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| # 07:36:23 | daggs1 | y_morin: hello |
| # 07:36:27 | daggs1 | whats up? |
| # 07:36:48 | y_morin | daggs1: hello! |
| # 07:37:01 | daggs1 | got a minute, I have a question |
| # 07:37:04 | daggs1 | ? |
| # 07:37:09 | y_morin | Fire! |
| # 07:38:10 | daggs1 | ok, when ct-ng builds the compiler, it needs dl.so which is part of libc right? |
| # 07:38:38 | y_morin | daggs1: dl.so or ld.so ? |
| # 07:38:43 | daggs1 | sec |
| # 07:39:05 | y_morin | ls.so is the dynamic linker. |
| # 07:39:08 | y_morin | ld.so... |
| # 07:39:42 | y_morin | ls.do is not needed at build time, only at runtime. |
| # 07:40:24 | daggs1 | ok, I'll try to rephrase, I have a lib that uses dlopen and dlerror, the compilation of the lib ends ok |
| # 07:41:04 | daggs1 | but when I try to use that lib, compilation fails with undefined reference to both of them in the lib |
| # 07:41:19 | daggs1 | so I assume that I cannot link it currectly, right? |
| # 07:41:23 | daggs1 | I don't even |
| # 07:41:48 | y_morin | Are you compiling a static lib? |
| # 07:42:02 | daggs1 | I think so |
| # 07:43:40 | y_morin | OK, dlopen and co are defined in libdl.so, you need to explictly link against it. Add -ldl to your linker command line |
| # 07:44:07 | y_morin | That is because static libraries do not have 'metadata' that state their depdencies. |
| # 07:44:58 | y_morin | For shared libs, the depdencies are listed in an ELF section, and are recognisable with the 'NEEDED' flag: readelf -d mylib.so | grep NEEDED |
| # 07:45:07 | daggs1 | in the lib or in the product that uses this lib? |
| # 07:45:57 | y_morin | The program that uses your lib. Something like: ld -lyourlib -ldl |
| # 07:46:49 | daggs1 | sec |
| # 07:47:28 | daggs1 | sounds logical, I'll try soon and report |
| # 08:03:32 | daggs1 | y_morin: I do add -ldl when I link but it still doesn't work\ |
| # 08:05:57 | y_morin | daggs1: without more info, I don't know what's going on... :-/ |
| # 08:06:19 | daggs1 | what I can do to get more info? |
| # 08:06:38 | daggs1 | ldd on the file in question will work? |
| # 08:08:41 | y_morin | daggs1: can you provide a dump of the link error ? |
| # 08:09:33 | daggs1 | y_morin: not sure I follow, can you elaborate? |
| # 08:10:20 | y_morin | daggs1: copy-paste the error in the console. Pastebin it (http://pastebin.com/) |
| # 08:13:32 | daggs1 | sec |
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