Change (apply 'nconc (mapcar ...)) to (mapcan ...); warn about first form. lisp/ChangeLog addition: 2010-09-16 Aidan Kehoe <kehoea@parhasard.net> * byte-optimize.el (byte-optimize-apply): Transform (apply 'nconc (mapcar ...)) to (mapcan ...); warn about use of the first idiom. * update-elc.el (do-autoload-commands): * packages.el (packages-find-package-library-path): * frame.el (frame-list): * extents.el (extent-descendants): * etags.el (buffer-tag-table-files): * dumped-lisp.el (preloaded-file-list): * device.el (device-list): * bytecomp-runtime.el (proclaim-inline, proclaim-notinline) Use #'mapcan, not (apply #'nconc (mapcar ...) in all these files. * bytecomp-runtime.el (eval-when-compile, eval-and-compile): In passing, mention that these macros also evaluate the body when interpreted.

#define noname_width 28
#define noname_height 28
static char noname_bits[] = {
 0xff,0xff,0xff,0x0f,0xff,0xff,0xff,0x0f,0x3f,0x00,0xc0,0x0f,0x1f,0x40,0x95,
 0x0f,0x1f,0x40,0x95,0x0f,0x1f,0x00,0x80,0x0f,0xbf,0xff,0xdf,0x0f,0xdf,0xff,
 0xbf,0x0f,0xdf,0xff,0xbf,0x0f,0xdf,0xff,0xbf,0x0f,0xdf,0xff,0xbf,0x0f,0xdf,
 0x6f,0xbe,0x0f,0xdf,0x2d,0xbc,0x0f,0xdf,0x4b,0xbc,0x0f,0xdf,0x07,0xbe,0x0f,
 0x5f,0x04,0xbf,0x0f,0xdf,0x09,0xbc,0x0f,0xdf,0x82,0xbf,0x0f,0x5f,0x60,0xbf,
 0x0f,0x5f,0xe0,0xbe,0x0f,0x5f,0xc0,0xbf,0x0f,0x5f,0xd0,0xbf,0x0f,0xdf,0xd8,
 0xbf,0x0f,0xdf,0xff,0xbf,0x0f,0x3f,0x00,0xc0,0x0f,0xff,0xff,0xff,0x0f,0xff,
 0xff,0xff,0x0f,0xff,0xff,0xff,0x0f};