http://forums.leaflabs.com/topic.php?id=1013 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:21:52 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=1013#post-6171 Thu, 01 Sep 2011 08:51:19 +0000 mbolivar 6171@http://forums.leaflabs.com/ <p>see this thread for information on multiple source files:</p> <p><a href="http://forums.leaflabs.com/topic.php?id=1008" rel="nofollow">http://forums.leaflabs.com/topic.php?id=1008</a></p> <p>previous post by edisoner deleted for spam signature.</p> <p>since this was edisoner's first post, i've deleted the account as well. if you were a real person, come back, but don't post spam. </p> http://forums.leaflabs.com/topic.php?id=1013#post-6159 Wed, 31 Aug 2011 15:14:51 +0000 crenn 6159@http://forums.leaflabs.com/ <p>It's possible to change makefile to allow compilation. When writing libraries, I also have to include a rules.mk file in the same directory as the library. </p> http://forums.leaflabs.com/topic.php?id=1013#post-6158 Wed, 31 Aug 2011 14:33:13 +0000 frpr 6158@http://forums.leaflabs.com/ <p>Hello,<br /> I would like to split one big file "main.cpp" into more files. But I get compile-time error:<br /> undefined reference to ...</p> <p>Situation before:<br /> I have PC, Ubuntu and the unix-toolchain. I use Geany as the text editor.<br /> It works well thanks your cookery-book (<a href="http://leaflabs.com/docs/unix-toolchain.html)" rel="nofollow">http://leaflabs.com/docs/unix-toolchain.html)</a>.<br /> Normally I make changes in "main.cpp" (modified blinky project) then "make flash" and then "make install".<br /> Everything works.</p> <p>Situation now:<br /> I make two new files: "my.h" and "my.cpp" and write some C code. Inside "main.cpp" I call a function declared in "my.h" and defined in "my.cpp".<br /> The files are saved at some location as "main.cpp" and as "Makefile" (~/_arm32/).<br /> But I get compile-time errors:<br /> main.cpp:22: undefined reference to `my_hex'<br /> main.cpp:26: undefined reference to `my_buff'<br /> It seems that the compiler doesn't see my two new files. Do I need modify "Makefile" or is there another problem ? </p> <p>file "my.h" looks like<br /> /*<br /> file: my.h<br /> */<br /> #ifndef _MY_H<br /> #define _MY_H</p> <p>#ifdef __cplusplus<br /> extern "C" {<br /> #endif</p> <p>#include "libmaple_types.h"</p> <p>/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */</p> <p>extern void my_hex(void *dest, uint32 nr); // some my func</p> <p>extern unsigned char my_buff[20]; // some my variable </p> <p>/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */<br /> #ifdef __cplusplus<br /> }<br /> #endif</p> <p>#endif //_MY_H </p>