checking for strerror... yes checking for stdin... yes checking for stdarg.h... no checking for varargs.h... no configure: error: neither stdarg.h nor varargs.h present !!! ERROR: app-text/uudeview-0.5.13 failed. !!! Function src_compile, Line 15, Exitcode 1 !!! ./configure failed
Can you look if stdargs.h and varargs.h are on your system? On mine, they are in /usr/lib/gcc-lib/i686-pc-linux-gnu/3.2/include/ but this depends on your host and gcc-version. Can you try if the same error appears with 0.5.18?
beryllium include # find /usr -type f -regex '.*\(varargs.h\|stdarg.h\)' /usr/lib/gcc-lib/i686-pc-linux-gnu/3.2/include/varargs.h /usr/lib/gcc-lib/i686-pc-linux-gnu/3.2/include/stdarg.h 0.5.18 merges successful.
I've now commited 0.5.18 as stable. So your issue should be fixed now because it only appears in 0.5.13.