Libssh static linking. – Florian From: Simone <simoneazzalin_at_adtelecom.

Libssh static linking The math library is not a thin you can link against statically, it happens we have a libm. Run the following Vcpkg command to install the port. Copy. You should start by reading The Tutorial, then reading the documentation of the interesting functions as you go Subject: RE: Building library for Windows; From: Servesh Singh <ssingh@xxxxxxxxxxxx>; Reply-to: libssh@xxxxxxxxxx; Date: Thu, 29 Sep 2016 18:50:55 +0000; To: "libssh@xxxxxxxxxx" <libssh@xxxxxxxxxx> References: include libssh into a Qt project: Giovanni Venturi <giovanni. The vendored feature causes a static version of libssh to be compiled and linked into your program. asc Your output indicates that you are missing symbols during the linking. 4 => /usr/lib64/libssh. I forgot to say that this was a gcc command error, linked libs go after c src. You'll get linker errors because ld already visited libcrypto when it visits libssl (libssl needs stuff from libcrypto). Link If libssh is statically linked, it is necessary to explicitly call ssh_init() before calling any other provided API, and it is necessary to explicitly call ssh_finalize() to free the allocated resources before exiting. The downside of course would be that you could only use those NSS modules and iconv conversions that were linked in Subject: [PATCH] tests: introduce pkd_hello (resend: rebased); From: Jon Simons <jon@xxxxxxxxxxxxx>; Reply-to: libssh@xxxxxxxxxx; Date: Fri, 10 Oct 2014 13:48:11 I have the following piece of code which I am trying to build statically, so I end up with a single executable. Mihai Attachment: signature. Copying the ssh. Static linking, means that you can know the code will run in very limited environments (early in the boot process, or in rescue mode). 6. obj):(. Static linking. Linking is always performed with target_link_libraries. In which case you might be able to fix that with an appropriate LD_LIBRARY_PATH (but then, that may break the installed ssh). libssh2_config. 9. o and I'm trying to link these files. I want to run this on a different system, with different version of glibc, apt install libcurl4-openssl-dev libssh-dev zlib1g-dev. Setting > this in a header file is normally a bad idea cause then only static linking > is possible. a needs a function/symbol which is inside libbrotlienc-static. vcpkg install libssh. This symbol is then provided by a small static library with the extension . Hot Network Questions static library for libssh causes unresolved symbols in vc10. So -lssl -lcrypto works, but -lcrypto -lssl won't work. Determines whether to build a libssh2 shared library (. cryptomilk. I suggest to read the sections about linking. libssh installation provides libssh-config. obj files. exe --static --libs libssh2 Statically linked libraries are linked in at compile time. However, if I link this . h> # compilation; static-linking; libssh; 3CxEZiVlQ. Use -l: instead of -l. 4; optional: - libz >= 1. c #define LIBSSH_STATIC 1 #include <libssh/libssh. If no system libssh is detected at build time, or that system library is too old, then the vendored libssh implementation will be used automatically. However, it is sometimes useful to freeze the version of libstdc++ used by the program without going all the way to a fully static link. a -lssl -lrt The -static flag was giving me a lot of missing libraries. If the library supports none mechanism for search it, The "libssh-dev" package is completely unrelated and unnecessary since it's a different library not used by libcurl nor libssh2. exe and I saw there the file 'libssh. a file. so in libssh for linux but not for window. On 9/24/20 4:32 PM, Simone wrote: > Hello again, > > I have the same problem after compiling for x86_64. Default: My project. I get many undefined reference errors like: undefined reference to sftp_attributes_free' (not sure how ssh related!) = note: some extern` functions couldn't be found; some native libraries may need to be installed or have their path specified = note: use the -l flag to specify native libraries libssh is a Free Software / Open Source project. Global Functions LIBSSH_API int ssh_threads_set_callbacks (struct ssh_threads_callbacks_struct * cb) Set the thread callbacks structure. ) follow the errors and install the dev packages and include the libraries with the "-lname" parameter to my gcc line, but this is getting out of hand. >> >> Regards, >> >> >> -- andreas > I prefer use dynamic library. 