new glibc2.1 [RH6.0] #include necessity

I built a new system last evening. RedHat's 6.0 Linux release contains glibc2.1. (5.x had 2.0.) The glibc freaks have chosen, for some reason which is thoroughly opaque to me, to instantiate a new subdirectory under /usr/include, /usr/include/db1, in which they have abandoned ndbm.h. As you might imagine, configure fails to find it. I first found this problem when building kth-krb and arla for this system (kth-krb's build dies a horrible death without ndbm.h), and cut off XEmacs' configure before it could express any more confusion when I saw this roll up the screen. Insuring that one has set CPATH=/usr/include/db1 during both configure and make will induce XEmacs to build as one expects. Or I suppose you could add --cflags=-I/usr/include/db1. And in fact the diff between my old RH5.1 Installation file and the new one under RH6.0 is trivial, regarding only the kernel name from uname(1), the directory where I'm building, and the fact that the latest XFree release has done away with the "/usr/X11" symlink. I don't know if configure can be coerced into adding an appropriate check to cover this automatically, or if this should merely go into the PROBLEMS file. BTW, "gcc -v" in RH6.0 says: "Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.66/specs gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)" I haven't run XEmacs hard in the new environment yet (and this is for a home machine, where I build without error-checking) but it seems to run fine so far. --karl