gkermit: Fix compilation with -Wimplicit-function-declaration

Cleaned up Makefile for consistency between packages.

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

utils/gkermit/Makefile

@@ -8,15 +8,15 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gkermit
 PKG_VERSION:=1.00
-PKG_RELEASE:=1
-PKG_LICENSE:=GPL-2.0
+PKG_RELEASE:=2
 
 PKG_SOURCE:=gku100.tar.gz
 PKG_SOURCE_URL:=ftp://kermit.columbia.edu/kermit/archives
 PKG_HASH:=3dbe63291277c4795255343b48b860777fb0a160163d7e1d30b1ee68585593eb
-PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
 
 PKG_MAINTAINER:=Nathaniel Wesley Filardo <nwfilardo@gmail.com>
+PKG_LICENSE:=GPL-2.0-or-later
+PKG_LICENSE_FILES:=COPYING
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -34,6 +34,7 @@ endef
 define Build/Prepare
 	mkdir -p $(PKG_BUILD_DIR)
 	tar -C $(PKG_BUILD_DIR) -xzvf "$(DL_DIR)/$(PKG_SOURCE)"
+	$(Build/Patch)
 endef
 
 # nothing to do

utils/gkermit/patches/010-musl.patch

@@ -0,0 +1,29 @@
+--- a/gcmdline.c
++++ b/gcmdline.c
+@@ -29,6 +29,7 @@
+ */
+ 
+ #include <stdio.h>
++#include <stdlib.h>
+ #include "gkermit.h"
+ 
+ /* Externals */
+@@ -53,7 +54,7 @@ _MYPROTOTYPE( VOID fatal, (char *) );
+ _MYPROTOTYPE( VOID usage, (void) );
+ 
+ #ifndef NOGETENV
+-_MYPROTOTYPE( char * getenv, (char *) );
++_MYPROTOTYPE( char * getenv, (const char *) );
+ #define GARGC 32
+ #define GBUFSIZ 256
+ static char gbuf[GBUFSIZ], *gargs[GARGC], *gptr = NULL;
+--- a/gunixio.c
++++ b/gunixio.c
+@@ -58,6 +58,7 @@
+ */
+ 
+ #include <stdio.h>			/* Standard input/output */
++#include <stdlib.h>
+ 
+ #ifdef POSIX
+ #include <termios.h>			/* Terminal modes */