mail/fetchmail: update to 6.4.24 and block LibreSSL.

fetchmail cannot legally be linked with LibreSSL,
because there is no GPLv2 clause 2b exemption for
LibreSSL, only for OpenSSL.

Correct LICENSE and remove LICENSE_COMB.
Remove LibreSSL patch.

Add FSF comment suggested by Corey Halpin in PR.

Related to:
PR:             259214

Update:
PR:             259945
MFH:		2021Q4

Approved by:	chalpin@cs.wisc.edu (maintainer)

3 files changed, 50 insertions, 48 deletions

diff --git a/mail/fetchmail/Makefile b/mail/fetchmail/Makefile
index 21a0b7561e00..186cebe7492d 100644
--- a/mail/fetchmail/Makefile
+++ b/mail/fetchmail/Makefile
@@ -1,8 +1,8 @@
 # Created by: Ville Eerola <ve@sci.fi>
 
 PORTNAME?=	fetchmail
-DISTVERSION=	6.4.22
-PORTREVISION=	1
+DISTVERSION=	6.4.25
+PORTREVISION?=	0
 CATEGORIES=	mail
 # The next line is inherited by the fetchmailconf dependent port,
 # do NOT replace fetchmail by ${PORTNAME}
@@ -11,55 +11,73 @@ MASTER_SITES=	SF/fetchmail/branch_6.4/
 MAINTAINER=	chalpin@cs.wisc.edu
 COMMENT?=	Batch mail retrieval utility for IMAP/POP3/ETRN/ODMR
 
-LICENSE=	GPLv2 LGPL21
-LICENSE_COMB=	dual
+LICENSE=	GPLv2+
 
 .if empty(MASTERDIR)
-CA_BUNDLE_RUN_DEPENDS=	${LOCALBASE}/share/certs/ca-root-nss.crt:security/ca_root_nss
-
-USES=		cpe gmake tar:xz ssl
-
-USERS=		${PORTNAME}
-GROUPS=		${USERS}
+USES=		cpe gmake tar:xz
+IGNORE_SSL=	libressl libressl-devel
+IGNORE_SSL_REASON=incompatible license/no GPLv2 clause 2b exception for LibreSSL
+# The Free Software Foundation asserts that a GPL v2 clause 2b exception is
+# required even for dynamically linked binaries. See
+# https://www.gnu.org/licenses/gpl-faq.en.html#GPLStaticVsDynamic
 
 USE_RC_SUBR=	fetchmail
-SUB_FILES=	pkg-message
 
 GNU_CONFIGURE=	yes
 
 # the added PYTHON=: suppresses python builds,
 # see ../../mail/fetchmailconf/ for the configuration tool
-CONFIGURE_ARGS=	--enable-opie --enable-RPA --enable-SDPS \
-		--without-hesiod --enable-fallback=no \
-		--with-ssl=${OPENSSLBASE} PYTHON=:
+CONFIGURE_ARGS=	--enable-fallback=no \
+		--enable-opie \
+		--enable-RPA \
+		--enable-SDPS \
+		--without-hesiod \
+		PYTHON=:
 
 # -Wl,--as-needed suppresses unneeded library references,
 # for instance, libcom_err.so on GSSAPI_NONE builds:
 LDFLAGS+=	-L${LOCALBASE}/lib -Wl,--as-needed
 
-OPTIONS_DEFINE=	CA_BUNDLE NLS DOCS
-OPTIONS_SINGLE=	GSSAPI
+PATCH_STRIP=	-p1
+SUB_FILES=	pkg-message
+USERS=		${PORTNAME}
+GROUPS=		${USERS}
+
+OPTIONS_DEFINE=		CA_BUNDLE DOCS NLS
+OPTIONS_DEFAULT=	CA_BUNDLE GSSAPI_BASE OPENSSL
+OPTIONS_SINGLE=		GSSAPI TLS
 OPTIONS_SINGLE_GSSAPI=	GSSAPI_BASE GSSAPI_HEIMDAL GSSAPI_MIT GSSAPI_NONE
-OPTIONS_DEFAULT=	CA_BUNDLE GSSAPI_BASE
-OPTIONS_SUB=	yes
+OPTIONS_SINGLE_TLS=	OPENSSL WOLFSSL
+
+OPTIONS_SUB=		yes
 
 CA_BUNDLE_DESC=		Install CA bundle for OpenSSL
+CA_BUNDLE_RUN_DEPENDS=	${LOCALBASE}/share/certs/ca-root-nss.crt:security/ca_root_nss
 