2. Why do I clearly refer to the static library in xcode, but the program tries to load the dynamic library during execution? I am testing openssl under macos. > > Try create a static libcurl library with SFTP support. How do I fix win32 part? Giovanni Follow-Ups: Re: include libssh into a Qt project: Oleksandr Shneyder <oleksandr. lib file?) yes, it is. Your output indicates that you are missing symbols during the linking. For your problem now, ssh_finalize is also defined in libssh. a -lssh > > I also defined #define LIBSSH_STATIC 1 on the source code > > However it is still linking the dynamic library > ldd ssh > libssh Biswa96 changed the title Static linking with libssh and libstr Static linking with libssh and libsrt Apr 18, 2022. The problem you face is probably that "make install" with libssh2 installs the library /usr/local/lib by default and you have not edited /etc/ld. a/libssh. Threading with libssh. If ssh_init() is called explicitly, then I'm writing a C program that uses libssh. h> #include & c; compiler-errors; static-linking; libssh; NoobieG. However, if you want to link against the static > library you have to define LIBSSH_STATIC. so) and embed liba. EDIT: The authors also have an alias, so target_link_libraries(project ssh) is The dylib that is produced shows as x86_64 and when trying to use the static library . So before you can link it to any of your own projects, you need to build libssh first. a is definitely present in /usr/local/lib. a to link with libXYZ. a files which are needed for static linking. Improve this answer. , Balàzs Vakulya; How use ssh_select after ­fail in ssh_bind_accept?, samail <Possible follow-ups> How use ssh_select after ­fail in ssh_bind_accept?, samail; Libssh and port forwarding, Jonathan Douglas. Next message: Dan Fandrich: "Re: static linking problem" Previous message: Dan Fandrich: "Re: static linking problem" In reply to: Dan Fandrich: "Re: static linking problem" Next in thread: Dan Fandrich: "Re: static linking problem" Reply: Dan Fandrich: "Re: static linking problem" OS and CMake prehistory I'm trying to installlibssh on Debian GNU/Linux 9. It tells me he cannot find -lssh . I think (but am not 100 % positive) that libssh provides a libssh_static. Following is my simple code copied from libssh tutorial: //sshtest. txt>) so that you can get it to search for the dependencies and set the link lines for you. I have built the Boost libraries using these directions. #define LIBSSH_STATIC 1 #include <libssh/libssh. You either heed the warning and ship your app with those dynamic libraries (if they're needed), or you can use another libc that's better [Buildroot] [git commit] libssh2: fix static linking scenarios involving mbedtls This crate provides ergonomic bindings to the functions provided by libssh, a library that provides an implementation of the SSH 2 protocol. The -l options should come at the end of the compiler driver (GCC) command. a; A static library is an archive . so: file not recognized. BUILD_SHARED_LIBS=OFF. You signed out in another tab or window. And order of the libraries matters too because ld is a single pass linker. LINK. It is distinct from the `ssh2` rust crate which uses libssh2, which is an unrelated project that implements similar functionality! I was trying to link my program with libssh static library. koretic@xxxxxxxxxx> Reply-to: libssh@xxxxxxxxxx; Date: Tue I'm using the following command > > g++ -o ssh ssh. His work for the program are implemented in the following MRs – #493, #500, #527 Future Depending on your configuration there may be other libraries you also need to be linking in >>> >>> -----Original Message----- >>> From: Thomas Käfer [mailto:kaefert@xxxxxxxxx] >>> Sent: Thursday, September 21, 2017 1:25 PM >>> To: libssh@xxxxxxxxxx >>> Subject: Re: static cross-compiling >>> >>> I'm sorry, I forgot to mention that I did target_link_libraries(SSH-Manager PRIVATE -L${LIBSSH_LIBRARY} -lssh) # it should look like this target_link_libraries(SSH-Manager PRIVATE ssh) #OR ${LIBSSH_LIBRARIES} Also bare in mind that the name of the package might be case-sensitive if you are on Linux. If you compile your program with these headers, you will only link to the