bug#15795: 24.3.50; Compile uses relative filenames, breaks goto next error.

[Jan Djärv]

Hello.

I usually compile Emacs in a separate object directory.  From the source 
directory
/Users/jhd/src/emacs/current I use something like:

M-x compile <RET> cd /Users/jhd/src/emacs/obj-cur-osx && make <RET>
A warning/error in *compilation* uses relative filenames:

../../current/src/nsfont.m:889:28: warning: 'ATSFontFindFromPostScriptName' is
      deprecated: first deprecated in OS X 10.8 - Use CTFontCreateWithName()
      [-Wdeprecated-declarations]
      ATSFontRef atsFont = ATSFontFindFromPostScriptName

Clicking on the warning/error, or using next-error, prompts me to find the 
file, it isn't found  automatically.

If I switch to an emacs-24 branch configured exactly the same (same machine, 
same tools, same program versions, same Emacs used for compilation), it results 
in compilation output like this:

/Users/jhd/src/emacs/emacs-24/src/nsfont.m:1230:35: warning: 'Fix2X' is
      deprecated: first deprecated in OS X 10.8 [-Wdeprecated-declarations]
    fliptf.c =  font->synthItal ? Fix2X (kATSItalicQDSkew) : 0.0;

i.e. absolute filenames used and next-error finds the file.

So something in the trunk has changed to use relative filenames.  Either that 
change should be reverted as this is a regression, or compilation-mode should 
be made smarter.

I see this on GNU/Linux also.

        Jan D.


In GNU Emacs 24.3.50.1 (x86_64-apple-darwin13.0.0, NS apple-appkit-1265.00)
of 2013-11-02 on zeplin
Bzr revision: 114901 dgutov@yandex.ru-20131102051811-f9s9rj8g4fvqkd2h
Windowing system distributor `Apple', version 10.3.1265
Configured using:
`configure --verbose --with-ns CFLAGS=-g3'

Important settings:
  value of $LC_COLLATE: C
  value of $LANG: sv_SE.UTF-8
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Change Log

Minor modes in effect:
  bug-reference-mode: t
  icomplete-mode: t
  desktop-save-mode: t
  delete-selection-mode: t
  display-time-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<escape> x r e p o r t - e m <tab> <return>

Recent messages:
Loading /Users/jhd/lib/elisp/BAK-file.el (source)...done
Loading cc-langs...done
Loading /Users/jhd/lib/elisp/ccsetup.el (source)...done
Loading desktop...done
Loading icomplete...done
Wrote /Users/jhd/src/emacs/current/.emacs.desktop.lock
Desktop: 1 frame, 30 buffers restored.
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
/Users/jhd/.emacs.d/elpa/magit-20130525.2329/.dir-locals hides 
/Users/jhd/Applications/Emacs.app/Contents/Resources/lisp/gnus/.dir-locals

Features:
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rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils vc-git vc-dir ewoc vc vc-dispatcher vc-bzr
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cus-start cus-load msb delsel advice help-fns cc-langs cl cl-loaddefs
cl-lib cc-mode cc-fonts easymenu cc-guess cc-menus cc-cmds cc-styles
cc-align cc-engine cc-vars cc-defs time time-date tooltip ediff-hook
vc-hooks lisp-float-type mwheel ns-win tool-bar dnd fontset image
regexp-opt fringe tabulated-list newcomment lisp-mode prog-mode register
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multi-tty emacs)