cscope @15.9: symbol not found in flat namespace '_yylex'

[sudheerhebbale (Sudheer Hebbale)]

Installation and upgrade of went through successfully

When I run cscope on commandline the following error gets thrown

$ cscope
dyld[39272]: symbol not found in flat namespace '_yylex'
Abort

Unable to figure out the issue

[sudheerhebbale (Sudheer Hebbale)]

This was raised and fixed vide #63793 in Nov 2021.

The changes suggested in that fix are present in /opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/devel/cscope/Portfile

[ryandesign (Ryan Carsten Schmidt)]

Is this still using Monterey as in the other ticket?

[sudheerhebbale (Sudheer Hebbale)]

Yes OS is Macos Monterey Version 12.1

There was a recent OS upgrade to 12.1 and new version of XCode as well

[ryandesign (Ryan Carsten Schmidt)]

Replying to sudheerhebbale:

$ cscope
dyld[39272]: symbol not found in flat namespace '_yylex'
Abort

Now that I've tested on Monterey, I see the same thing.

On Big Sur, I see:

% cscope
cscope: no source files found

On Catalina, I see:

$ cscope
Cscope version 15.9                             Press the ? key for help

Find this C symbol:
Find this global definition:
Find functions called by this function:
Find functions calling this function:
Find this text string:
Change this text string:
Find this egrep pattern:
Find this file:
Find files #including this file:
Find assignments to this symbol:
cscope: no source files found

I'm surprised to see different output on different OS versions.

I'm looking into some undefined _yylex symbol issues in other ports right now so maybe that will lead me to a solution for this as well.

It's probably nothing specific to MacPorts so it probably needs to get reported to the developer of cscope. If I can figure out a solution I'll report it to them with the solution, otherwise I can just report it.

[ryandesign (Ryan Carsten Schmidt)]

Replying to ryandesign:

On Big Sur, I see:

% cscope
cscope: no source files found

Interestingly, if I run this binary (that was compiled on Big Sur) on Monterey, I see the original error:

% /Volumes/BigSur\ -\ Data/opt/local/bin/cscope       
dyld[864]: symbol not found in flat namespace '_yylex'
zsh: abort      /Volumes/BigSur\ -\ Data/opt/local/bin/cscope

Searching for "symbol not found in flat namespace" on Google I see lots of hits from people on Monterey. I suspect this is some new check that dyld is doing on Monterey.

[sudheerhebbale (Sudheer Hebbale)]

Appreciate your efforts.

Hope the developer of cscope will be able to fix it

Sudheer

[ryandesign (Ryan Carsten Schmidt)]

I reported it here: ​https://sourceforge.net/p/cscope/bugs/303/

Maybe they'll come up with the answer before me.

[ryandesign (Ryan Carsten Schmidt)]

In d74dd2a9aadc1122e47776a54e36398e1cd9e4dd/macports-ports (master):

cscope: Don't strip the executable

I don't understand why this fixes the problem. There may be a deeper
issue that's being hidden by not stripping.

Closes: #64448

[sudheerhebbale (Sudheer Hebbale)]

The problem does not happen with 15.9.2 and the fix

[ryandesign (Ryan Carsten Schmidt)]

Thanks for confirming. The developer feels that stripping a program shouldn't break it in this way, and I agree, so I reported it to Apple as feedback id FB9866173.

[ryandesign (Ryan Carsten Schmidt)]

Apple closed my feedback saying it behaves as designed, but the text of their response indicated they didn't really understand the problem. I don't have the energy to argue with them. Somebody else should re-file the bug with them.