C version of libssh which will be kept ABI compatible. You are right -L is for directories. CMake is the build system used for libssh. a, you should either do a > LIBS += lib/libssh_static. – Florian From: Simone <simoneazzalin_at_adtelecom. You know that if you link your code statically with libssh you have to release *your* work under LGPL too. – Eelke. The initial release provided only dynamic link libraries, When a library is scanned by the linker, only the functions for which there are already undefined references are linked. If you’re using gcc, you must use the commandline. My static library, lets call it X, compiles fine. I > think you know what happens when you link your code with libssh statically. Why cant mingw find libraries that gcc can find? Hot Network Questions Why didn't Galileo take pictures as it descended into Jupiter's clouds, really? entertaining programmes or entertainment programmes Ideally you'd make your own CMakeLists. a -lssh I also defined #define LIBSSH_STATIC 1 on the source code If libssh is statically linked, it is necessary to explicitly call ssh_init() before calling any other provided API, and it is necessary to explicitly call ssh_finalize() to free the allocated resources before exiting. If the static glibc library had linked in NSS and iconv statically, it wouldn't have been necessary. gfortran, OpenMP and static linking Bernhard Reutner-Fischer rep. a are written out, as opposed to -lXYZ which would auto-expand to libXYZ. a and libsrt. One thing which might happen is that the ssh installed in your system uses another version of the library which doesn't contain that symbol, and your program finds that one on execution. pkg-config. You switched accounts on another tab or window. Can be ON or OFF. This is because the command "pkg-config --cflags --libs libssh" returns the package configuration of libssh on your host machine. >>> Dan Hi Dan, sorry but that doesn't work. 472; asked Sep 26, 2022 at 16:24. I added this flag and now looks like it's looking for static library but doesn't link it well. com Sun Apr 4 10:46:05 GMT 2021. find_package(LIBSSH REQUIRED) target_link_libraries(deployExe PRIVATE ssh) References: static cross-compiling: Thomas Käfer <kaefert@xxxxxxxxx> Re: static cross-compiling: Thomas Käfer <kaefert@xxxxxxxxx> RE: static cross-compiling CMake doesn't know if OpenSSL is about to be linked statically. In SSH, the two concepts are linked. a >And don't forget to add any libraries given by "pkg-config libssh2 --static". a) Related. dll on windows. Static linking can make binaries easier to distribute to diverse user environments (at the cost of sending a larger and more resource-hungry program). so) and I want to compile a shared library in my project B (let's call it libb. h> This supposed to fix static linking on windows. We created a small howto how to link libssh against your application, read The Linking HowTo. And try to add an GLOBAL to your add_library(libssh STATIC IMPORTED) call. See this answer. libssh can run on top of either libcrypto, mbedtls or libgcrypt (deprecated) general-purpose cryptographic libraries. h not created when installing libssh2. Static linking bakes the library bit into your executable. This program must work independent of windows environment. I am using Code Blocks with MinGW and am trying to get a simple program to compile with static linking. a must be mentioned before libbrotlidec-static. . a into lib directory (I copied also the other libs) but it doesn't work. a is you system, because CMake just puts an -lssh?Check with make verbose output what your command line looks like. How can we make sure that no other project is using that function from libssh or libsrt? All reactions. Fixed access violation in ssh_init() (static linking) Fixed ssh_channel_close() handling; You may also like. Share. so, so you need to fix the linking problem as well. Correct usage of find_package() results is linking with that target:. es> Date: Fri, 25 Sep 2020 17:00:17 +0200. 37k; answered Sep 26, 2022 at 16:36. What do I pass in ssh_threads_set_callbacks() for windows? Is there or linking libssh_threads . You can change that with the --disable-static or --disable-shared options to configure. How to properly include libssh in C. static library for libssh causes unresolved symbols in vc10. 