The Xrender package now requires an x11.pc file in your pkg-config path in order for configure to complete. This means that the user either needs to rebuild the versions of the X libraries available from freedesktop.org, or write an x11.pc file (error prone). As Xrender is a prerequisite for building Xft (which in turn is a prerequisite for GTK), it would be nice to reduce the number of libraries a user will need to (re)build in order to use apps on older systems. It would be better if Xrender would fall back to the standard autoconf checks for the X libraries if the x11 pkg-config file can't be found.
It looks to me like it checks for X with AC_PATH_XTRA if x11.pc doesn't exist...
See bug #122
I just tried building things again, and it seems to work. I was basing this bug report off a jhbuild bug report I had received. I should have checked things a bit more before filing.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.