octave-devel: error: 'CGDisplayBitsPerPixel' was not declared in this scope

[liamg@…]

I tried installing octave-devel on an OSX 10.7 machine both before and after the Portfile mods of 8/12/2011. It failed with the same error both times:

:info:build display.cc:73:46: error: 'CGDisplayBitsPerPixel' was not declared in this scope

The log file is over 10 MB long so I just attached the last partl I wasn't sure how much to include so I'll send more if necessary. I'm using Macports 2.01 on a MacBook Air. I installed octave-devel on my iMac under Snow Leopard and it still works under Lion.

[liamg@…]

log file excerpt

[ryandesign (Ryan Carsten Schmidt)]

Correct, ​CGDisplayBitsPerPixel does not exist anymore. It was deprecated in Snow Leopard and removed in Lion.

[ForTozs]

CC Me!!!

[sebastian@…]

Hi,

it compiles on Lion, if you add

--without-framework-carbon

to the configure.args section of

/opt/local/var/macports/sources/rsync.macports.org/release/tarballs/ports/math/octave-devel/Portfile

Bye Sebastian

[sebastian@…]

Portfile without carbon

[bpabbott@…]

A discussion of the same problem by developers of OpenSceneGraph is at the link below.

​http://forum.openscenegraph.org/viewtopic.php?t=8894

[bpabbott@…]

A work around is to use the 10.6 Caron Framework. This can be done by adding the "-mmacosx-version-min=10.6" to CPPFLAGS, CFLAGS, and LDFLAGS.

[jkeeler@…]

I had no luck with the CFLAGS option, but --without-framework-carbon option above worked for me. Using OS X 10.7.1

I also had success with this patch file, with carbon framework enabled.

  1 --- /opt/local/var/macports/sources/rsync.macports.org/release/ports/math/octave-devel/work/octave-3.4.2/src/display.cc 2011-04-11 07:57:08.000000000 -0700
  2 +++ /opt/local/var/macports/sources/rsync.macports.org/release/ports/math/octave-devel/work/octave-3.4.2/src/display.cc.new     2011-08-25 15:17:02.000000000 -0700
  3 @@ -39,6 +39,19 @@
  4 
  5  display_info *display_info::instance = 0;
  6 
  7 +size_t CGDisplayBitsPerPixel (CGDirectDisplayID display)
  8 +{
  9 +  CGDisplayModeRef originalMode = CGDisplayCopyDisplayMode (display);
 10 +  CFStringRef pixelEncoding = CGDisplayModeCopyPixelEncoding(originalMode);
 11 +
 12 +  if (CFStringCompare(pixelEncoding,CFSTR(IO32BitDirectPixels),0)==0)
 13 +    return 32;
 14 +  else if (CFStringCompare(pixelEncoding,CFSTR(IO16BitDirectPixels),0)==0)
 15 +    return 16;
 16 +  else 
 17 +    return 8;
 18 +}
 19 +
 20  void
 21  display_info::init (bool query)
 22  {

Also had to add this line to the Portfile:

patchfiles patch-src-display.cc.diff

and place the diff file above into /opt/local/var/macports/sources/rsync.macports.org/release/ports/math/octave-devel/files folder

good description for patching ports here: ​http://guide.macports.org/

[bpabbott@…]

@jkeeler, If you can provide a patch that will work with earlier versions of MacOS I can see that it is committed to Octave's development sources.

[bpabbott@…]

Cc Me!

[derekathomas@…]

Cc Me!

[michaelld (Michael Dickens)]

I just updated octave-devel to 3.4.3. Is this still an issue for others? I know of folks (using MacPorts) who have had success installing octave-devel on Lion.

[michaelld (Michael Dickens)]

I installed "octave-devel +fltk +gcc45" today on 10.7 (latest updates) -- worked just fine with the changes I checked in this morning in r87964 (and, without adding "--without-framework-carbon" to the configure arguments). That said, I'd bet that the OP didn't do +fltk, and thus the "default" display is being selected ... which even with 3.4.3 (I just checked) uses "CGDisplayBitsPerPixel". I'll try compiling without +fltk tomorrow & see if that produces this error; and, if so, I'll try the patch above.

[michaelld (Michael Dickens)]

Fixed in r88087.

[onurdomanic@…]

I'm trying building octave-devel in Mountain Lion and getting the same error. I have MacPorts 2.1.2 and Xcode 4.4 and everything is up to date.

[onurdomanic@…]

Cc Me!

[bpabbott@…]

Octave's sources have recently been ​patched with the intent of fixing this.

Regarding "the same error", are you seeing;

:info:build display.cc:73:46: error: 'CGDisplayBitsPerPixel' was not declared in this scope

If so the fix should be simple. The portfile for octave-devel has the lines below. A similar block can be added for 10.8 (darwin 12).

95    platform darwin 11 {
96	    # 10.7 requires an extra patch; this patch will break the build on
97	    # 10.6 and prior, so apply it only under 10.7.
98	    patchfiles-append patch-src-display.cc.diff
99	}

[mechgyver@…]

Cc Me!

[onurdomanic@…]

Thanks for the help. I added a similar block for darwin 12 as you suggested and that particular error is gone, but now I see another one:

:info:build sed: RE error: illegal byte sequence

I'm attaching the log file.

[onurdomanic@…]

for error ":info:build sed: RE error: illegal byte sequence"

[michaelld (Michael Dickens)]

Hopefully this ticket is addressed in r97159. Please do a seflupdate and then see if the new octave-devel works for you. I'm leaving this ticket open for now, hoping for feedback (one way or the other).

[michaelld (Michael Dickens)]

OK; so I'll backtrack a bit on my word :) This ticket's issue is fixed, so I'm closing it. If the ":info:build sed: RE error: illegal byte sequence" error continues after the latest changes, please open a new ticket.