The invocation of autoconf's AC_PATH_PROG( ) is not quite right for
finding curl-config. I've attached a patch that corrects the usage.
It corrects the negative case (where curl-config is not found).

How annoying to test! I had to uninstall libcurl libcurl-devel and curl
for 2 different bitlengths. Then of course rpm and yum don't work, so
when I was done, I had to manually download and reinstall the packages.
No wonder no one ever noticed that the negative case was broken.
Everyone always has curl installed!

Cheers,
Dan

-------------------------------------------------------------------
List admin: http://cool.haxx.se/list/listinfo/curl-library
Etiquette: http://curl.haxx.se/mail/etiquette.html