0 How to get thread-safe libssh2 to link under Hello! I would like to write a program that I can cross-compile for Android and OpenWRT devices, that uses libssh to first talk to ssh servers and in a later development-stage to each other. Also, I have a binary in Hello, I am currently trying to create a c program that shall ssh into a couple of remote server and execute commands. Dynamically linked libraries are loaded at run time. I want to statically link the libraries listed below: set_target_properties(exec PROPERTIES LINK_SEARCH_START_STATIC 1) set_target_properties(exec PROPERTIES LINK_SEARCH_END_STATIC 1) set( Why not ? :) I've began to work on my own implementation of the ssh protocol because i didn't like the currently public ones. a) 0. 1. Note that the libssh-rs bindings make use of a couple of new interfaces that have not made it into a released version of libssh at the New to libssh, Prasad Nallani; Libssh static linking. You will need to obtain or compile up a copy of libssh specifically for the target environment (ARM). Link to comment Share on other sites Subject: Re: Library path, and related stuff; From: "Ronald F. Another option would be to try static linking (at the This is the online reference for developing with the libssh library. config. The libssh project has nothing to do with "libssh2", which is a completely different and independent project. 1 vote. -L specifies a directory in which to look for files, so unless you have a lib/libssh_static. :(– Hi everybody, my goal ist to create an environment for cross-compiling static libssh-projects. libssh:x86-windows-static zlib:x86-windows-static openssh:x86-windows-static I have manually linked the following include path, in the C/C++ section of project properties on the General tab under Additional include directories. If you do want a fully-static link, then you should drop all the -Wl, flags you currently have, and also note that your binary will likely not run (at least not correctly) on any system other than the one it was linked on. 4. My libssh dylib files are at SSHLIB = -L/usr Hello, Could you please try to call ssh_init() before calling any other function from libssh (and ssh_finalize() at the end)? When using dynamic linking this will be a no-op. However, if you want to link against the static library you have to define LIBSSH_STATIC. o from your host environment instead of your target environment. The dinamic linking is work perfectly, but when i use the static version, the programs run, but always return the Make sure you understand what this means to your codebase if you want to distribute binaries and link statically against LGPL code! On UNIX systems linking against the static version of If both libssh. When you include libssh headers, you need to set a #define to indicate that you're expecting to link statically. cpp /usr/lib64/libssh. 04 I have all necessary libs available, but at the end there are a lot of linker errors. libssh: --with-libssh; wolfSSH: --with-wolfssh; The major problem I'm currently facing is that the application is linked dynamically with glibc and (ie, zlib, libssh, openssl, yada yada) as shared libraries with the package. Hello, I have built libssh2 and its dependencies for aarch64, in such a way to link these libs as static into the final executable. From: Simone <simoneazzalin_at_adtelecom. cmake config script, which just defines ssh target. So I decided to use the example code in the crystal language reference below “Fully Static Linking” by using an alpine docker container ("The recommended way to build a statically ). However, if you want to link against the static >> library you have to define LIBSSH_STATIC. Reload to refresh your session. exe by poitning it to the src sirectory of libssh downloaded, configured it and generated the build. This is the online reference for developing with the libssh library. If the library can be found with pkg-config command-line utility, then use pkg_check_modules. 2 We try to keep libssh C version as much as possible binary compatible between releases, while this would be hard for C++. EXE /dll /export:my_exported_function Get the linker to pull in a module definition (. @VTT So I downloaded libssh source code and installed zlib, openssl and cmake. 