make[1]: Entering directory '/tmp/portage/app-arch/deltarpm-3.6_pre20110223-r1/work/deltarpm-git-20110223/zlib-1.2.2.f-rsyncable' x86_64-pc-linux-gnu-gcc-5.3.0 -fPIC -march=k8-sse3 -mcx16 -msahf --param l1-cache-size=64 --param l1-cache-line-size=64 --param l2-cache-size=512 -O2 -pipe -frecord-gcc-switches -c -o adler32.o adler32.c [...]
@alonbl, would you be interested in maintaining this package? Its only reverse dependency is app-arch/createrepo which is maintained by you.
OK, will maintain that for now. This is the same case of rsync embedding zlib. It is a fork of zlib not upstream zlib. As this implementation knows to build with both, I added system-zlib USE.