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comparison PROBLEMS @ 398:74fd4e045ea6 r21-2-29

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Import from CVS: tag r21-2-29
author cvs
date Mon, 13 Aug 2007 11:13:30 +0200
parents 7d59cb494b73
children a86b2b5e0111
comparison
equal deleted inserted replaced
397:f4aeb21a5bad 398:74fd4e045ea6
39 *** egcs-1.1 39 *** egcs-1.1
40 40
41 There have been reports of egcs-1.1 not compiling XEmacs correctly on 41 There have been reports of egcs-1.1 not compiling XEmacs correctly on
42 Alpha Linux. There have also been reports that egcs-1.0.3a is O.K. 42 Alpha Linux. There have also been reports that egcs-1.0.3a is O.K.
43 43
44 *** Don't use -O2 with gcc 2.7.2 under Intel/XXX without also using 44 *** Don't use -O2 or -O3 with Cygwin 1.0, CodeFusion-99070 or gcc 2.7.2 on x86
45 `-fno-strength-reduce'. 45 without also using `-fno-strength-reduce'.
46 46
47 gcc will generate incorrect code otherwise. This bug is present in at 47 gcc will generate incorrect code otherwise. This bug is present in at
48 least 2.6.x and 2.7.[0-2]. This bug has been fixed in GCC 2.7.2.1 and 48 least 2.6.x and 2.7.[0-2]. This bug has been fixed in GCC 2.7.2.1 and
49 later. This bug is O/S independent, but is limited to x86 architectures. 49 later. This bug is O/S independent, but is limited to x86 architectures.
50 50
51 This problem is known to be fixed in egcs (or pgcc) 1.0 or later. 51 This problem is known to be fixed in egcs (or pgcc) 1.0 or later.
52
53 Unfortunately, later releases of Cygnus-released compilers (not the
54 Net-released ones) have a bug with the same `problem signature'.
55
56 If you're lucky, you'll get an error while compiling that looks like:
57
58 event-stream.c:3189: internal error--unrecognizable insn:
59 (insn 256 14 15 (set (reg/v:SI 24)
60 (minus:SI (reg/v:SI 25)
61 (const_int 2))) -1 (insn_list 11 (nil))
62 (nil))
63 0 0 [main]
64
65 If you're unlucky, your code will simply execute incorrectly.
66
67 *** Don't use gcc-2.95.2 with -mcpu=ultrasparc on Solaris 2.6.
68
69 gcc will assume a 64-bit operating system, even though you've
70 merely told it to assume a 64-bit instruction set.
52 71
53 *** Don't use -O2 with gcc 2.7.2 under Intel architectures without also 72 *** Don't use -O2 with gcc 2.7.2 under Intel architectures without also
54 using `-fno-caller-saves'. 73 using `-fno-caller-saves'.
55 74
56 gcc will generate incorrect code otherwise. This bug is still 75 gcc will generate incorrect code otherwise. This bug is still
389 408
390 *** On HP-UX 11.0 XEmacs causes excessive X11 errors when running. 409 *** On HP-UX 11.0 XEmacs causes excessive X11 errors when running.
391 410
392 Marcus Thiessel <marcus_thiessel@hp.com> 411 Marcus Thiessel <marcus_thiessel@hp.com>
393 412
394 Unfortunately, XEmacs releases <21.0 don't work with Motif2.1. It 413 Unfortunately, XEmacs releases prior to 21.0 don't work with
395 will compile but you will get excessive X11 errors like 414 Motif2.1. It will compile but you will get excessive X11 errors like
396 415
397 xemacs: X Error of failed request: BadGC (invalid GC parameter) 416 xemacs: X Error of failed request: BadGC (invalid GC parameter)
398 417
399 and finally XEmacs gets killed. A workaround is to use the 418 and finally XEmacs gets killed. A workaround is to use the
400 Motif1.2_R6 libraries. You can the following line to your call to 419 Motif1.2_R6 libraries. You can the following line to your call to
540 shell. 559 shell.
541 560
542 *** You type Control-H (Backspace) expecting to delete characters. 561 *** You type Control-H (Backspace) expecting to delete characters.
543 562
544 Emacs has traditionally used Control-H for help; unfortunately this 563 Emacs has traditionally used Control-H for help; unfortunately this
545 interferes with its use as Backspace on TTY's. One way to solve this 564 interferes with its use as Backspace on TTY's. As of XEmacs 21,
546 problem is to put this in your .emacs: 565 XEmacs looks at the "erase" setting of TTY structures and maps C-h to
547 566 backspace when erase is set to C-h. This is sort of a special hack,
548 (when (eq tty-erase-char ?\C-h) 567 but it makes it possible for you to use the standard:
549 (keyboard-translate ?\C-h ?\C-?) 568
550 (global-set-key "\M-?" 'help-command)) 569 stty erase ^H
551 570
552 This checks whether the TTY erase char is C-h, and if it is, makes 571 to get your backspace key to erase characters. The erase setting is
553 Control-H (Backspace) work sensibly, and moves help to Meta-? (ESC ?). 572 recorded in the Lisp variable `tty-erase-char', which you can use to
554 573 tune the settings in your .emacs.
555 Note that you can probably also access help using F1. 574
575 A major drawback of this is that when C-h becomes backspace, it no
576 longer invokes help. In that case, you need to use f1 for help, or
577 bind another key. An example of the latter is the following code,
578 which moves help to Meta-? (ESC ?):
579
580 (global-set-key "\M-?" 'help-command)
556 581
557 *** Mail agents (VM, Gnus, rmail) cannot get new mail 582 *** Mail agents (VM, Gnus, rmail) cannot get new mail
558 583
559 rmail and VM get new mail from /usr/spool/mail/$USER using a program 584 rmail and VM get new mail from /usr/spool/mail/$USER using a program
560 called `movemail'. This program interlocks with /bin/mail using the 585 called `movemail'. This program interlocks with /bin/mail using the