setusershell     1490 lib/unistd.in.h _GL_FUNCDECL_SYS (setusershell, void, (void));
setusershell     1492 lib/unistd.in.h _GL_CXXALIAS_SYS (setusershell, void, (void));
setusershell     1493 lib/unistd.in.h _GL_CXXALIASWARN (setusershell);
setusershell     1497 lib/unistd.in.h _GL_WARN_ON_USE (setusershell, "setusershell is unportable - "