libgphoto2: shell portability

devel/libgphoto2/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.29 2018/01/31 10:53:40 jperkin Exp $
+$NetBSD: distinfo,v 1.30 2020/08/18 00:30:13 tnn Exp $
 
 SHA1 (libgphoto2-2.5.8.tar.bz2) = 976feb07d51026e6ca647f9fa333c500c5e0c041
 RMD160 (libgphoto2-2.5.8.tar.bz2) = bbb57fdace9783f9829bafbd89818949f6d0fce3
@@ -18,3 +18,4 @@ SHA1 (patch-camlibs_panasonic_coolshot_library.c) = bb476c660d8ef011f11da119a718
 SHA1 (patch-camlibs_st2205_st2205.c) = 2269a9d6d143bd74c49e21fafb706c6ee528748e
 SHA1 (patch-libgphoto2__port_gphoto2_gphoto2-port-portability.h) = 9f62a7c4213f8be273b6da7b2cbbd1f68e697631
 SHA1 (patch-libgphoto2_gphoto2-file.c) = 2b63f2e3bb3b6ef73c8d860efdda5e342f093eb8
+SHA1 (patch-packaging_generic_check-ptp-camera) = d828f1e36f2d86c6b3cfc68969efddd3fea0784d

devel/libgphoto2/patches/patch-packaging_generic_check-ptp-camera

@@ -0,0 +1,22 @@
+$NetBSD: patch-packaging_generic_check-ptp-camera,v 1.1 2020/08/18 00:30:13 tnn Exp $
+
+double brackets
+
+--- packaging/generic/check-ptp-camera.orig	2020-08-18 00:27:22.303662350 +0000
++++ packaging/generic/check-ptp-camera
+@@ -20,13 +20,13 @@ INTERFACE="${1:-06/01/01}"
+ 
+ BASENAME=${DEVPATH##*/}
+ for d in /sys/${DEVPATH}/${BASENAME}:*; do
+-	[[ -d ${d} ]] || continue
++	[ -d ${d} ] || continue
+ 	INTERFACEID="$(< ${d}/bInterfaceClass)"
+ 	INTERFACEID="${INTERFACEID}/$(< ${d}/bInterfaceSubClass)"
+ 	INTERFACEID="${INTERFACEID}/$(< ${d}/bInterfaceProtocol)"
+ 
+ 	#echo ${d}: ${INTERFACEID}
+-	if [[ ${INTERFACE} == ${INTERFACEID} ]]; then
++	if [ ${INTERFACE} = ${INTERFACEID} ]; then
+ 		# Found interface
+ 		exit 0
+ 	fi