Description of problem:
prep stage fails with error from m4:
/usr/bin/m4: Warning: sub-expression 1 not present
autom4te: /usr/bin/m4 failed with exit status: 1
aclocal: autom4te failed with exit status: 1
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. try to rebuild a2ps
build w/o errors
same error detected while build imlib from extras,
some old packages.
Created attachment 135293 [details]
log from rpmbuild
tested a2ps-4.13b-56 : all OK.