所以我一直在尝试使用mex来编译这段代码。问题是似乎无法找到lstdc++和lpthread和libm出于任何不兼容的原因。我的/usr/lib32文件夹如下所示：
iggy@ThinkpadX1:~/Applications/Matlab_2012a/bin$ ls /usr/lib32/
crt1.o libanl.so libc_nonshared.a libg.a libmcheck.a libnss_files.so libpthread.so librt.so libz.so.1
crti.o libBrokenLocale.a libcrypt.a libgcc_s.so.1 libm.so libnss_hesiod.so libquadmath.so.0 libstdc++.so.6 libz.so.1.2.3.4
crtn.o libBrokenLocale.so libcrypt.so libgomp.so.1 libnsl.a libnss_nisplus.so libquadmath.so.0.0.0 libstdc++.so.6.0.16 Mcrt1.o
gconv libbsd-compat.a libc.so libgomp.so.1.0.0 libnsl.so libnss_nis.so libresolv.a libthread_db.so Scrt1.o
gcrt1.o libc.a libdl.a libieee.a libnss_compat.so libpthread.a libresolv.so libutil.a
libanl.a libcidn.so libdl.so libm.a libnss_dns.so libpthread_nonshared.a librt.a libutil.so
我收到的错误如下：
K>> make_csolve
**************************************************************************
Warning: Neither -compatibleArrayDims nor -largeArrayDims is selected.
Using -compatibleArrayDims. In the future, MATLAB will require
the use of -largeArrayDims and remove the -compatibleArrayDims
option. For more information, see:
http://www.mathworks.com/help/techdoc/matlab_external/bsflnue-1.html
**************************************************************************
/home/iggy/Applications/Matlab_2012a/bin/mex: 1: /home/iggy/Applications/Matlab_2012a/bin/util/oscheck.sh: /lib64/libc.so.6: not found
/home/iggy/Applications/Matlab_2012a/bin/mex: 1: /home/iggy/Applications/Matlab_2012a/bin/util/oscheck.sh: /lib64/libc.so.6: not found
-> mexopts.sh sourced from directory (DIR = $MATLAB/bin)
FILE = /home/iggy/Applications/Matlab_2012a/bin/mexopts.sh
----------------------------------------------------------------
-> MATLAB = /home/iggy/Applications/Matlab_2012a
-> CC = gcc-4.4
-> CC flags:
CFLAGS = -ansi -D_GNU_SOURCE -fexceptions -fPIC -fno-omit-frame-pointer -pthread
CDEBUGFLAGS = -g
COPTIMFLAGS = -O -DNDEBUG
CLIBS = -Wl,-rpath-link,/home/iggy/Applications/Matlab_2012a/bin/glnxa64 -L/usr/lib32 -L/home/iggy/Applications/Matlab_2012a/bin/glnxa64 -lmx -lmex -lmat -lm -lstdc++
arguments = -DMX_COMPAT_32
-> CXX = g++-4.4
-> CXX flags:
CXXFLAGS = -ansi -D_GNU_SOURCE -fPIC -fno-omit-frame-pointer -pthread
CXXDEBUGFLAGS = -g
CXXOPTIMFLAGS = -O -DNDEBUG
CXXLIBS = -Wl,-rpath-link,/home/iggy/Applications/Matlab_2012a/bin/glnxa64 -L/home/iggy/Applications/Matlab_2012a/bin/glnxa64 -lmx -lmex -lmat -lm
arguments = -DMX_COMPAT_32
-> FC = gfortran
-> FC flags:
FFLAGS = -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer
FDEBUGFLAGS = -g
FOPTIMFLAGS = -O
FLIBS = -Wl,-rpath-link,/home/iggy/Applications/Matlab_2012a/bin/glnxa64 -L/home/iggy/Applications/Matlab_2012a/bin/glnxa64 -lmx -lmex -lmat -lm
arguments = -DMX_COMPAT_32
-> LD = gcc-4.4
-> Link flags:
LDFLAGS = -pthread -shared -Wl,--version-script,/home/iggy/Applications/Matlab_2012a/extern/lib/glnxa64/mexFunction.map -Wl,--no-undefined
LDDEBUGFLAGS = -g
LDOPTIMFLAGS = -O
LDEXTENSION = .mexa64