-GSSAPI_BASE_USES=	gssapi
-GSSAPI_BASE_CONFIGURE_ON=	--with-gssapi=${GSSAPIBASEDIR} ${GSSAPI_CONFIGURE_ARGS}
-GSSAPI_HEIMDAL_USES=	gssapi:heimdal
-GSSAPI_HEIMDAL_CONFIGURE_ON=	--with-gssapi=${GSSAPIBASEDIR} ${GSSAPI_CONFIGURE_ARGS}
-GSSAPI_MIT_USES=	gssapi:mit
-GSSAPI_MIT_CONFIGURE_ON=	--with-kerberos5=${GSSAPIBASEDIR} ${GSSAPI_CONFIGURE_ARGS}
+GSSAPI_BASE_USES=		gssapi
+GSSAPI_BASE_CONFIGURE_ON=	${GSSAPI_CONFIGURE_ARGS} \
+				--with-gssapi=${GSSAPIBASEDIR}
+GSSAPI_HEIMDAL_USES=		gssapi:heimdal
+GSSAPI_HEIMDAL_CONFIGURE_ON=	${GSSAPI_CONFIGURE_ARGS} \
+				--with-gssapi=${GSSAPIBASEDIR}
+GSSAPI_MIT_USES=		gssapi:mit
+GSSAPI_MIT_CONFIGURE_ON=	${GSSAPI_CONFIGURE_ARGS} \
+				--with-kerberos5=${GSSAPIBASEDIR}
 GSSAPI_NONE_CONFIGURE_ON=	--without-gssapi
 
-NLS_USES=	gettext
+NLS_USES=		gettext
 NLS_CONFIGURE_ENABLE=	nls
 
-PORTDOCS=	FAQ FEATURES NEWS NOTES OLDNEWS \
-		README README.SSL README.SSL-SERVER \
-		design-notes.html fetchmail-FAQ.html fetchmail-features.html \
-		esrs-design-notes.html todo.html
+OPENSSL_CONFIGURE_WITH=	ssl=${OPENSSLBASE}
+
+WOLFSSL_LIB_DEPENDS=	libwolfssl.so:security/wolfssl
+WOLFSSL_CONFIGURE_WITH=	wolfssl=${LOCALBASE}
+WOLFSSL_CONFIGURE_ON=	WOLFSSL_TRUST_FILE=${LOCALBASE}/share/certs/ca-root-nss.crt
+WOLFSSL_USES_OFF=	ssl
+
+PORTDOCS=	FAQ FEATURES NEWS NOTES OLDNEWS README README.SSL \
+		README.SSL-SERVER design-notes.html esrs-design-notes.html \
+		fetchmail-FAQ.html fetchmail-features.html todo.html
 
 post-patch:
 .if !exists(/usr/lib/libcom_err.so)
@@ -68,8 +86,6 @@ post-patch:
 
 .endif
 
-PATCH_STRIP=	-p1
-
 .if empty(MASTERDIR)
 post-build:
 	${MAKE_CMD} -C ${WRKSRC} check ; { r=$$? ; ( set -x ; ${CAT} "${WRKSRC}/test-suite.log" ) ; exit $$r ; }
diff --git a/mail/fetchmail/distinfo b/mail/fetchmail/distinfo
index fb8a0db605b6..0d489a50c74e 100644
--- a/mail/fetchmail/distinfo
+++ b/mail/fetchmail/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1631567945
-SHA256 (fetchmail-6.4.22.tar.xz) = cc6818bd59435602169fa292d6d163d56b21c7f53112829470a3aceabe612c84
-SIZE (fetchmail-6.4.22.tar.xz) = 1330176
+TIMESTAMP = 1637433525
+SHA256 (fetchmail-6.4.25.tar.xz) = e661a3f46e967d3a01735f530563d3e1392de9e322301a1ea958d3f7a8e41f15
+SIZE (fetchmail-6.4.25.tar.xz) = 1334484
diff --git a/mail/fetchmail/files/patch-LibreSSL b/mail/fetchmail/files/patch-LibreSSL
deleted file mode 100644
index 15bb350256f2..000000000000
--- a/mail/fetchmail/files/patch-LibreSSL
+++ /dev/null
@@ -1,14 +0,0 @@
-$OpenBSD: patch-tls-aux_h,v 1.1 2021/07/29 10:44:07 sthen Exp $
-
-Index: tls-aux.h
---- tls-aux.h.orig
-+++ tls-aux.h
-@@ -8,7 +8,7 @@
- #ifdef SSL_ENABLE
- #include <openssl/opensslv.h>
- 
--# if defined(LIBRESSL_VERSION_NUMBER) || OPENSSL_VERSION_NUMBER < 0x1010000fL
-+# if OPENSSL_VERSION_NUMBER < 0x1010000fL
- #  undef OSSL110_API
- # else
- #  define OSSL110_API 1