From 6f0c3c98e0336f1aecce491f141498bc69bdaacf Mon Sep 17 00:00:00 2001
From: Hans Ulrich Niedermann <hun@n-dimensional.de>
Date: Mon, 20 Jan 2020 14:59:38 +0100
Subject: Use AC_PROG_SED and ${SED} for sed

Use shell variable syntax here, not Makefile syntax.
---
 gphoto-m4/gp-camlibs.m4 | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/gphoto-m4/gp-camlibs.m4 b/gphoto-m4/gp-camlibs.m4
index c96536284..885901dac 100644
--- a/gphoto-m4/gp-camlibs.m4
+++ b/gphoto-m4/gp-camlibs.m4
@@ -49,6 +49,7 @@ dnl ####################################################################
 dnl
 AC_DEFUN([GP_CAMLIBS_INIT],[dnl
 AC_BEFORE([$0],[GP_CAMLIB])dnl
+AC_PROG_SED
 GP_PROG_CMP
 GP_PROG_DIFF
 GP_PROG_SORT
@@ -137,14 +138,14 @@ else
 	# and add the explicitly defined ones later
 	if echo "$camlibs" | grep "^all," > /dev/null; then
 		INSTALL_THESE_CAMLIBS_BASE="$ALL_DEFAULT_CAMLIBS"
-		camlibs="$(echo "$camlibs" | sed 's/^all,//')"
+		camlibs="$(echo "$camlibs" | ${SED} 's/^all,//')"
 	fi
 	if echo "$camlibs" | grep "outdated" > /dev/null; then
 		INSTALL_THESE_CAMLIBS_BASE="$INSTALL_THESE_CAMLIBS_BASE m4_strip(gp_camlibs_outdated)"
-		camlibs="$(echo "$camlibs" | sed 's/outdated[,]*//')"
+		camlibs="$(echo "$camlibs" | ${SED} 's/outdated[,]*//')"
 	fi
 
-	# camlibs=$(echo $camlibs | sed 's/,/ /g')
+	# camlibs=$(echo $camlibs | ${SED} 's/,/ /g')
 	IFS_save="$IFS"
 	IFS=",$IFS"
 	# Walk through enumeration of camlibs given by user and add them to list
-- 
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