Can't compile with profiling after BRIN autosummarization

make maintainer-clean > /dev/null ; ./configure --enable-profiling >
/dev/null && make -j8 >/dev/null

In file included from ipc.c:29:
../../../../src/include/postmaster/autovacuum.h:73: error: expected
declaration specifiers or '...' before 'BlockNumber'
make[4]: *** [ipc.o] Error 1
make[3]: *** [ipc-recursive] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [storage-recursive] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [all-backend-recurse] Error 2
make: *** [all-src-recurse] Error 2

This git bisects down to:

commit 7526e10224f0792201e99631567bbe44492bbde4
Author: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
Date: Sat Apr 1 14:00:53 2017 -0300

BRIN auto-summarization

The lines are:

extern void AutoVacuumRequestWork(AutoVacuumWorkItemType type,
Oid relationId, BlockNumber blkno);

I have no idea why --enable-profiling would change the way this line is
seen.

gcc version 4.4.7 20120313 (Red Hat 4.4.7-17) (GCC)

Cheers,

Jeff