ISO8859-15.src b/share/msgdef/nn_NO.ISO8859-15.src
new file mode 100644
--- /dev/null
+++ b/share/msgdef/nn_NO.ISO8859-15.src
@@ -0,0 +1,8 @@
+# yesexpr
+^(([jJ]([aA])?)|([jJ])|([yY]([eE][sS])?)|([yY]))
+# noexpr
+^(([nN]([eE][iI])?)|([nN])|([nN]([oO])?)|([nN]))
+# yesstr
+ja:j:JA:J:yes:y:YES:Y
+# nostr
+nei:n:NEI:N:no:n:NO:N
diff --git a/share/msgdef/sl_SI.ISO8859-2.src b/share/msgdef/sl_SI.ISO8859-2.src
new file mode 100644
--- /dev/null
+++ b/share/msgdef/sl_SI.ISO8859-2.src
@@ -0,0 +1,8 @@
+# yesexpr
+^(([dD]([aA])?)|([dD])|([yY]([eE][sS])?)|([yY]))
+# noexpr
+^(([nN]([eE])?)|([nN])|([nN]([oO])?)|([nN]))
+# yesstr
+da:d:DA:D:yes:y:YES:Y
+# nostr
+ne:n:NE:N:no:n:NO:N