don't rely on HEAD binary, arch doesn't have it. Use lwp-request HEAD.

diff --git a/misc/tools/xonotic-map-compiler-autobuild b/misc/tools/xonotic-map-compiler-autobuild
index bfead9912d175f0efe262804a30754372f3fda0a..373a50dc30ce70e2be9136c097e2d96f604e3dc0 100755 (executable)
--- a/misc/tools/xonotic-map-compiler-autobuild
+++ b/misc/tools/xonotic-map-compiler-autobuild
@@ -163,7 +163,7 @@ buildthemap()
        M=$3
        blobhash=$4
        commithash=$5
-       if HEAD "$url$M-$blobhash.pk3"; then
+       if lwp-request -m HEAD "$url$M-$blobhash.pk3"; then
                continue
        fi
 
@@ -213,7 +213,7 @@ screenshotthemap()
        M=$3
        blobhash=$4
        commithash=$5
-       if HEAD "$url$M-$blobhash/"; then
+       if lwp-request -m HEAD "$url$M-$blobhash/"; then
                continue
        fi