gcc linker error undefined reference Vinegar Bend Alabama

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It's way nicer to just carry libc.a around. As long as you keep it in mind, linker errors and related problems should be easy to understand. Thanks Last edited on Jul 9, 2014 at 10:36pm UTC Jul 17, 2014 at 1:39pm UTC StarAD (3) I have found the problem. 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

Rate this:Like this:Like Loading... What would be the atomic no. B.R Jul 7, 2008 at 10:41am UTC pardis (5) hi again I wanted to link the libclucene.so to the project as you recommended but Unfortunately, When i add this library in So to me everything looks OK!

Join them; it only takes a minute: Sign up Linker Error C++ “undefined reference ” [duplicate] up vote 9 down vote favorite 2 Possible Duplicate: What is an undefined reference/unresolved external As I wrote, I really would appreciate any help. It's better to make it as fast as possible for well-behaved programs (that got their linking order right), and provide special options like groups for the difficult circular dependency cases. Even if it exports symbols that may be needed by some later library.

In case you don't know 1
namespace lucene { namespace analysis { namespace standard{ class StandardAnalyzer; } } } is the forward declaration. And finally it writes the executable file out to disk. The reason for this is simple: even without us explicitly asking for it, gcc asks the linker to link the C library as well. Response to answers there is no .a library file, just .h and .c in the library, so -l isn't appropriate my understanding of a library file is that it is just

When I generate the shared library I dont have any problem, but the nightmare begins when I try to compile the executable. But obviously I am missing something fundamental. Edit: Hash.cpp file #include #include #include "Hash.h" using namespace std; void Hash::insert(int key, char value){ *hashFN[key]->addFront(value); cout << "Success!" << endl; } Trying to compile via terminal now with: No Definition Probably the most common reason for unresolved reference errors is that you simply have not defined the thing you are referencing.

I really appreciate any and all help because I am so out of my depth. more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science It depends on the order in which the objects and libraries in the project were fed to the linker. Using this to build a hash table with set size.

Linking is already a critical part of the compilation time of large systems, since it looks at the whole program and requires quite a bit of memory. Object files are always taken into the link. c++ reference undefined share|improve this question edited Aug 15 '14 at 14:37 user263210 3212 asked Jan 28 '13 at 7:52 Fox 102118 marked as duplicate by Andrey, BЈовић, EdChum, Shoban, Sindre To understand why linking order matters, it's first instructional to understand how the linker works with respect to linking libraries and objects together.

Would you expect it to still return 5? If you haven't defined Hash class member functions, you need to do that first, then compile Hash.cpp and main.cpp then link them properly. These Aren't Roasted! No Library To understand this issue, remember that a header file (.h) is not a library.

Each object code file knows nothing about the others, so if you call a function from one object file that exists in another, the compiler cannot provide the address of the No new replies allowed. I have installed Ubuntu 14 and I have create Makefiles to compile those projects. Why microcontroller takes many clock cycles to start up with PLL clock source?

How to deal with sewage on a map with no water anywhere Create a wire coil more hot questions question feed lang-c about us tour help blog chat data legal privacy I was getting undefined reference to 'pow' until I moved -lm to the very end of my option string. –IMSoP Nov 19 '14 at 16:41 | show 1 more comment up Otherwise, read on. 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

Back to the original example Let's go back to the example this article started with. How can I make LaTeX break the word at the end of line more beautiful? For each one, it first looks at the symbols it exports. more hot questions lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science Other

I tried with including the headers folder both before and after the .o file. Are there any rules or guidelines about designing a flag? 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 Best Regards, Jul 7, 2008 at 10:59am UTC bnbertha (401) you should miss out the 'lib' part of the library name and the extension, the command line should read: g++ -L/usr/lib

Best Regards Jul 4, 2008 at 2:15pm UTC Jeff HS (71) You are probably not linking to those libraries libs (.so or .a) look at the documentation and see what libs Browse other questions tagged linux gcc build linker or ask your own question. So my thought is it might be the order in which I include the library files, but i'm not sure what is the correct way to order them. What do I do when two squares are equally valid?

Ubuntu Logo, Ubuntu and Canonical Canonical Ltd. How to show hidden files in Nautilus 3.20.3 Ubuntu 16.10? For example, when you create an executable and forget to include the file with the main function, you'll get something like: /usr/lib/x86_64-linux-gnu/crt1.o: In function '_start': (.text+0x20): undefined reference to 'main' collect2: When the linker looks into the library it sees simplefunc.o that exports func.

Assuming the memcpy here was packed into the libstray_memcpy.a library: $ gcc -L. Join Date Jul 2007 Location The Bavarian Alps Beans 129 DistroKubuntu 7.10 Gutsy Gibbon compiling with gcc and "undefined reference to xxx" I have run up against a wall. The linker would look for the prototype's implementation in the .o file produced by compiling the library Does your build process compile the library .c file? For example, in this C code: int imported(int); static int internal(int x) { return x * 2; } int exported(int x) { return imported(x) * internal(x); } The names of the

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* Please review our Privacy Policy to learn more about our collection, use and transfers of your data. Karger's Algorithm question Developing web applications for long lifespan (20+ years) In what atmospheric densities or pressures have aerobrakings been performed? I'll try this when I'm next able to... –Matthew Mitchell Sep 5 '12 at 0:12 Yes, worked perfectly thank you. –Matthew Mitchell Sep 5 '12 at 20:23 3

asked 4 years ago viewed 14222 times active 4 years ago Related 4Undefined reference error _dl_stack_flags with gcc and pthreads2Problem with /usr/bin/ld: main.o: undefined reference to symbol '[email protected]@GLIBC_2.2.5'1Why am I getting Comments Please enable JavaScript to view the comments powered by Disqus. If you want to write a program that has a int main() function in it, always make sure that you choose “Console Application”, otherwise the IDE may configure the linker to If those answers do not fully address your question, please ask a new question. 1 That's not a compiler error. –chris Jan 28 '13 at 7:56 1 -1 for

I am a newbie. The compiler needs a class definition. up vote 4 down vote favorite 1 My compilation process throws around errors like ..undefined reference to `BN_cmp' although I include and run gcc -lssl -lcrypto test.c -o test can In your source file myapp.c you include the header, either directly or including another header that includes it.