devel/cscope: Port cleanup

General maintenance update:

- Remove Makefile line '#Created by' header
- Change PORTVERSION to DISTVERSION
- Correct COMMENT
- Move GNU_CONFIGURE=yes up
- Rewrite summary in pkg-descr
- Include a second link
- Add patches under files to suppress compiler warnings

PR:		250168
Submitted by:	Moritz Schmitt <moritz@schmi.tt> (maintainer)
Approved by:	arrowd (mentor)
Differential Revision:	https://reviews.freebsd.org/D26704

devel/cscope/Makefile

@@ -1,23 +1,24 @@
-# Created by: Castor Fu
 # $FreeBSD$
 
 PORTNAME=	cscope
-PORTVERSION=	15.9
+DISTVERSION=	15.9
 CATEGORIES=	devel
 MASTER_SITES=	SF/${PORTNAME}/${PORTNAME}/v${PORTVERSION}
 
 MAINTAINER=	moritz@schmi.tt
-COMMENT=	Interactive C program browser
+COMMENT=	Interactive C source code browser
 
 LICENSE=	BSD3CLAUSE
 
 USES=		ncurses
-OPTIONS_DEFINE=	XCSCOPE
-OPTIONS_SUB=	yes
-XCSCOPE_DESC=	Install Emacs package
 
 GNU_CONFIGURE=	yes
 
+OPTIONS_DEFINE=	XCSCOPE
+OPTIONS_SUB=	yes
+
+XCSCOPE_DESC=	Install Emacs package
+
 EMACSLISPDIR=	${PREFIX}/share/emacs/site-lisp
 
 post-install:

devel/cscope/files/patch-src_exec.c

@@ -0,0 +1,20 @@
+--- src/exec.c.orig	2020-10-05 09:17:52 UTC
++++ src/exec.c
+@@ -55,7 +55,7 @@ static	sighandler_t oldsigtstp; /* old value of SIGTST
+ 
+ #ifndef __MSDOS__ /* none of these is needed, there */
+ static	int	join(pid_t p);
+-static	int	myexecvp(char *a, char **args);
++void		myexecvp(char *a, char **args);
+ static	pid_t	myfork(void);
+ #endif
+ 
+@@ -111,7 +111,7 @@ execute(char *a, ...)	/* note: "exec" is already defin
+ /* myexecvp is an interface to the execvp system call to
+  * modify argv[0] to reference the last component of its path-name.
+  */
+-static int
++void
+ myexecvp(char *a, char **args)
+ {
+     char    msg[MSGLEN + 1];

devel/cscope/files/patch-src_input.c

@@ -0,0 +1,11 @@
+--- src/input.c.orig	2020-10-05 19:47:54 UTC
++++ src/input.c
+@@ -45,7 +45,7 @@
+ #include <stdlib.h>
+ #include <errno.h>
+ #if HAVE_SYS_TERMIOS_H
+-#include <sys/termios.h>
++#include <termios.h>
+ #endif
+ 
+ static	jmp_buf	env;		/* setjmp/longjmp buffer */

devel/cscope/files/patch-src_invlib.c

@@ -0,0 +1,11 @@
+--- src/invlib.c.orig	2020-10-05 13:04:06 UTC
++++ src/invlib.c
+@@ -103,7 +103,7 @@ static	int	zipf[ZIPFSIZE + 1];
+ long
+ invmake(char *invname, char *invpost, FILE *infile)
+ {
+-	unsigned char	*s;
++	char	*s;
+ 	long	num;
+ 	int	i;
+ 	long	fileindex = 0;	/* initialze, to avoid warning */

devel/cscope/pkg-descr

@@ -1,8 +1,8 @@
-This port of SCO / USL's 'cscope' lets one easily navigate large C programs.
-It's designed to answer questions like where symbols are defined and used,
-where variables are assigned, and much more.
-
-The Santa Cruz Operation (SCO) has made this available under a very friendly,
-BSD-style Open Source License.
+cscope is a screen-oriented software development tool that allows the user to
+browse through C source files for specified code elements. It can find symbols,
+global definitions, functions called by a function, functions calling a
+function, arbitrary regexp patterns and much more. cscope can be used for
+projects of all sizes. Vim and Emacs integration is available.
 
 WWW: http://cscope.sourceforge.net/
+https://sourceforge.net/projects/cscope/