Fix a bug in AT_REQUIRE_QT_VERSION if the 2nd argument isn't given.
tree19de0170f2e298a7f8b9261b37cd0b6e2978b767
-rw-r--r-- 37 AUTHORS
-rw-r--r-- 17987 COPYING
-rw-r--r-- 242 Makefile.am
-rw-r--r-- 180 NEWS
-rw-r--r-- 105 README
-rw-r--r-- 263 THANKS
-rwxr-xr-x 677 bootstrap
drwxr-xr-x - build-aux
-rw-r--r-- 2429 configure.ac
drwxr-xr-x - gui
drwxr-xr-x - src
drwxr-xr-x - tests