build-sys: learn to autogen out-of-tree

1 files changed, 9 insertions, 4 deletions

diff --git a/autogen.sh b/autogen.sh
index 568f718..527f765 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,6 +1,11 @@
 #!/bin/sh
 
-autoreconf -fi
-if [ -z "$NOCONFIGURE" ]; then
-    ./configure $@
-fi
+srcdir=`dirname $0`
+test -z "$srcdir" && srcdir=.
+
+(
+    cd "$srcdir"
+    autoreconf -fi
+)
+
+test -n "$NOCONFIGURE" || "$srcdir/configure" "$@"