diff --git a/pullrev.sh b/pullrev.sh
index f50e4db..ada0076 100755
--- a/pullrev.sh
+++ b/pullrev.sh
@@ -9,7 +9,7 @@ repo="https://svn.apache.org/repos/asf/httpd/httpd/trunk"
 #repo="https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x"
 ver=2.4.43
 prefix="httpd-${ver}"
-suffix="r$1${2:++}"
+suffix="${SUFFIX:-r$1${2:++}}"
 fn="${prefix}-${suffix}.patch"
 vcurl="http://svn.apache.org/viewvc?view=revision&revision="
 
@@ -23,8 +23,12 @@ fi
 
 new=0
 for r in $*; do
-   if ! grep -q "${vcurl}${r}" ${fn}; then
-       echo "${vcurl}${r}"
+   case $r in
+        http*) url=$r ;;
+        *) url=${vcurl}${r} ;;
+   esac
+   if ! grep -q "^${url}" ${fn}; then
+       echo "${url}"
        new=1
    fi
 done >> ${fn}
@@ -35,10 +39,17 @@ prev=/dev/null
 for r in $*; do
     echo "+ fetching ${r}"
     this=`mktemp /tmp/pullrevXXXXXX`
-    svn diff -c ${r} ${repo} | filterdiff --remove-timestamps --clean -x 'CHANGES' -x '*/next-number' -x 'STATUS' \
-        -x '*.xml' --addprefix="${prefix}/" > ${this}
+    case $r in
+        http*) curl -s "$r" | filterdiff --strip=3 ;;
+        *) svn diff -c ${r} ${repo}  ;;
+    esac | filterdiff --remove-timestamps --clean \
+                      -x 'CHANGES' -x '*/next-number' -x 'STATUS' -x '*.xml' \
+                      --addprefix="${prefix}/" > ${this}
     next=`mktemp /tmp/pullrevXXXXXX`
-    combinediff --quiet ${prev} ${this} > ${next}
+    if ! combinediff -w ${prev} ${this} > ${next}; then
+        echo "Failed combining previous ${prev} with ${this}";
+        exit 1
+    fi
     rm -f "${this}"
     [ "${prev}" = "/dev/null" ] || rm -f "${prev}"
     prev=${next}