[GitHub] [incubator-mxnet] aashudwivedi removed a comment on issue #14332: MXNet static library build results in error in centos, oracle linux and similar distros

[GitBox]

aashudwivedi removed a comment on issue #14332: MXNet static library build 
results in error in centos, oracle linux and similar distros
URL: 
https://github.com/apache/incubator-mxnet/issues/14332#issuecomment-480588295
 
 
   @lanking520 Thanks that helped and I was able to build for Cent OS 7.
   I've been trying to build it for Cent OS 6.9 as well (which required 
upgrading a few more things like nasm compiler). But I keep running into this 
error while using the compiled lib: 
   
   ```Exception in thread "main" java.lang.UnsatisfiedLinkError: 
/tmp/mxnet3708514393684345361/mxnet-scala: /usr/lib64/libstdc++.so.6: version 
`GLIBCXX_3.4.18' not found (required by /
   tmp/mxnet3708514393684345361/mxnet-scala```
   
   Do you have any suggestions on how can I go about fixing this? 
   I have tried using the `-static-libstdc++` flag without much luck.
   


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[GitHub] [incubator-mxnet] aashudwivedi removed a comment on issue #14332: MXNet static library build results in error in centos, oracle linux and similar distros

[GitBox]

aashudwivedi removed a comment on issue #14332: MXNet static library build 
results in error in centos, oracle linux and similar distros
URL: 
https://github.com/apache/incubator-mxnet/issues/14332#issuecomment-470151109
 
 
   Thanks for the help @lanking520 
   I am not able to use the libs which are built in ubuntu, in centos. It runs 
into an error for missing .so files.
   To build in ole7 / centos, I have added the following lines in the script 
build_lib.sh before the line `>&2 echo "Checking linked objects on 
libmxnet.so..."`
   ```
   for libname in $(ls staticdeps/lib64/*.a | xargs -n 1 basename)
   do
   cp -fL staticdeps/lib64/$libname staticdeps/lib/$libname
   done
   
   cp -L /usr/lib64/libgfortran.so.3 lib/libgfortran.so.3
   cp -L 
/usr/gcc-4.8.5/release/x86_64-unknown-linux-gnu/libquadmath/.libs/libquadmath.so
 lib/libquadmath.so.0
   ```
   
   which resolves the previous error.  However the build still fails, with the 
error message : 
   
   ```
   /usr/bin/ld: skipping incompatible /lib/librt.so when searching for -lrt
   /usr/bin/ld: cannot find -lgfortran
   /usr/bin/ld: skipping incompatible /lib/libdl.so when searching for -ldl
   /usr/bin/ld: skipping incompatible /lib/libm.so when searching for -lm
   /usr/bin/ld: skipping incompatible /lib/libpthread.so when searching for 
-lpthread
   collect2: error: ld returned 1 exit status
   make: *** [lib/libmxnet.so] Error 1
   make: *** Waiting for unfinished jobs
   /usr/bin/ld: skipping incompatible /lib/librt.so when searching for -lrt
   /usr/bin/ld: cannot find -lgfortran
   /usr/bin/ld: skipping incompatible /lib/libdl.so when searching for -ldl
   /usr/bin/ld: skipping incompatible /lib/libm.so when searching for -lm
   /usr/bin/ld: skipping incompatible /lib/libpthread.so when searching for 
-lpthread
   collect2: error: ld returned 1 exit status
   make: *** [bin/im2rec] Error 1
   ```


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