Why do I receive C++ linking errors using the MATLAB Compiler on Redhat/Mandrake Linux?

2009 6 27
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回答已采纳
更新时间：2026 7 29
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0 个投票

Why do I receive C++ linking errors using the MATLAB Compiler on Redhat/Mandrake Linux?
When I do the following:
/usr/matlab/bin/mbuild -v ex1.cpp
I receive the following errors:
ERROR: ex1.o(.text+0x41): In function `main':: undefined reference to `mwArray::mwArray[in-charge](int, int, double*, double*, int)'ex1.o(.text+0x5a): In function `main':: undefined reference to `mwArray::mwArray[in-charge](int, int, double*, double*, int)'ex1.o(.text+0x68): In function `main':: undefined reference to `mwArray::Write(std::basic_ostream<char, std::char_traits<char> >&) const'ex1.o(.text+0x88): In function `main':: undefined reference to `mwArray::Write(std::basic_ostream<char, std::char_traits<char> >&) const'ex1.o(.text+0xcd): In function `main':: undefined reference to `mwArray::Read(std::basic_istream<char, std::char_traints<char> >&, int)'ex1.o(.text+0xdb): In function `main':: undefined reference to `mwArray::Write(std::basic_ostream<char, std::char_traits<char> >&) const'ex1.o(.text+0x25d): In function _static_initialization_and_destruction_0(int, int)':: undefined reference to `mwLibraryInitBuiltins::mwLibraryInitBuiltins[in-charge]()'ex1.o(.text+0x2bc): In function `__tcf_0':: undefined reference to `mwLibraryInitBuiltins::~mwLibraryInitBuiltins [in-charge]()'collect2: ld returned 1 exit status mbuild: link of 'ex1' failed.
Or, I might see:
ERROR: /usr/lib/libc_nonshared.a(elf-init.oS): In function `__libc_csu_init': elf-init.oS(.text+0xb): undefined reference to `__init_array_end'elf-init.oS(.text+0x10): undefined reference to `__init_array_start'elf-init.oS(.text+0x23): undefined reference to `__init_array_start'/usr/lib/libc_nonshared.a(elf-init.oS): In function `__libc_csu_fini':elf-init.oS(.text+0x36): undefined reference to `__fini_array_end'elf-init.oS(.text+0x3b): undefined reference to `__fini_array_start'

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 采纳的回答

MathWorks Support Team
编辑：MathWorks Support Team 2026-7-29

0 个投票

This problem is caused by the iostream C++ library change between the 2.95 and 3.x versions of g++ (g++ 2.95 was used for our development of MATLAB 6.5 (R13)). You should change to gcc/g++ 2.95 in order to compile and link without errors.
Beware of using g++/gcc 2.96, which is included in several popular linux distributions. We have had users report problems when attempting to use gcc/g++ 2.96. For more information, see the GNU announcement about gcc/g++ 2.96:
https://gcc.gnu.org/gcc-2.96.html

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