appimage: pass $ARCH to appimagetool

More recent appimagetool(1) implementations require an ARCH spec, since
auto-detection finds several architectures in the application directory.
This addresses part of bug #1349 (newer AppImageKit versions are
required to unbreak the magic bytes in the ELF header).

diff --git a/cross-compile/appimage/sigrok-native-appimage b/cross-compile/appimage/sigrok-native-appimage
index 290ff3c7f69b0f16b3ed0e507f5be73beea026a6..a3ab9b5b48b1a37a3dfbc5725519be7dfbfdc489 100755 (executable)
--- a/cross-compile/appimage/sigrok-native-appimage
+++ b/cross-compile/appimage/sigrok-native-appimage
@@ -28,6 +28,7 @@ else
 fi
 LOWERAPP=${APP,,} 
 
+export ARCH
 export STATIC_FILES=`pwd`/contrib
 
 # Add $APPIMAGEKIT_OUTDIR so we can find all the binaries there.