Problem when compiling MEX functions in Linux

[lefundes...@gmail.com]

Hi,

I'm trying to compile the mex functions from the MVTB. I've made sure to install gcc 4.9 for compatibility, but still I get the following error when using either make from my system's terminal or from inside matlab:

mex CFLAGS=-std=c99 -g closest.c

Building with 'gcc'.

/usr/bin/ld: /tmp/mex_2525300140537866_21902/closest.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC

/tmp/mex_2525300140537866_21902/closest.o: error adding symbols: Bad value

collect2: error: ld returned 1 exit status

Makefile:25: recipe for target 'mex' failed

make: *** [mex] Error 255

Any ideas on how to fix this? 

[Peter Corke]

I haven't built MEX files on linux for a long time, I don't have a linux machine or VM at the moment.

Sadly this is a MATLAB issue, not a toolbox issue.  Some things to try, sorry if you've already done this:

- gcc version is appropriate for the version of MATLAB

- you are using the correct mex binary

- there is a mex -setup option

- a quick google shows other people discussing this issue, eg. https://github.com/BVLC/caffe/issues/2171

- contact MATLAB technical support, that's what you pay for

peter

[任春]

 how do you solve it?

[任春]

Hi,can you tell me how do you solve this problem?I have the same question with you ,please give me the answer at your convenience.

On Friday, January 5, 2018 at 7:02:59 AM UTC+8 lefundes...@gmail.com wrote: