MathLink in Vista
- To: mathgroup at smc.vnet.net
- Subject: [mg109976] MathLink in Vista
- From: William Horowitz <horowitz at physics.ohio-state.edu>
- Date: Thu, 27 May 2010 06:43:55 -0400 (EDT)
- Organization: Ohio State University
Dear All, I've been picking at this problem for the last two days, and I'm pretty much at my wit's end. I'm looking to receive data from canned FORTRAN software from within Mathematica. My sense is that this will be most easily achieved by compiling the necessary code in Cygwin, which I have running on my machine along with 64-bit Vista and Mathematica 7.0. As a first baby step I tried to compile and Install addtwo, but I seem to be having trouble with properly linking the .o objects together properly (the precompiled version of addtwo Installs and works just fine). I have placed mathlink.h, ml64i2.dll, ml64i3.dll, ml64i3m.lib, mlmodule64.dll, mlshm64.mlp, mltcp64.mlp, mltcpip64.mlp, mprep.exe, addtwo.c, and addtwo.tm all in one folder. I have also placed the dll's and mlp's in Windows/System32. Essentially following the steps laid out in the makefile posted in http://forums.wolfram.com/mathgroup/archive/2007/Jun/msg01337.html I typed in the commands ./mprep addtwo.tm -o addtwotm.c gcc -c -mno-cygwin -mwin32 -I./ addtwotm.c gcc -c -mno-cygwin -mwin32 -I./ addtwo.c gcc -I./ addtwotm.o addtwo.o -L./ -lML64i3m -mwindows -o addtwo.exe Everything seems fine until I execute the last line. I then get a large number of undefined references spit back at me that finishes with a "collect2: ld returned 1 exit status." The first few lines of undefined reference comments are: addtwotm.o:addtwotm.c:(.text+0x2ef): undefined reference to `_MLGetInteger@8' addtwotm.o:addtwotm.c:(.text+0x30d): undefined reference to `_MLGetInteger@8' addtwotm.o:addtwotm.c:(.text+0x321): undefined reference to `_MLNewPacket@4' addtwotm.o:addtwotm.c:(.text+0x363): undefined reference to `_MLPutFunction@12' I then gave up on trying to use Cygwin and tried to follow the MathLinkDevelopmentInC.pdf guide step by step. However, I seemed to run into the same problem. I downloaded Visual Studio C++ 2010 Express. I placed mprep.exe in Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin, mathlink.h in \VC\include, and the four .lib's mentioned above in \VC\lib. Just for the sake of overkill I also placed all these files together with addtwo.c and addtwo.tm in a single folder. After opening up the Visual Studio command prompt and navigating to the correct folder, I typed in the commands as laid out in the guide: SET CL=/nologo /c /DWIN32 /D_WINDOWS /W3 /O2 /DNDEBUG SET LINK=/NOLOGO /SUBSYSTEM:windows /INCREMENTAL:no /PDB:NONE kernel32.lib user32.lin gdi32.lib MPREP addtwo.tm -o addtwotm.c CL addtwo.c addtwotm.c (this generated the following output: addtwo.c addtwotm.c Generating Code...) LINK addtwo.obj addtwotm.obj ml64i3m.lib /OUT:addtwo.exe Executing that final command yielded a string of errors: addtwo.obj : error LNK2019: unresolved external symbol _MLScanString@16 refereced in function _WinMain@16 addtwotm.obj : error LNK2019: unresolved external symbol _MLPutInteger@8 refereced in function __tr0 addtwotm.obj : error LNK2019: unresolved external symbol _MLNewPacket@4 refereced in function __tr0 ... addtwo.exe : fatal error LNK1120: 27 unresolved externals Of possible note is that I have Mathematica 5.2 also installed on my machine. I *believe* I installed 5.2 first, but don't remember exactly. I have made sure that the files mentioned above in Windows/System32 are all from 7.0. Any help or advice that the community can give would be enormously appreciated. Thanks in advance! Sincerely, Will ------------------------- William Horowitz Postdoctoral Researcher Department of Physics The Ohio State University 191 West Woodruff Avenue Columbus, OH 43210, USA -------------------------