Re: Linking to Dynamic Library on Mac OS X
On Friday, 15 May 2015 at 19:49:30 UTC, John Colvin wrote: On Friday, 15 May 2015 at 19:39:53 UTC, TJB wrote: Off the top of my head: does adding -L-L$(pwd) help? This is what I get: $ dmd main.d -L-L$(pwd) -lhello Error: unrecognized switch '-lhello' Sorry if this is completely elementary and I am being quite dumb. Thanks, TJB should be $ dmd main.d -L-L$(pwd) -L-lhello This works perfectly. A big thanks!
Re: Linking to Dynamic Library on Mac OS X
On 2015-05-15 21:49, John Colvin wrote: Note that you may also find you need to help OS X find the dylib when running the program, either by moving it to one of the system locations or using DYLD_LIBRARY_PATH or DYLD_FALLBACK_LIBRARY_PATH That should not be necessary. -- /Jacob Carlborg
Re: Linking to Dynamic Library on Mac OS X
On Friday, 15 May 2015 at 03:33:47 UTC, TJB wrote: I have built a toy dynamic shared library on Mac OS X (in C), and I have verified that it works from C. Now I would like to call it from D. So I have created the following interface file: $ cat hello.di extern (C): void printHelloWorld(); which I try to compile and run. But I get the following error: $ dmd main.d -L-lhello ld: library not found for -lhello clang: error: linker command failed with exit code 1 (use -v to see invocation) --- errorlevel 1 I gather that mac os x doesn't know where to find libhello.dylib (it is in the current directory). So how do I pass that information? Thanks! TJB Off the top of my head: does adding -L-L$(pwd) help?
Re: Linking to Dynamic Library on Mac OS X
Off the top of my head: does adding -L-L$(pwd) help? This is what I get: $ dmd main.d -L-L$(pwd) -lhello Error: unrecognized switch '-lhello' Sorry if this is completely elementary and I am being quite dumb. Thanks, TJB
Re: Linking to Dynamic Library on Mac OS X
On Friday, 15 May 2015 at 19:39:53 UTC, TJB wrote: Off the top of my head: does adding -L-L$(pwd) help? This is what I get: $ dmd main.d -L-L$(pwd) -lhello Error: unrecognized switch '-lhello' Sorry if this is completely elementary and I am being quite dumb. Thanks, TJB should be $ dmd main.d -L-L$(pwd) -L-lhello The -L means send the following argument to the linker. Note that you may also find you need to help OS X find the dylib when running the program, either by moving it to one of the system locations or using DYLD_LIBRARY_PATH or DYLD_FALLBACK_LIBRARY_PATH (see http://stackoverflow.com/questions/3146274/is-it-ok-to-use-dyld-library-path-on-mac-os-x-and-whats-the-dynamic-library-s). However, I think the runtime linker looks in the present directory by default, so you might get away with it.
