[Pervispasco]

Hi,
i tried to compile OpenFoam 2.3.0 on my macbook pro with el capitan following this tutorial:

https://sourceforge.net/projects/ope...ormacyosemite/

Everything went fine without troubles, but when i try to use blockMesh to the cavity case i get this error:

dyld: Symbol not found: __ZN11yyFlexLexer6yywrapEv
Referenced from: /Users/tommasopascon/OpenFOAM/OpenFOAM-2.3.0/platforms/darwinIntel64Gcc46DPOpt/lib/libsurfMesh.dylib
Expected in: flat namespace
in /Users/tommasopascon/OpenFOAM/OpenFOAM-2.3.0/platforms/darwinIntel64Gcc46DPOpt/lib/libsurfMesh.dylib
Trace/BPT trap: 5

Can someone help me with this cause i tried to find some other threads for a possibile solution but i couldn't find anything suitable.

Thanks in advance for you help.

[rdbisme]

Originally Posted by Pervispasco

Hi,
i tried to compile OpenFoam 2.3.0 on my macbook pro with el capitan following this tutorial:

https://sourceforge.net/projects/ope...ormacyosemite/

Everything went fine without troubles, but when i try to use blockMesh to the cavity case i get this error:

dyld: Symbol not found: __ZN11yyFlexLexer6yywrapEv
Referenced from: /Users/tommasopascon/OpenFOAM/OpenFOAM-2.3.0/platforms/darwinIntel64Gcc46DPOpt/lib/libsurfMesh.dylib
Expected in: flat namespace
in /Users/tommasopascon/OpenFOAM/OpenFOAM-2.3.0/platforms/darwinIntel64Gcc46DPOpt/lib/libsurfMesh.dylib
Trace/BPT trap: 5

Can someone help me with this cause i tried to find some other threads for a possibile solution but i couldn't find anything suitable.

Thanks in advance for you help.

Since the instructions listed on the site you provided are for 2.2.0, did you try to follow this on the wiki?

[Pervispasco]

Solved thanks!
I used docker instead...everything works fine now!

[windscion]

Originally Posted by Pervispasco

Hi,
i tried to compile OpenFoam 2.3.0 on my macbook pro with el capitan following this tutorial:

https://sourceforge.net/projects/ope...ormacyosemite/

Everything went fine without troubles, but when i try to use blockMesh to the cavity case i get this error:

dyld: Symbol not found: __ZN11yyFlexLexer6yywrapEv
Referenced from: /Users/tommasopascon/OpenFOAM/OpenFOAM-2.3.0/platforms/darwinIntel64Gcc46DPOpt/lib/libsurfMesh.dylib
Expected in: flat namespace
in /Users/tommasopascon/OpenFOAM/OpenFOAM-2.3.0/platforms/darwinIntel64Gcc46DPOpt/lib/libsurfMesh.dylib
Trace/BPT trap: 5

Can someone help me with this cause i tried to find some other threads for a possibile solution but i couldn't find anything suitable.

Thanks in advance for you help.

This is caused by an obsolete version check on the flex library.
I used this hack to allow macport's flex (2.6.0) to work with the package:

from $HOME/OpenFOAM/OpenFoam-2.3.x, type
% find . -name '*.L' -print

then for each file found above, change
#if YY_FLEX_SUBMINOR_VERSION < 34
to
#if YY_FLEX_SUBMINOR_VERSION < 34 && YY_FLEX_MINOR_VERSION < 6
and then the code will work properly with flex 2.6. Or you can use flex 2.5.34, of course.

[peter79634]

Originally Posted by windscion

This is caused by an obsolete version check on the flex library.
I used this hack to allow macport's flex (2.6.0) to work with the package:

from $HOME/OpenFOAM/OpenFoam-2.3.x, type
% find . -name '*.L' -print

then for each file found above, change
#if YY_FLEX_SUBMINOR_VERSION < 34
to
#if YY_FLEX_SUBMINOR_VERSION < 34 && YY_FLEX_MINOR_VERSION < 6
and then the code will work properly with flex 2.6. Or you can use flex 2.5.34, of course.

Thank you VERY much!! I followed your procedures and solved my problem!! I've been working on installing OpenFOAM on my macbook pro for nearly a week and came across loads of problems. This is my last problem and you helped me solve it. You saved my day!!! Thanks again!!!

[matejfor]

Hi,

if you want to use more recent version (the latest) of OpenFOAM, which I strongly recommend for many reasons, try the OpenFOAM+ by OpenCFD. For Mac you install everything easily into docker. It is smooth and easy. Have a look here: http://openfoam.com/download/install-binary-mac.php

Happy foaming