x11/i3status: add sndio volume backend

This makes i3status display sndiod master volume knob. This makes it
work by default with any audio device, including USB ones with no
volume controls.

OK?

Index: Makefile
===================================================================
RCS file: /cvs/ports/x11/i3status/Makefile,v
retrieving revision 1.58
diff -u -p -r1.58 Makefile
--- Makefile 27 Sep 2019 20:33:22 -0000 1.58
+++ Makefile 8 Mar 2020 15:33:22 -0000
@@ -5,7 +5,7 @@ ONLY_FOR_ARCHS= ${APM_ARCHS}
COMMENT= generate a statusbar for use with i3/xmobar/dzen2

DISTNAME= i3status-2.13
-REVISION= 1
+REVISION= 2
CATEGORIES= x11 sysutils

HOMEPAGE= https://i3wm.org/i3status/
@@ -28,7 +28,9 @@ BUILD_DEPENDS= textproc/asciidoc>=8.6.8
LIB_DEPENDS= devel/libconfuse \
devel/libyajl

-CONFIGURE_STYLE = gnu
+AUTOCONF_VERSION = 2.69
+AUTOMAKE_VERSION = 1.16
+CONFIGURE_STYLE = autoreconf
SEPARATE_BUILD = Yes

FAKE_FLAGS += sysconfdir=${PREFIX}/share/examples/i3status/
Index: patches/patch-Makefile_am
===================================================================
RCS file: patches/patch-Makefile_am
diff -N patches/patch-Makefile_am
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-Makefile_am 8 Mar 2020 15:33:22 -0000
@@ -0,0 +1,37 @@
+$OpenBSD$
+
+Index: Makefile.am
+--- Makefile.am.orig
++++ Makefile.am
+@@ -1,5 +1,3 @@
+-@CODE_COVERAGE_RULES@
+-
+ echo-version:
+ @echo "@I3STATUS_VERSION@"
+
+@@ -30,6 +28,7 @@ i3status_CFLAGS = \
+ $(PULSE_CFLAGS) \
+ $(NLGENL_CFLAGS) \
+ $(ALSA_CFLAGS) \
++ $(SNDIO_CFLAGS) \
+ $(PTHREAD_CFLAGS)
+
+ i3status_CPPFLAGS = \
+@@ -42,6 +41,7 @@ i3status_LDADD = \
+ $(PULSE_LIBS) \
+ $(NLGENL_LIBS) \
+ $(ALSA_LIBS) \
++ $(SNDIO_LIBS) \
+ $(PTHREAD_LIBS)
+
+ i3status_SOURCES = \
+@@ -69,7 +69,8 @@ i3status_SOURCES = \
+ src/print_wireless_info.c \
+ src/print_file_contents.c \
+ src/process_runs.c \
+- src/pulse.c
++ src/pulse.c \
++ src/sndio.c
+
+ dist_sysconf_DATA = \
+ i3status.conf
Index: patches/patch-Makefile_in
===================================================================
RCS file: patches/patch-Makefile_in
diff -N patches/patch-Makefile_in
--- patches/patch-Makefile_in 6 Jul 2019 20:20:27 -0000 1.1
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,15 +0,0 @@
-$OpenBSD: patch-Makefile_in,v 1.1 2019/07/06 20:20:27 jasper Exp $
-
-The CODE_COVERAGE_RULES fragment contains an unmatched "if" clause.
-
-Index: Makefile.in
---- Makefile.in.orig
-+++ Makefile.in
-@@ -1851,7 +1851,6 @@ uninstall-man: uninstall-man1
-
- .PRECIOUS: Makefile
-
--@CODE_COVERAGE_RULES@
-
- echo-version:
- @echo "@I3STATUS_VERSION@"
Index: patches/patch-configure_ac
===================================================================
RCS file: patches/patch-configure_ac
diff -N patches/patch-configure_ac
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-configure_ac 8 Mar 2020 15:33:22 -0000
@@ -0,0 +1,19 @@
+$OpenBSD$
+
+Index: configure.ac
+--- configure.ac.orig
++++ configure.ac
+@@ -91,6 +91,13 @@ case $host_os in
+ ;;
+ esac
+
++# if sndio is available, define USE_SNDIO
++AC_CHECK_HEADER(sndio.h,
++ [AC_CHECK_LIB([sndio], [sio_open], [
++ AC_SUBST(SNDIO_LIBS, "-lsndio")
++ AC_DEFINE([USE_SNDIO], [], [Use sndio])
++ ], [])], [])
++
+ dnl TODO: check for libbsd for GNU/kFreeBSD
+
+ # Checks for programs.
Index: patches/patch-include_i3status_h
===================================================================
RCS file: patches/patch-include_i3status_h
diff -N patches/patch-include_i3status_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-include_i3status_h 8 Mar 2020 15:33:22 -0000
@@ -0,0 +1,13 @@
+$OpenBSD$
+
+Index: include/i3status.h
+--- include/i3status.h.orig
++++ include/i3status.h
+@@ -232,6 +232,7 @@ int volume_pulseaudio(uint32_t sink_idx, const char *s
+ bool description_pulseaudio(uint32_t sink_idx, const char *sink_name, char buffer[MAX_SINK_DESCRIPTION_LEN]);
+ bool pulse_initialize(void);
+ void print_file_contents(yajl_gen json_gen, char *buffer, const char *title, const char *path, const char *format, const char *format_bad, const int max_chars);
++int volume_sndio(void);
+
+ /* socket file descriptor for general purposes */
+ extern int general_socket;
Index: patches/patch-src_print_volume_c
===================================================================
RCS file: patches/patch-src_print_volume_c
diff -N patches/patch-src_print_volume_c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_print_volume_c 8 Mar 2020 15:33:22 -0000
@@ -0,0 +1,144 @@
+$OpenBSD$
+
+Index: src/print_volume.c
+--- src/print_volume.c.orig
++++ src/print_volume.c
+@@ -21,13 +21,6 @@
+ #include <sys/soundcard.h>
+