mkc_check_decl prototype: workaround for Solaris' crappy userlevel
  $ /bin/sh -c 'echo ${PATH%%(*}'
  /bin/sh: syntax error at line 1: `}' unexpected
  $ /bin/ksh -c 'echo ${PATH%%(*}'
  /bin/ksh: syntax error at line 1: `}' unexpected
  $ /usr/xpg4/bin/sh -c 'echo ${PATH%%(*}'
  /usr/xpg4/bin/sh: syntax error at line 1: `}' unexpected
  $
mkc_check_decl: use #error instead of .error in C code
Fix bug in hello_dictd regression test seen on SmartOS/SunOS-5.11
Unconditionally .export SRCTOP OBJTOP immediately, not in mkc.subprj.mk
Add examples for debug/release/profile builds to examples/subprojects.