Sun RPC was removed from glibc-2.26 [1] resulting in

/bin/sh ../../../libtool --tag=CC --mode=link x86_64-pc-linux-gnu-gcc -std=gnu99 -march=native -O2 -pipe -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -module -avoid-version -Wl,-O1 -Wl,--as-needed -o lib10_doveadm_quota_plugin.la -rpath /usr/lib64/dovecot/doveadm doveadm-quota.lo rquota_xdr.c:4:10: fatal error: rpc/rpc.h: No such file or directory #include ^~~~~~~~~~~ compilation terminated. make[4]: *** [Makefile:826: rquota_xdr.lo] Error 1

during build. Apparently, rquota code needs some love.

This is dovecot-2.3.2 but 2.2 branch should also result in the same error during make.

-- Eray

[1] https://fedoraproject.org/wiki/Changes/SunRPCRemoval