arguments =
-> LDCXX =
-> Link flags:
LDCXXFLAGS =
LDCXXDEBUGFLAGS =
LDCXXOPTIMFLAGS =
LDCXXEXTENSION =
arguments =
----------------------------------------------------------------
-> gcc-4.4 -c -I/home/iggy/Applications/Matlab_2012a/extern/include -I/home/iggy/Applications/Matlab_2012a/simulink/include -DMATLAB_MEX_FILE -ansi -D_GNU_SOURCE -fexceptions -fPIC -fno-omit-frame-pointer -pthread -DMX_COMPAT_32 -O -DNDEBUG "csolve.c"
-> gcc-4.4 -c -I/home/iggy/Applications/Matlab_2012a/extern/include -I/home/iggy/Applications/Matlab_2012a/simulink/include -DMATLAB_MEX_FILE -ansi -D_GNU_SOURCE -fexceptions -fPIC -fno-omit-frame-pointer -pthread -DMX_COMPAT_32 -O -DNDEBUG "ldl.c"
-> gcc-4.4 -c -I/home/iggy/Applications/Matlab_2012a/extern/include -I/home/iggy/Applications/Matlab_2012a/simulink/include -DMATLAB_MEX_FILE -ansi -D_GNU_SOURCE -fexceptions -fPIC -fno-omit-frame-pointer -pthread -DMX_COMPAT_32 -O -DNDEBUG "matrix_support.c"
-> gcc-4.4 -c -I/home/iggy/Applications/Matlab_2012a/extern/include -I/home/iggy/Applications/Matlab_2012a/simulink/include -DMATLAB_MEX_FILE -ansi -D_GNU_SOURCE -fexceptions -fPIC -fno-omit-frame-pointer -pthread -DMX_COMPAT_32 -O -DNDEBUG "solver.c"
-> gcc-4.4 -c -I/home/iggy/Applications/Matlab_2012a/extern/include -I/home/iggy/Applications/Matlab_2012a/simulink/include -DMATLAB_MEX_FILE -ansi -D_GNU_SOURCE -fexceptions -fPIC -fno-omit-frame-pointer -pthread -DMX_COMPAT_32 -O -DNDEBUG "util.c"
-> gcc-4.4 -O -pthread -shared -Wl,--version-script,/home/iggy/Applications/Matlab_2012a/extern/lib/glnxa64/mexFunction.map -Wl,--no-undefined -o "csolve.mexa64" csolve.o ldl.o matrix_support.o solver.o util.o -Wl,-rpath-link,/home/iggy/Applications/Matlab_2012a/bin/glnxa64 -L/usr/lib32 -L/home/iggy/Applications/Matlab_2012a/bin/glnxa64 -lmx -lmex -lmat -lm -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib32/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib32/libm.a when searching for -lm
/usr/bin/ld: cannot find -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib32/libpthread.so when searching for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib32/libpthread.a when searching for -lpthread
collect2: ld returned 1 exit status
mex: link of ' "csolve.mexa64"' failed.
Error using mex (line 206)
Unable to complete successfully.
Error in make_csolve (line 10)
mex -v csolve.c ldl.c matrix_support.c solver.c util.c
我将非常感谢任何建议（我使用的是64位运行MATLAB R2012a的Ubuntu 12.04）。
答案 0 :(得分：0)
/ use / lib32中的库是不兼容的，因为它们是错误的体系结构（32位而不是64位）。首先尝试再次运行mex -setup。我假设您使用的是64位MATLAB（请查看ver），因为当前设置中有glnxa64文件夹。
但是，真正的错误似乎如下：
/ home / iggy / Applications / Matlab_2012a / bin / mex：1：/home/iggy/Applications/Matlab_2012a/bin/util/oscheck.sh:/lib64/libc.so.6:not found
由于oscheck.sh无法找到/lib64/libc.so.6，您可能需要进入包管理并查找libc和libstdc ++，安装它们并重试。但首先尝试链接到另一个文件夹中的任何现有libc.so.6。 Ubuntu的典型位置如下。
64位Ubuntu：
sudo ln -s /lib/x86_64-linux-gnu/libc.so.6 /lib64/libc.so.6
32位Ubuntu：
sudo ln -s /lib/i386-linux-gnu/libc.so.6 /lib/libc.so.6