[gthumb] Syntax error in configure: usnet: command not found

[Paolo Bacchilega <paobac src gnome org>]

commit 4573edcc475bf6b9b37b2f1810f7a79afb7b1c36
Author: Jasper Lievisse Adriaanse <jasper humppa nl>
Date:   Wed Sep 29 21:53:10 2010 +0200

    Syntax error in configure: usnet: command not found

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index cba2db9..5410d34 100644
--- a/configure.ac
+++ b/configure.ac
@@ -307,7 +307,7 @@ if test "x$enable_jpeg" = "xyes"; then
 		JPEG_LIBS='-ljpeg -lm -lz'
 	fi
 	CFLAGS="$SAVE_CFLAGS"
-	usnet SAVE_CFLAGS
+	unset SAVE_CFLAGS
 fi
 AC_SUBST(JPEG_LIBS)
 AM_CONDITIONAL(ENABLE_JPEG_TOOLS, test "x$enable_jpeg" = xyes)