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[] = {
 0x00,0x01,0x00,0x00,0x54,0xa4,0x54,0x05,0x00,0x00,0x02,0x00,0x92,0xaa,0x90,
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 0x82,0x00,0x08,0x0a,0x29,0x0a,0xa2,0x80,0x83,0x00,0x00,0x12,0x17,0x02,0xf4,
 0xff,0x8d,0x00,0x60,0x55,0x15,0x0a,0xaa,0xfb,0xbf,0x00,0x60,0x57,0x75,0x02,
 0xa9,0xfd,0x3e,0x00,0xe0,0xb7,0x9b,0x02,0xea,0xff,0x2f,0x04,0x20,0x00,0x87,
 0x00,0x09,0x48,0x13,0x02,0xa0,0x22,0x41,0x08,0x0a,0x80,0x14,0x02,0x20,0x15,
 0x40,0x00,0x48,0x00,0x15,0x05,0x02,0x29,0x40,0x00,0x20,0x82,0x12,0x04,0x8a,
 0x08,0x48,0x02,0x20,0x40,0x82,0x00};