binaries continually rebuilt

libmemcached 1.0.18

Second and subsequent make invocations continually rebuild some binaries:

$ make
make -j9 all-am
  CXXLD libtest/libtest.la
  CXXLD tests/cycle
  CXXLD libtest/unittest
  CXXLD tests/libmemcached-1.0/testapp
  CXXLD tests/libmemcached-1.0/sasl
  CXXLD tests/libmemcached-1.0/internals
  CXXLD tests/libmemcached-1.0/testsocket
  CXXLD libtest/skiptest
  CXXLD tests/atomsmasher
  CXXLD tests/testudp
  CXXLD tests/testplus
  CXXLD tests/parser
  CXXLD tests/failure
  CXXLD tests/testhashkit
  CXXLD tests/hash_plus
  CXXLD tests/memcapable
  CXXLD tests/memstat
  CXXLD tests/memcp
  CXXLD tests/memflush
  CXXLD tests/memrm
  CXXLD tests/memexist
  CXXLD tests/memtouch
  CXXLD tests/memcat
  CXXLD tests/memping
  CXXLD tests/memerror
  CXXLD tests/memslap
  CXXLD tests/memdump

$ make
make -j9 all-am
  CXXLD libtest/libtest.la
  CXXLD tests/cycle
  CXXLD libtest/unittest
  CXXLD tests/libmemcached-1.0/testapp
  CXXLD tests/libmemcached-1.0/sasl
  CXXLD tests/libmemcached-1.0/internals
  CXXLD tests/libmemcached-1.0/testsocket
  CXXLD libtest/skiptest
  CXXLD tests/atomsmasher
  CXXLD tests/testudp
  CXXLD tests/testplus
  CXXLD tests/parser
  CXXLD tests/failure
  CXXLD tests/testhashkit
  CXXLD tests/hash_plus
  CXXLD tests/memcapable
  CXXLD tests/memstat
  CXXLD tests/memcp
  CXXLD tests/memflush
  CXXLD tests/memrm
  CXXLD tests/memexist
  CXXLD tests/memtouch
  CXXLD tests/memcat
  CXXLD tests/memping
  CXXLD tests/memerror
  CXXLD tests/memslap
  CXXLD tests/memdump

(and so on ad nauseam)

There seems to be some dependency problem with stamp-h1:

__build $ make-400 --trace
Makefile:3741: update target 'mem_config.h' due to: stamp-h1
if test ! -f mem_config.h; then rm -f stamp-h1; else :; fi
if test ! -f mem_config.h; then make-400 -j9 stamp-h1; else :; fi
Makefile:3700: update target 'all' due to: libtest/version.h libhashkit-1.0/configure.h libmemcached-1.0/configure.h ../libmemcached/csl/parser.cc ../libmemcached/csl/parser.h ../libmemcached/csl/scanner.cc ../libmemcached/csl/scanner.h mem_config.h
make-400 -j9 all-am
make-400[1]: Entering directory '__build'
Makefile:3741: update target 'mem_config.h' due to: stamp-h1
if test ! -f mem_config.h; then rm -f stamp-h1; else :; fi
if test ! -f mem_config.h; then make-400 -j9 stamp-h1; else :; fi
Makefile:4619: update target 'libtest/libtest.la' due to: libtest_tmp_dir