Fix abs(long) warnings in gd.c

I'm fixing this using (int) casts instead of labs() because this is
what upstream GD does.

diff --git a/ext/gd/libgd/gd.c b/ext/gd/libgd/gd.c
index 2013e8ef4280b77232f0b5a9db30f90dff9a30ae..4492a9d3812b37d606b8c8025af38d2966b79f11 100644 (file)
--- a/ext/gd/libgd/gd.c
+++ b/ext/gd/libgd/gd.c
@@ -1256,7 +1256,7 @@ void gdImageAALine (gdImagePtr im, int x1, int y1, int x2, int y2, int col)
        if (dx == 0 && dy == 0) {
                return;
        }
-       if (abs(dx) > abs(dy)) {
+       if (abs((int)dx) > abs((int)dy)) {
                if (dx < 0) {
                        tmp = x1;
                        x1 = x2;