[jhbuild] add explanation about install-check in defaults.jhbuildrc

[Frederic Peters <fpeters src gnome org>]

commit baf3a2d97cfe82d880b72ca81bc31d58f4b66ad1
Author: Frederic Peters <fpeters 0d be>
Date:   Tue Apr 28 22:14:59 2009 +0200

    add explanation about install-check in defaults.jhbuildrc
---
 jhbuild/defaults.jhbuildrc |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/jhbuild/defaults.jhbuildrc b/jhbuild/defaults.jhbuildrc
index e9b3a0b..0f6816e 100644
--- a/jhbuild/defaults.jhbuildrc
+++ b/jhbuild/defaults.jhbuildrc
@@ -47,6 +47,9 @@ builddir_pattern = '%s'
 autogenargs = '--disable-static --disable-gtk-doc'
 makeargs = ''
 cflags = ''
+
+# a alternative install program to use; the included install-check
+# program won't update timestamps if the header hasn't changed
 installprog = os.path.join(os.environ['HOME'], '.local/bin', 'install-check')
 if not os.path.exists(installprog):
     installprog = '/usr/bin/install-check'