OpenROAD Build From Sources

[sebinho]

Hello Guys,

I am using ArchLinux and I have been using OpenROAD from an install package from the AUR.
This install does not seem to work anymore (it was working on my setup a couple of weeks ago).

So I am trying to build from sources but I get the same errors as I get with the AUR package:

[ 74%] Building CXX object src/gui/CMakeFiles/gui.dir/src/scriptWidget.cpp.o
In file included from /home/zed/repos/OpenROAD/src/gui/src/tclCmdInputWidget.h:50,
                 from /home/zed/repos/OpenROAD/src/gui/src/scriptWidget.cpp:49:
/home/zed/repos/OpenROAD/build/src/gui/tclSwig.h: In function ‘int SWIG_Tcl_GetArgs(Tcl_Interp*, int, Tcl_Obj* const*, const char*, ...)’:
/home/zed/repos/OpenROAD/build/src/gui/tclSwig.h:1623:11: error: ‘Tcl_Size’ was not declared in this scope; did you mean ‘Tcl_Time’?
 1623 |           Tcl_Size *vlptr = (Tcl_Size *) va_arg(ap, void *);
      |           ^~~~~~~~
      |           Tcl_Time
/home/zed/repos/OpenROAD/build/src/gui/tclSwig.h:1623:21: error: ‘vlptr’ was not declared in this scope; did you mean ‘vptr’?
 1623 |           Tcl_Size *vlptr = (Tcl_Size *) va_arg(ap, void *);
      |                     ^~~~~
      |                     vptr
/home/zed/repos/OpenROAD/build/src/gui/tclSwig.h:1623:40: error: expected primary-expression before ‘)’ token
 1623 |           Tcl_Size *vlptr = (Tcl_Size *) va_arg(ap, void *);
      |                                        ^
make[2]: *** [src/gui/CMakeFiles/gui.dir/build.make:226: src/gui/CMakeFiles/gui.dir/src/scriptWidget.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
[ 74%] Building CXX object src/rcx/src/CMakeFiles/rcxUnitTest.dir/__/test/ext2dBoxTest.cpp.o
In file included from /home/zed/repos/OpenROAD/build/src/gui/gui_autogen/UVLADIE3JM/../../../../../src/gui/src/tclCmdInputWidget.h:50,
                 from /home/zed/repos/OpenROAD/build/src/gui/gui_autogen/UVLADIE3JM/moc_tclCmdInputWidget.cpp:10,
                 from /home/zed/repos/OpenROAD/build/src/gui/gui_autogen/mocs_compilation.cpp:23:
/home/zed/repos/OpenROAD/build/src/gui/tclSwig.h: In function ‘int SWIG_Tcl_GetArgs(Tcl_Interp*, int, Tcl_Obj* const*, const char*, ...)’:
/home/zed/repos/OpenROAD/build/src/gui/tclSwig.h:1623:11: error: ‘Tcl_Size’ was not declared in this scope; did you mean ‘Tcl_Time’?
 1623 |           Tcl_Size *vlptr = (Tcl_Size *) va_arg(ap, void *);
      |           ^~~~~~~~
      |           Tcl_Time
/home/zed/repos/OpenROAD/build/src/gui/tclSwig.h:1623:21: error: ‘vlptr’ was not declared in this scope; did you mean ‘vptr’?
 1623 |           Tcl_Size *vlptr = (Tcl_Size *) va_arg(ap, void *);
      |                     ^~~~~
      |                     vptr
/home/zed/repos/OpenROAD/build/src/gui/tclSwig.h:1623:40: error: expected primary-expression before ‘)’ token
 1623 |           Tcl_Size *vlptr = (Tcl_Size *) va_arg(ap, void *);
      |                                        ^
[ 74%] Linking CXX executable dpl_test

Seems to be something related to Swig with TCL. Does anybody know what the problem is?

Thanks for your help

[maliberty]

What version of TCL and swig do you have installed?

[sebinho]

@maliberty I have the following versions:

> tclsh
% puts $tcl_version
8.6
% 

And for swig:

> swig -version
SWIG Version 4.2.1

Compiled with g++ [x86_64-pc-linux-gnu]

Configured options: +pcre

[maliberty]

Perhaps something is different in 4.2.1 as with 4.1.0 I don't see any used of Tcl_Size in tclSwig.h. Is it possible for you to downgrade?

[sebinho]

Great finding, this indeed solves my issue. I now keep Swig at 6.1.0 for the time being.
Many thanks

[QuantamHD]

It appears to be an upstream SWIG issue swig/swig#2887

[stefanottili]

Does anybody know how to downgrade swig on MacOS M1 homebrew ?
The current SWIG Version 4.2.1 causes the same error here.
Can be worked around by commenting out the two offending lines, they seem to be in an error path ...

[stefanottili]

To get swig 4.1.1 with homebrew I followed the instructions here
https://nelson.cloud/how-to-install-older-versions-of-homebrew-packages

curl https://raw.githubusercontent.com/Homebrew/homebrew-core/c83c8aaa6505c3ea28c35bc45a54234f79e46c5d/Formula/s/swig.rb > swig.rb
brew uninstall swig
brew install swig.rb
brew pin swig