vpnc: update to maintained github fork

The SVN-based version has not changed in years. Many distros use this
fork as evident here: https://github.com/streambinder/vpnc/issues/14

Compile tested against GnuTLS and OpenSSL on ramips target.

Fixes #14119.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>

net/vpnc/patches/001-cross.patch

@@ -1,42 +0,0 @@
---- a/Makefile
-+++ b/Makefile
-@@ -20,7 +20,7 @@
- # $Id: Makefile 539 2013-12-04 13:41:04Z Antonio Borneo $
- 
- DESTDIR=
--PREFIX=/usr/local
-+PREFIX=/usr
- ETCDIR=/etc/vpnc
- BINDIR=$(PREFIX)/bin
- SBINDIR=$(PREFIX)/sbin
-@@ -57,18 +57,15 @@ OBJS = $(addsuffix .o,$(basename $(SRCS)
- CRYPTO_OBJS = $(addsuffix .o,$(basename $(CRYPTO_SRCS)))
- BINOBJS = $(addsuffix .o,$(BINS))
- BINSRCS = $(addsuffix .c,$(BINS))
--VERSION := $(shell sh mk-version)
- RELEASE_VERSION := $(shell cat VERSION)
- 
- CC ?= gcc
--CFLAGS ?= -O3 -g
- CFLAGS += -W -Wall -Wmissing-declarations -Wwrite-strings
--CFLAGS +=  $(shell libgcrypt-config --cflags) $(CRYPTO_CFLAGS)
-+CFLAGS += -O3 -I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include $(OFLAGS) $(CRYPTO_CFLAGS)
- CPPFLAGS += -DVERSION=\"$(VERSION)\"
--LDFLAGS ?= -g
--LIBS += $(shell libgcrypt-config --libs) $(CRYPTO_LDADD)
-+LIBS += -L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib -lgcrypt -lgpg-error $(CRYPTO_LDADD)
- 
--ifeq ($(shell uname -s), SunOS)
-+ifeq ($(OS), SunOS)
- LIBS += -lnsl -lresolv -lsocket
- endif
- ifneq (,$(findstring Apple,$(shell $(CC) --version)))
-@@ -82,7 +79,7 @@ vpnc : $(OBJS) vpnc.o
- 	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
- 
- vpnc.8 : vpnc.8.template makeman.pl vpnc
--	./makeman.pl
-+	touch vpnc.8
- 
- cisco-decrypt : cisco-decrypt.o decrypt-utils.o
- 	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)

net/vpnc/patches/100-musl-compat.patch

@@ -1,42 +0,0 @@
---- a/sysdep.h
-+++ b/sysdep.h
-@@ -37,12 +37,14 @@ int tun_read(int fd, unsigned char *buf,
- int tun_get_hwaddr(int fd, char *dev, uint8_t *hwaddr);
- 
- /***************************************************************************/
--#if defined(__linux__) || defined(__GLIBC__)
-+#if defined(__GLIBC__) || defined(__UCLIBC__)
- #include <error.h>
-+#define HAVE_ERROR     1
-+#endif
- 
-+#if defined(__linux__) || defined(__GLIBC__)
- #define HAVE_VASPRINTF 1
- #define HAVE_ASPRINTF  1
--#define HAVE_ERROR     1
- #define HAVE_UNSETENV  1
- #define HAVE_SETENV    1
- #endif
---- a/sysdep.c
-+++ b/sysdep.c
-@@ -59,6 +59,10 @@
- #if defined(__DragonFly__)
- #include <net/tun/if_tun.h>
- #elif defined(__linux__)
-+# if !defined(__GLIBC__) && !defined(__UCLIBC__)
-+#  define _LINUX_IF_ETHER_H
-+#  include <net/ethernet.h>
-+# endif
- #include <linux/if_tun.h>
- #elif defined(__APPLE__)
- /* no header for tun */
---- a/config.c
-+++ b/config.c
-@@ -28,6 +28,7 @@
- #include <unistd.h>
- #include <string.h>
- #include <errno.h>
-+#include <sys/ttydefaults.h>
- #include <sys/types.h>
- #include <sys/utsname.h>
- #include <sys/wait.h>

net/vpnc/patches/110-openssl-deprecated.patch

@@ -1,5 +1,5 @@
---- a/crypto-openssl.c
-+++ b/crypto-openssl.c
+--- a/src/crypto-openssl.c
++++ b/src/crypto-openssl.c
 @@ -20,6 +20,7 @@
  #include <string.h>
  #include <errno.h>