[babl] INSTALL.in: document meson build instead of autotools build

[Øyvind "pippin" Kolås <ok src gnome org>]

commit cb843651e74c6dfc91e5e8e1cfd3b69b363d7e2c
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Jul 25 14:58:17 2019 +0200

    INSTALL.in: document meson build instead of autotools build

 INSTALL.in | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/INSTALL.in b/INSTALL.in
index 5fa1570..1581a3d 100644
--- a/INSTALL.in
+++ b/INSTALL.in
@@ -13,9 +13,12 @@ installation (or a variation on this theme):
 
      ------------------------------------------------------------
      foo$ wget ftp://ftp.gtk.org/pub/babl/0.1/babl-@BABL_VERSION@.tar.bz2
-     foo$ tar jxf babl-@BABL_VERSION  tar gz
+     foo$ tar xvf babl-@BABL_VERSION  tar gz
      foo$ cd babl-@BABL_VERSION@
-     foo/babl-@BABL_VERSION@$ ./configure && make && sudo make install
+     foo/babl-@BABL_VERSION@$ meson build
+     foo/babl-@BABL_VERSION@$ cd build
+     foo/babl-@BABL_VERSION@/build$ ninja && ninja install
+
      ------------------------------------------------------------