如何提供Matlab与它想要的旧gcc版本？ [英] How to provide Matlab with the old gcc version it wants?

问题描述

在我的电脑我有Ubuntu 10.10与gcc 4.4.4。我尝试编译一些使用CUDA的mex文件，并得到以下错误信息：

 > cns_build（'hmax'）
 compiling ... 
 /home/leMe/hmax/cns/source/common_dec.h(54）：warning：省略异常规范与以前的函数operator new （size_t）
 /usr/include/c++/4.4/new(91）：here 
 /home/leMe/hmax/cns/source/common_dec.h(55）：warning：省略异常规范与以前的函数operator new []（size_t）不兼容
 /usr/include/c++/4.4/new(92）：here 
 / home / leMe / hmax / cns / source / common_dec .h（56）：warning：省略异常规范与以前的函数operator delete（void *）不兼容
 /usr/include/c++/4.4/new(93）：here 
 / home /leMe/hmax/cns/source/common_dec.h(57）：warning：省略异常规范与以前的函数operator delete []（void *）不兼容
 /usr/include/c++/4.4/ new（94）：here 
 
分段错误
 CUDA预处理[nvcc]失败
警告：您使用的是gcc版本4.4.4-14ubuntu5）。 MEX当前支持的版本
为4.2.3。 
有关当前支持的编译器的列表，请参阅：
 http://www.mathworks.com/support/compilers/current_release/ 
 CPU编译成功
  
 
 
 
 我假设通过链接Matlab和gcc 4.2.3我可以摆脱错误，但我不知道如何做 
 
 
 
   mex -setup 提供以下选项： p> 
 
 
  1：/home/leMe/Matlab/bin/gccopts.sh：
用于构建gcc MEX文件的模板选项文件
 
 2：/home/leMe/Matlab/bin/mexopts.sh：
用于通过系统构建MEX文件的模板选项文件ANSI编译器
  
 
 
解决方案
我通过更改我的 mexopts.sh文件解决了，〜/ matlab / R2009b / mexopts.sh （更改为您的matlab版本）
 
 
 
架构（对我来说是 glnxa64 ），并改变它像这样：
  ;; 
 glnxa64）＃< -----------------------找到这个
 RPATH = -  wl，-rpath-link，$ TMW_ROOT / bin / $ Arch
＃StorageVersion：1.0 
＃CkeyName：GNU C 
＃CkeyManufacturer：GNU 
＃CkeyLanguage：C 
＃CkeyVersion：
 CC ='gcc-4.1'＃< ---------------------------------- CHANGE HERE 
 CFLAGS =' -  ansi -D_GNU_SOURCE'
 CFLAGS =$ CFLAGS -fexceptions
 CFLAGS =$ CFLAGS -fPIC -fno-omit-frame-pointer -pthread
 CLIBS = $ RPATH $ MLIBS -lm
 COPTIMFLAGS =' -  O -DNDEBUG'
 CDEBUGFLAGS =' -  g'
 CLIBS =$ CLIBS -lstdc ++
＃
 ＃C ++ keyName：GNU C ++ 
＃C ++ keyManufacturer：GNU 
＃C ++ keyLanguage：C ++ 
＃C ++ keyVersion：
 CXX ='g ++  -  4.1 '＃< ---------------------------------- CHANGE HERE 
 CXXFLAGS =' -  ansi  - D_GNU_SOURCE'
 CXXFLAGS =$ CXXFLAGS -fPIC -fno-omit-frame-pointer -pthread
 CXXLIBS =$ RPATH $ MLIBS -lm
 CXXOPTIMFLAGS =' -  O -DNDEBUG' 
 CXXDEBUGFLAGS =' -  g'
  
 
 
 PS：您还需要安装正确的版本gcc 
 
On my computer I have Ubuntu 10.10 with gcc 4.4.4. I try to compile some mex files which use CUDA and I get following error message:
>> cns_build('hmax')
compiling...
/home/leMe/hmax/cns/source/common_dec.h(54): warning: omission of exception specification is incompatible with previous function "operator new(size_t)"
/usr/include/c++/4.4/new(91): here
/home/leMe/hmax/cns/source/common_dec.h(55): warning: omission of exception specification is incompatible with previous function "operator new[](size_t)"
/usr/include/c++/4.4/new(92): here
/home/leMe/hmax/cns/source/common_dec.h(56): warning: omission of exception specification is incompatible with previous function "operator delete(void *)"
/usr/include/c++/4.4/new(93): here
/home/leMe/hmax/cns/source/common_dec.h(57): warning: omission of exception specification is incompatible with previous function "operator delete[](void *)"
/usr/include/c++/4.4/new(94): here

Segmentation fault
CUDA preprocessing [nvcc] failed
Warning: You are using gcc version "4.4.4-14ubuntu5)".  The version
         currently supported with MEX is "4.2.3".
         For a list of currently supported compilers see: 
         http://www.mathworks.com/support/compilers/current_release/
CPU compilation successful
I assume by linking Matlab with gcc 4.2.3 I can get rid of the error, but I don't know how to do it.

mex -setup gives me following options:
1: /home/leMe/Matlab/bin/gccopts.sh : 
      Template Options file for building gcc MEX-files

  2: /home/leMe/Matlab/bin/mexopts.sh : 
      Template Options file for building MEX-files via the system ANSI compiler

解决方案
I solved it by changing my mexopts.sh file, in ~/matlab/R2009b/mexopts.sh (change with your matlab version)

Find your architecture (for me it's glnxa64), and change it like this:
        ;;
    glnxa64) #<----------------------- FIND THIS
        RPATH="-Wl,-rpath-link,$TMW_ROOT/bin/$Arch"
        # StorageVersion: 1.0
        # CkeyName: GNU C
        # CkeyManufacturer: GNU
        # CkeyLanguage: C
        # CkeyVersion:
        CC='gcc-4.1' #<---------------------------------- CHANGE HERE
        CFLAGS='-ansi -D_GNU_SOURCE'
        CFLAGS="$CFLAGS  -fexceptions"
        CFLAGS="$CFLAGS -fPIC -fno-omit-frame-pointer -pthread"
        CLIBS="$RPATH $MLIBS -lm"
        COPTIMFLAGS='-O -DNDEBUG'
        CDEBUGFLAGS='-g'
        CLIBS="$CLIBS -lstdc++"
        #
        # C++keyName: GNU C++
        # C++keyManufacturer: GNU
        # C++keyLanguage: C++
        # C++keyVersion: 
        CXX='g++-4.1' #<---------------------------------- CHANGE HERE
        CXXFLAGS='-ansi -D_GNU_SOURCE'
        CXXFLAGS="$CXXFLAGS -fPIC -fno-omit-frame-pointer -pthread"
        CXXLIBS="$RPATH $MLIBS -lm"
        CXXOPTIMFLAGS='-O -DNDEBUG'
        CXXDEBUGFLAGS='-g'
PS: you also need to install the right version of gcc

                        
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