On CentOS 5.3 x86_64, I'm trying to build xfsprogs-2.9.4-1.el5.centos.x86_64 with -ggdb so I can use it with gdb and examine the data structures when using xfs_db. I've installed the src rpm as a non-root user and when I run rpmbuild -bc during the ./configure I get the error: . . . checking uuid.h usability... no checking uuid.h presence... no checking for uuid.h... no checking sys/uuid.h usability... no checking sys/uuid.h presence... no checking for sys/uuid.h... no checking uuid/uuid.h usability... yes checking uuid/uuid.h presence... yes checking for uuid/uuid.h... yes checking for uuid_compare... no checking for uuid_compare in -luuid... no FATAL ERROR: could not find a valid UUID library. Install the Universally Unique Identifiers library package. error: Bad exit status from /var/tmp/rpm-tmp.42904 (%build) However, I found that /lib64/libuuid.so.1.2 (provided by e2fsprogs-libs-1.39-20.el5.x86_64) does exist and using nm -D shows an entry point for uuid_compare: 000000385a6015e0 T uuid_compare Then I did: strings ld.so.cache | grep uuid libuuid.so.1 /lib64/libuuid.so.1 libuuid.so.1 /lib/libuuid.so.1 libuuid.so /usr/lib/libuuid.so And /lib64/libuuid.so.1 is a symbolic link to /lib64/libuuid.so.1.2. The only hit on Google that looked interesting was from 2006: http://oss.sgi.com/archives/xfs/2006-03/msg00425.html Can anybody tell me what's going wrong and how to fix it? Thanks for your help. Linus