build-sys: support local ./configure arguments

I often want to use the awesome "./autogen.sh [cmd]" arguments, but have
to append some custom ./configure options. For now, I always had to edit
autogen.sh manually, or copy the full commands out of it and run it
myself.

As I think this is super annoying, this commit adds support for
".config.args" files in $topdir. If it exists, any content is just
appended to $args, thus to any ./configure invokation of autogen.sh.

Maybe autotools provide something similar out-of-the-box. In that case,
feel free to revert this and lemme know!

1 files changed, 4 insertions, 0 deletions

diff --git a/autogen.sh b/autogen.sh
index 0fc6e57027..7b62449be8 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -50,6 +50,10 @@ args="\
 --libdir=$(libdir /usr/lib) \
 $gtkdocargs"
 
+if [ -f "$topdir/.config.args" ]; then
+        args="$args $(cat $topdir/.config.args)"
+fi
+
 if [ ! -L /bin ]; then
 args="$args \
 --with-rootprefix= \