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[OpenFOAM.org] Building OpenFOAM 3.0 on ArchLinux

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Old   December 9, 2015, 15:35
Default Building OpenFOAM 3.0 on ArchLinux
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Hello,

the last two days I tried installing OpenFoam 3.0 on my ArchLinux System, but I keep getting the same error while building the applications. Below is the first error:
Code:
+ wmake -all utilities
make[1]: Entering directory '/opt/OpenFOAM/OpenFOAM-3.0.0/applications/utilities/mesh'
make[2]: Entering directory '/opt/OpenFOAM/OpenFOAM-3.0.0/applications/utilities/mesh/advanced'
/opt/OpenFOAM/OpenFOAM-3.0.0/applications/utilities/mesh/advanced/autoRefineMesh
make[3]: Entering directory '/opt/OpenFOAM/OpenFOAM-3.0.0/applications/utilities/mesh/advanced/autoRefineMesh'
g++ -m64 -Dlinux64 -DWM_ARCH_OPTION=64 -DWM_DP -DWM_LABEL_SIZE=32 -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -O3  -DNoRepository -ftemplate-depth-100 -I/opt/OpenFOAM/OpenFOAM-3.0.0/src/dynamicMesh/lnInclude -I/opt/OpenFOAM/OpenFOAM-3.0.0/src/meshTools/lnInclude -I/opt/OpenFOAM/OpenFOAM-3.0.0/src/triSurface/lnInclude -I/opt/OpenFOAM/OpenFOAM-3.0.0/src/lagrangian/basic/lnInclude -IlnInclude -I. -I/opt/OpenFOAM/OpenFOAM-3.0.0/src/OpenFOAM/lnInclude -I/opt/OpenFOAM/OpenFOAM-3.0.0/src/OSspecific/POSIX/lnInclude   -fPIC -Xlinker --add-needed -Xlinker --no-as-needed /opt/OpenFOAM/OpenFOAM-3.0.0/platforms/linux64GccDPInt32Opt/applications/utilities/mesh/advanced/autoRefineMesh/autoRefineMesh.o -L/opt/OpenFOAM/OpenFOAM-3.0.0/platforms/linux64GccDPInt32Opt/lib \
    -ldynamicMesh -lmeshTools -ltriSurface -llagrangian -lOpenFOAM -ldl  \
     -lm -o /opt/OpenFOAM/OpenFOAM-3.0.0/platforms/linux64GccDPInt32Opt/bin/autoRefineMesh
/opt/OpenFOAM/OpenFOAM-3.0.0/platforms/linux64GccDPInt32Opt/lib/libtriSurface.so: undefined reference to `yyFlexLexer::yywrap()'
collect2: error: ld returned 1 exit status
I also tried installing version 2.4 from the AUR (a version with modifications for Arch), but the whole applications where missing. So I guess there was the same error.

I use gcc 5.2 and flex 2.6

I hope someone can help, because I really don't wanna install Ubuntu

Thanks,
Steve
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Old   December 9, 2015, 15:50
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Greetings Steve and welcome to the forum!

Any chance you can downgrade your flex installation from 2.6 to 2.5.35? Because apparently that's the origin of the problem, since apparently there is something too new in 2.6 that OpenFOAM is not yet ready to handle.

Best regards,
Bruno
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Old   December 9, 2015, 16:39
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Thanks you for response Bruno.

Luckily I found a flex-2.5.35 package on some outdated mirror, but sadly it doesn't fix the problem. Is it possible that gcc 5.2 is too new?

Thanks,
Steve
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Old   December 9, 2015, 17:36
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Quote:
Originally Posted by coldice View Post
Luckily I found a flex-2.5.35 package on some outdated mirror, but sadly it doesn't fix the problem. Is it possible that gcc 5.2 is too new?
Quick answer: If you now are using flex 2.5.35, then you need to rebuild many of the libraries and applications, otherwise you will still have some objects using the previous flex installation, which resulted in the error message you got before. Running the following commands:
Code:
foam
wclean all
should ensure you reset the build and are now able to run Allwmake again for rebuilding everything. This way you avoid having to manually find which libraries and applications rely on flex.

As for GCC 5.2: it's fully supported in OpenFOAM 3.0 and it's the version used with Ubuntu 15.10.
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Old   December 10, 2015, 08:05
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Thank you very much for your help, I build everything over night and know it works perfectly

Thanks,
Steve
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Old   December 26, 2015, 14:22
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Quote:
Originally Posted by coldice View Post
Thank you very much for your help, I build everything over night and know it works perfectly

Thanks,
Steve
I was wondering if you could explain what exactly was the problem. I am having the same issue and I am not able to resolve it. Would you be able to to provide some hints in regard to this?

It is greatly appreciated.
Milad
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Old   December 26, 2015, 16:32
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I don't know exactly what the problem was, only how I resolved the issue. Like I said I found a old version of flex on some canadian server, but I lost the link. If you don't find another old version you could try this one: https://aur.archlinux.org/packages/flex-android
But I haven't tested this one. I hope I could help a little
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Old   January 17, 2016, 05:29
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Greetings Steve, Bruno and Milad!
And to whom it may concern:

Recently Arch Linux upgraded flex to version 2.6.0-1. This break out the compilation for libtriSurface.so . To resolve this issue, you just need a simple patch , which is attached below:

Code:
diff --git a/src/triSurface/triSurface/interfaces/STL/readSTLASCII.L b/src/triSurface/triSurface/interfaces/STL/readSTLASCII.L
index 3c732c1..558b483 100644
--- a/src/triSurface/triSurface/interfaces/STL/readSTLASCII.L
+++ b/src/triSurface/triSurface/interfaces/STL/readSTLASCII.L
@@ -55,7 +55,7 @@ int yyFlexLexer::yylex()
// It is called by yylex but is not used as the mechanism to change file.
// See <<EOF>>
//! \cond dummy
-#if YY_FLEX_SUBMINOR_VERSION < 34
+#if YY_FLEX_SUBMINOR_VERSION < 34 && YY_FLEX_MINOR_VERSION < 6
extern "C" int yywrap()
#else
int yyFlexLexer::yywrap()
EDIT:
The package upgrade log is stored at /var/log/pacman.log. The following command show the upgrade log for flex.

Code:
➜  ~  grep 'flex' /var/log/pacman.log 
[2014-03-31 19:12] [PACMAN] installed flex (2.5.39-1)
[2015-12-08 18:28] [ALPM] upgraded flex (2.5.39-1 -> 2.6.0-1)

Regards,
Weiwen
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Old   January 31, 2016, 11:39
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Just to wrap this thread, the issue/fix indicated by wwzhao has been fixed on OpenFOAM, as reported here: http://www.openfoam.org/mantisbt/view.php?id=1974

Looks like it was reported by the forum member from this post: http://www.cfd-online.com/Forums/ope...tml#post581443 - post #2
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