GopherProxy

	Add version option - scroll - scrollbackbuffer program for st
	git clone git://git.suckless.org/scroll
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	---
	commit 117d7db63f8b0c6fb4c00f1003d2577538a9f517
	parent cbafbee9b7f97f09490e39a4994434e1c2008b0f
	Author: Steve Ward <[email protected]>
	Date: Fri, 1 May 2020 21:40:49 -0400

	Add version option

	Diffstat:
	M config.mk \| 2 +-
	M scroll.c \| 12 ++++++++++--

	2 files changed, 11 insertions(+), 3 deletions(-)
	---
	diff --git a/config.mk b/config.mk
	@@ -6,7 +6,7 @@ PREFIX = /usr/local
	BINDIR = $(PREFIX)/bin
	MANDIR = $(PREFIX)/share/man

	-CPPFLAGS = -D_DEFAULT_SOURCE
	+CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_DEFAULT_SOURCE
	# if your system is not POSIX, add -std=c99 to CFLAGS
	CFLAGS = -Os
	LDFLAGS = -s
	diff --git a/scroll.c b/scroll.c
	@@ -47,6 +47,8 @@

	#define LENGTH(X) (sizeof (X) / sizeof ((X)[0]))

	+const char *argv0;
	+
	TAILQ_HEAD(tailhead, line) head;

	struct line {
	@@ -402,7 +404,7 @@ jumpdown(char *buf, size_t size)

	void
	usage(void) {
	- die("usage: scroll [-Mh] [-m mem] [program]");
	+ die("usage: %s [-Mvh] [-m mem] [program]", argv0);
	}

	int
	@@ -411,10 +413,13 @@ main(int argc, char *argv[])
	int ch;
	struct rlimit rlimit;

	+ argv0 = argv[0];
	+
	if (getrlimit(RLIMIT_DATA, &rlimit) == -1)
	die("getrlimit");

	- while ((ch = getopt(argc, argv, "Mm:h")) != -1) {
	+ const char *optstring = "Mm:vh";
	+ while ((ch = getopt(argc, argv, optstring)) != -1) {
	switch (ch) {
	case 'M':
	rlimit.rlim_cur = rlimit.rlim_max;
	@@ -424,6 +429,9 @@ main(int argc, char *argv[])
	if (errno != 0)
	die("strtoull: %s", optarg);
	break;
	+ case 'v':
	+ die("%s " VERSION, argv0);
	+ break;
	case 'h':
	default:
	usage();