softethervpn: Fix compilation under 64-bit targets

-m64 is not compatible with OpenWrt's compilers.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

net/softethervpn/Makefile

@@ -12,7 +12,7 @@ PKG_NAME:=softethervpn
 PKG_VERSION:=4.28-9669
 PKG_VERREL:=beta
 PKG_VERDATE:=2018.09.11
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=softether-src-v$(PKG_VERSION)-$(PKG_VERREL).tar.gz
 PKG_SOURCE_URL:=http://www.softether-download.com/files/softether/v$(PKG_VERSION)-$(PKG_VERREL)-$(PKG_VERDATE)-tree/Source_Code/

net/softethervpn/patches/110-no-m64.patch

@@ -0,0 +1,14 @@
+--- a/src/makefiles/linux_64bit.mak
++++ b/src/makefiles/linux_64bit.mak
+@@ -29,9 +29,9 @@ OPTIONS_COMPILE_DEBUG=-D_DEBUG -DDEBUG -DUNIX -DUNIX_LINUX -DCPU_64 -D_REENTRANT
+ 
+ OPTIONS_LINK_DEBUG=-g -fsigned-char -m64 -lm -ldl -lrt -lpthread -lssl -lcrypto -lreadline -lncurses -lz
+ 
+-OPTIONS_COMPILE_RELEASE=-DNDEBUG -DVPN_SPEED -DUNIX -DUNIX_LINUX -DCPU_64 -D_REENTRANT -DREENTRANT -D_THREAD_SAFE -D_THREADSAFE -DTHREAD_SAFE -DTHREADSAFE -D_FILE_OFFSET_BITS=64 -I./src/ -I./src/Cedar/ -I./src/Mayaqua/ -O2 -fsigned-char -m64
++OPTIONS_COMPILE_RELEASE=-DNDEBUG -DVPN_SPEED -DUNIX -DUNIX_LINUX -DCPU_64 -D_REENTRANT -DREENTRANT -D_THREAD_SAFE -D_THREADSAFE -DTHREAD_SAFE -DTHREADSAFE -D_FILE_OFFSET_BITS=64 -I./src/ -I./src/Cedar/ -I./src/Mayaqua/ -O2 -fsigned-char
+ 
+-OPTIONS_LINK_RELEASE=-O2 -fsigned-char -m64 -lm -ldl -lrt -lpthread -lssl -lcrypto -lreadline -lncurses -lz
++OPTIONS_LINK_RELEASE=-O2 -fsigned-char -lm -ldl -lrt -lpthread -lssl -lcrypto -lreadline -lncurses -lz
+ 
+ INSTALL_BINDIR=/usr/bin/
+ INSTALL_VPNSERVER_DIR=/usr/vpnserver/