On Fri, 16 Jan 2015 10:19:38 -0700, Matthew Flatt wrote: > Along the lines of these suggestions, you could try using an absolute > path to the DLL. > > If an absolute path works, then it's probably an issue of the search > path for DLLs, and using `define-runtime-path` might be the best > approach. > > If an absolute path doesn't work, then it might be a mismatch between > Racket and the DLL (32-bit versus 64-bit builds) or a missing DLL, as > others have suggested. > > At Fri, 16 Jan 2015 11:01:31 -0500, Michael Wilber wrote: >> Does this work if you place the .DLL in the same directory as the >> Racket executable? >> >> What if it's placed in your System32 folder? >> >> If you need to put the library in a nonstandard path (I think putting >> the .dll in the same folder as the .rkt script is nonstandard), try >> registering the DLL. See >> http://stackoverflow.com/questions/4897685/how-do-i-register-a-dll- file-on-wind >> ows-7-64-bit >> >> Lehi Toskin <l...@tosk.in> writes: >> > On Thu, 15 Jan 2015 18:55:41 -0700, Matthew Flatt wrote: >> > >> >> At Thu, 15 Jan 2015 22:10:35 +0000 (UTC), Lehi Toskin wrote: >> >>> I am attempting to use this C library I've written with the Racket >> >>> FFI, >> >>> but (ffi-lib "mylib") reports "The specified module could not be >> >>> found.; >> >>> errno=126". This only happens on Windows. On Linux the library gets >> >>> loaded properly and I can use it fine. What could be the problem? >> >> >> >> Can you say more about where "mylib.dll" is located in your Windows >> >> installation --- and maybe also where it's located on Linux, for >> >> comparison? >> >> >> >> >> > I actually have the library in the same directory as the script for >> > both platforms. I've tried "mylib", "mylib.dll" and even permutations >> > of "path/ >> > to/lib/directory/mylib". >> > ____________________ >> > Racket Users list: http://lists.racket-lang.org/users >> ____________________ >> Racket Users list: http://lists.racket-lang.org/users > ____________________ > Racket Users list: http://lists.racket-lang.org/users
I have checked and double checked the 32/64-bitness of both the library and the Racket installation and they are definitely the same... It appears that specific error I am getting is caused by the fact that "mylib.dll" depends on other DLL's to compile that it wasn't locating when the racket script was being run and when I moved it to where the other DLL's were, it stopped giving me that error. Good news is it's giving me a new error! Yay! "%1 is not a valid Win32 application.; errno=193"
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