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Tarik Billa

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unix-ar

What does the “rcs” option in ar do?

December 24, 2023 by Tarik

Reading the manual page (for ar) is a good start: c Create the archive. The specified archive is always created if it did not exist, when you request an update. But a warning is issued unless you specify in advance that you expect to create it, by using this modifier. r Insert the files member… … Read more

Categories c Tags c++, gcc, static-libraries, static-linking, unix-ar Leave a comment

what is the difference between ranlib, ar, and ld for making libraries

July 29, 2023 by Tarik

ar In Linux, ar is the GNU general purpose archiver. (There are non-GNU variants of ar in other Unix-like OSes). With the option c ar c… archive-name file… It creates an archive containing copies of file…. The archive-name conventionally but not necessarily has the extension .a (for archive). Each file… may be any kind of … Read more

Categories linker Tags ld, linker, unix-ar Leave a comment

How to merge two “ar” static libraries into one?

December 23, 2022 by Tarik

There are at least three ways to do this natively. The first and most portable way is to use libtool. After having built the other libraries also with libtool, you can combine them just by adding the .la libs to an automake libaz_la_LIBADD variable, or directly from a Makefile with something like: libtool –mode=link cc … Read more

Categories linux Tags linux, static-libraries, unix-ar Leave a comment

Linking static libraries to other static libraries

November 14, 2022 by Tarik

Static libraries do not link with other static libraries. The only way to do this is to use your librarian/archiver tool (for example ar on Linux) to create a single new static library by concatenating the multiple libraries. Edit: In response to your update, the only way I know to select only the symbols that … Read more

Categories c++ Tags .a, c++, linker, unix-ar Leave a comment

Tarik Billa

Software Engineer
tarikbilla@gmail.com
+8801884414000
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