5. venturi@xxxxxxxxx> Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in libssh-sys by you, as defined in the Apache-2. a of object . By default, configure setups the build files so that the following 'make' command creates both shared and static versions of libcurl. I'm running into trouble linking with the libssh2 library. It is mentioned in Chapter 8 of the tutorial and in the API documentation. Tutorial. This is a bugfix release for libssh and maybe a christmas present for some of you 🙂 This mostly fixes some bugs or regressions introduced by the packet filter. It seems to work just fine. es> Date: Thu, 24 Sep 2020 15:10:07 +0200. In the source tree, which you have downloaded, you will find a file named INSTALL. Previous message (by thread): gfortran, OpenMP and static linking Next message (by thread): gfortran, OpenMP and static linking Messages sorted by: Harald, On Sat, 03 Apr 2021 23:24:52 +0200 On the invocation of the linker, use the /export:symbol_to_export option to LINK. a static linking problem" Contemporary messages sorted : [ by date ] [ by thread ] [ by subject ] [ by author ] [ by messages with attachments ] Hello, Could you please try to call ssh_init() before calling any other function from libssh (and ssh_finalize() at the end)? When using dynamic linking this will be a no-op. Using Cmake to build ssh. Multi-arch docker image with ffmpeg/ffprobe binaries built as hardened static PIE binaries with no external dependencies - wader/static-ffmpeg Plugins always call for dynamic linking. Your Answer Reminder: Answers generated by artificial intelligence tools are not You can't choose to link parts of it statically and not others because each part depends on the other to form a complete implementation. Hi Dan, sorry but that doesn't work. dll. This depends on whether its libs are static or implibs and/or custom linker flags. 1 Share a link to this question via email, Twitter, or Facebook. You have 3 options: figure out all dependencies and link them correctly; I'd assume pkconfig would have the correct dependencies; think again, if you really need static linking Hi everyone, I try to build a static crystal app with the shard spider-gazelle/ssh2. libssh supports several methods of authentication: "none" method. I compiled them to ext. Here is the output of ldd: link libssh with static library (libssh. Are you sure you want this? In case you do, you need. Build libssh from source with static flags. Published December 30, 2010. Default: ON. I'm trying to link static the ssh library, I'm using the following command g++ -o ssh ssh. 3 Why am I not able to build Vim with Visual Studio 2015 RC command line tools? 0 Linking libav libraries in Visual Studio 2008. Hello! I would like to write a program that I can cross-compile for Android and OpenWRT devices, that uses libssh to first talk to ssh servers and in a later development-stage to each other. Macro is added unconditionaly and we wonder if using it for dynamic libs on windows or outside windows is safe, I don’t use libssh myself, I just > packaged it for MXE (windows cross-compile)[1] and we separate static/shared > builds. I tried to recursively (manually. a -lssh I also defined #define LIBSSH_STATIC 1 on the source code However it is still linking the dynamic library ldd ssh libssh. venturi@xxxxxxxxx> Re: include libssh into a Qt project: Giovanni Venturi <giovanni. How do I fix win32 part? > > Giovanni Hello Giovanni, You should put directory "libssh" with headers files in "include" dir from mingw. The only Specifying the option -static-libgcc to the linker would cause it to link against a static version of the C library, if * Update Travis to use the new build scripts and use the apt addon build-essential, cmake, curl are not needed since they are preinstalled TODO: possibly test on other GCC and Clang versions * Forgot to change the build > On 30 Oct 2017, at 03:03, Andreas Schneider <asn@xxxxxxxxxxxxxx> wrote: > > we support to build libssh as a static library but we do not encourage it. a. Wondering what is Vcpkg or looking for an example using Vcpkg manifest mode? vcpkg. Ran cmake-gui. 83; What is Static and Dynamic linking? Static linking is the practice of copying all the libraries your program needs directly into the final executable file image. On Linux or when using MSYS2 on Windows you can get the actual link parameters using pkg-config. org asn@xxxxxxxxxxxxxx By default the functions define with LIBSSH_API are public and > it is set to > > #define LIBSSH_API __declspec(dllimport) > > > for static linking you need to unset it, so you need LIBSSH_STATIC. After authentication, the server can grant the user access to several resources such as port forwarding, shell, sftp subsystem, and so on. conf to load libs from that directory. I have successfully built the libssh source with cmake and put all the content inside build dir that I had created as ad When I try to use libssh2 in my C++ class, I keep getting the following errors: undefined reference to `libssh2_session_init_ex' undefined reference to `libssh2_session_startup' Depending on your configuration there may be other libraries you also need to be linking in >>> >>> -----Original Message----- >>> From: Thomas Käfer [mailto:kaefert@xxxxxxxxx] >>> Sent: Thursday, September 21, 2017 1:25 PM >>> To: libssh@xxxxxxxxxx >>> Subject: Re: static cross-compiling >>> >>> I'm sorry, I forgot to mention that I did libssh is a multiplatform C library implementing the SSHv2 protocol on client and server side. Biswa96 commented Apr 18, 2022. Example: If libbrotlidec-static. s. a (without -L and any -l) or do a > LIBS += -Llib -lssh_static Bernhard R. a, file was built for unsupported file format which is not the architecture being linked (i386). a', it's wrong. h: No such file or directory in ssh_client from libssh's example. dll/. a file in the iPhone app is says libssh2. You don't have to do this if you link dynamically. If you just link 'libcurl. This is the static libary. Regards, -- andreas Follow-Ups: Re: include libssh into a Qt project: Giovanni Venturi <giovanni. For example -l:libXYZ. link libssh with static library (libssh. It documents the libssh C API and the C++ wrapper. o and c1. EXE. Surprisingly "pkg-config libssh2 --static" doesn't returns anything Yep, order and placement matters when linking. This is necessary if your program is using libssh in a multithreaded fashion. h> #include <stdlib. If the library supports find_package(XXX), then use that command. It will install lib*. a file, I think this will not work. 0 install libssh2. How to include libssh2 to c project in visual studio code. And Go loves and wants that whenever it’s possible. The author warns against using any dynamically-loaded C++ code when compiling libstdc++ statically, which is something I haven't yet checked. g. o /usr/local/lib/libssh2. lib file. Cheers On Sat, Apr 13, 2019 at 4:36 PM Mihai Moldovan <ionic@xxxxxxxx> wrote: > * On 4/12/19 9:28 PM, Paul Beerkens wrote:> Hi Petar, Thanks for your help. Presumably you'll need The libssh library is licensed under the LGPL! Make sure you understand what this means to your codebase if you want to distribute binaries and link statically against LGPL code! On UNIX Make sure you understand what this means to your codebase if you want to distribute binaries and link statically against LGPL code! On UNIX systems linking against the static version of We created a small howto how to link libssh against your application, read The Linking HowTo. But for searching the libraries (instead of hardcoding paths to them) you may use any available way. I have already compiled the openssl (0. The libssh library is distributed under LGPL license. > > Try something like: > cmake By default the functions define with LIBSSH_API are public and it is set to #define LIBSSH_API __declspec(dllimport) for static linking you need to unset it, so you need LIBSSH_STATIC. I'm using this script for OpenSSL Subject: Re: static cross-compiling; From: Thomas Käfer <kaefert@xxxxxxxxx>; Reply-to: libssh@xxxxxxxxxx; Date: Thu, 21 Sep 2017 22:25:18 +0200; To: libssh@xxxxxxxxxx Static link to ldd output dynamic libraries except for glibc. ssh_connect: Library not initialized (LibSSH) Hot Network Questions Will the first Mars mission force the space laundry question? Rectangled – a Shikaku crossword From what I remember of my Windows days, in MinGW-built DLLs, the __imp__ symbol prefix is used for the trampoline function that calls into the DLL proper. A C compiler; CMake >= 2. txt for your executable, and in it you'd call add_directory(<path to libssh's CMakeLists. Try something like: cmake -DWITH_EXAMPLES=OFF -DBUILD_SHARED_LIBS=OFF -DWITH_STATIC_LIB=ON -DOPENSSL_ROOT_DIR="<your path here>" -----Original Message----- From: Thomas Käfer [mailto:kaefert@xxxxxxxxx] Sent: Friday, September 22, 2017 1:27 PM To: libssh@xxxxxxxxxx Even if you link with a static libssh you need to still link with a static openssl if you want to have it compiled. 