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I have installed gcc on a NSLU2. Lack of research or effort. When I look in common.h I find int initLog(int useSyslog, char *logfile,int debugSwitch); and looking in common.c (also in the same directory) I find int initLog(int useSyslog, char *logfile,int debugSwitch) { By continuing to use our site, you consent to ARM’s Privacy Policy.

If a symbol in that archive is needed to resolve an undefined symbol referred to by an object in an archive that appears later on the command line, the linker would Make all the statements true How much is "a ladleful"? Wrong Project Type The linker error regarding WinMain above can occur in a number of situations, particularly when you are using a C++ IDE such as CodeBlocks or Visual Studio. Adv Reply February 14th, 2011 #2 Arndt View Profile View Forum Posts Private Message Ubuntu Cappuccino Scuro Join Date May 2006 Beans 1,787 Re: compiling with gcc and "undefined reference

Wait, is it, really? It seems I am wrong since I get errors like: /media/sf_BitEagle_Projects/cbitcoin/test/testCBAddress.c:40: undefined reference to `CBNewByteArrayFromString' CBNewByteArrayFromString is found in the library. The answer is: it depends - the result can be either correct or a segmentation fault. share|improve this answer answered Jul 17 '15 at 21:56 unxnut 2,7982617 I suspected that might be an issue, thanks for pointing that out.

simplemain.o -lfunc_dep -lbar_dep ./libbar_dep.a(bar_dep.o): In function 'bar': bar_dep.c:(.text+0x17): undefined reference to 'frodo' collect2: ld returned 1 exit status $ gcc -L. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed When the linker encounters a new object file, it looks at: The symbols it exports: these are added to the list of exported symbols mentioned above. OpenSSL too: /media/sf_BitEagle_Projects/cbitcoin/dependencies/crypto/CBOpenSSLCrypto.c:37: undefined reference to `SHA1' How do I get the linking to work?

Compatible toolchains (like clang instead of gcc) apply too. You can possibly fix the problem in your Makefile so that the libraries are specified later. simplemain.o -lbar_dep -lfunc_dep ./libfunc_dep.a(func_dep.o): In function 'func': func_dep.c:(.text+0x14): undefined reference to 'bar' collect2: ld returned 1 exit status To solve this, consider that it's perfectly valid to list a library more Convert mp4 to mp3 Using Shell Script Why did my electrician put metal plates wherever the stud is drilled through?

Meaning of "oh freak" Radius of Convergence of Infinite Series more hot questions lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us Imagine that instead of simplefunc.c, the func symbol is provided thus: $ cat func_dep.c int bar(int); int func(int i) { return bar(i + 1); } $ cat bar_dep.c int func(int); int But when I try to compile the file that I really want to use "vclient.c" I get an error message /tmp/ccuuPxtN.o(.text+0x3bc): In function `main': vclient.c: undefined reference to `initLog' Now as e_atan2.o: 00000000 T atan2 e_asinf.o: 00000000 T asinf e_asin.o: 00000000 T asin To see the library path that your compiler uses and which libraries it loads by default you can invoke

In a long sum, how can we find how many terms are preceded by the plus (or minus) sign Word for someone who keeps a group in good shape? The C library I mentioned before makes a heavy use of this feature, by mostly splitting itself to an-object-per-function. We'll add a dependency to bar on another function from libfunc_dep.a, but one that lives in a different object: $ cat bar_dep.c int func(int); int frodo(int); int bar(int i) { if What kind of distribution is this?

Apparently this was due to inline function declarations. Return something else? Does a survey require an ethical approval? hello.o(.eh_frame+0x11): undefined reference to `__gxx_personality_v0' Source: An Introduction to GCC - for the GNU compilers gcc and g++ share|improve this answer edited Jun 26 at 10:48 Peter Mortensen 10.2k1369107 answered May

These IDEs offer you a number of project types such as “Windows Application” and “Console Application”. Don't show this message again Change Settings Privacy Policy Update ARM’s Privacy Policy has been updated. more hot questions question feed lang-c about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Is there a Korean word for 'Syllable Block'?

Accept and hide this message /support/docs/3136.asp Toggle navigation Eli Bendersky's website About Code Archives Library order in static linking July 09, 2013 at 05:56 Tags Articles , Linkers and loaders I'll As I wrote, I really would appreciate any help. If any symbol is in the undefined list, it's removed from there because it has now been found. If any symbols remain in the undefined list, the linker will throw an "undefined reference" error.

A function's manual page typically specifies what library, if any, must be specified to find the function. To perform the linkage, if you are using an IDE you can normally simply add the library to your project, if using the command line, once again please see my series Why would a password requirement prohibit a number in the last character? Conclusion The algorithm used by the linker to resolve symbols between objects and libraries is pretty simple.

As long as you keep it in mind, linker errors and related problems should be easy to understand. Can Communism become a stable economic strategy? It does the same for any libraries (.a and .lib files) you may be using. Now, suppose this is part of a larger project that consists of many object files and libraries, and somewhere within the project there's a library that contains this code: void memcpy(char*

For each one, it first looks at the symbols it exports. To see what symbols a given library defines you can run nm --defined-only on the library file.