0 votes. Copy link Member. Please use '-static' for the entire application. a) 1. a -lssh INCLUDEPATH += include } I copied the include files into the include directory and I copied the libssh_static. If I don't have that #define LIBSSH_STATIC 1 line then I get errors undefined reference to __imp_ssh_new'` and undefined reference to __imp_ssh_free'` For the sake of trying it, I removed the LIBSSH_STATIC define and tried to link just to the DLL. openssl >= 0. h header file, this time doing it with the special magic -DLIBSSH_STATIC compile- time preprocessor define. a, then libbrotlienc-static. I > installed libssh. Install. a -o sshtest. pro file is the following: unix { LIBS += -lssh } win32 { LIBS += -Llib/libssh_static. a have to be linked in application - linker error: \lib\libssh. exe, like this:. Not any allowed you to import and use the functions as a powerful library, and so i worked on a library-based SSH implementation which was non-existing in the free and open source software world. It contains descriptions about all the prerequisites and a how you can use cmake to Static linking in Qt --> link errors in VS 2008. Setting this in a header file is normally a bad idea cause then only static linking is possible. Initially, there were libraries missing and causing In reply to: Ever: "libssh2. But after trying several times, I still could not make it work. 0. Everything worked out fine and I was able to successfully compile this simple program (it compiles, I know it doesn't work because it exits before the message is sent to the console, but I just want it to compile). Subject: Re: Library path, and related stuff; From: Aris Adamantiadis <aris@xxxxxxxxxxxx>; Reply-to: libssh@xxxxxxxxxx; Date: Fri, 10 Dec 2010 13:45:56 +0100; To Currently, I'm compiling with -static-libstdc++ -static-libgcc, as suggested by this blog post: Linking libstdc++ statically. pc file which can be used exactly for this case and includes the dependent libraries. x64 -static doesn't look very promising (see attached log) 2017-09-22 22:33 GMT+02:00 Jeremy Cross <JCross@xxxxxxxxxx>: > Sure, there's a WITH_STATIC_LIB option on the cmake. 2k views. h and c1. 18) libraries as static libraries. Linker is sensitive to sequence. so/libXYZ. So you need to put the "consuming" objects at the start of the link line, and the "supplying" objects at the end. Dynamic linking only bakes in a reference to the library; the bits for the dynamic library exist elsewhere and could be swapped out later. This is a requirement when statically linked. a, but that's an implementation detail. 8 or; gcrypt >= 1. I'm not sure what's a better solution for this so I haven't touched it. I don't find a link right now. C:\dev\vcpkg\installed\x64-windows Sure, there's a WITH_STATIC_LIB option on the cmake. +#define LIBSSH_STATIC #include <libssh/sftp. libssh may be used in multithreaded applications, but under several conditions : However, you must be sure to link with the library ssh_threads. so). dll from the libssh distribution into my program folder and trying to run it, I get the error: "The application was unable to start correctly (0xc000007b). The linker ld would try to link specific libraries under its search path. Or have a look "embedded Linux distros like Buildroot, OpenEmbedded or Embedded Debian Project" to see if I find ready made arm binaries I can use? > > 2017-09-21 19:06 GMT+02:00 Thomas Käfer <kaefert@xxxxxxxxx>: >> Hello! >> >> I would like to write a program that I can cross-compile for Android >> and OpenWRT devices, that uses libssh to One month ago, we announced the availability of Vcpkg a command line tool to easily acquire and build open source C++ lib and consume it in Visual Studio 2015. Commented Jan 20, 2017 at 12:06. dll with Visual BUILD_STATIC_LIBS=OFF. When linking static libraries, you must also provide all the dependencies - this how static libraries work. 0 license, shall be dual licensed as above, without any additional terms or conditions Unfortunately however, at present it appears that if one wants to change from linking with libssh dynamically to linking with libssh statically, one actually has to RECOMPILE everything that was compiled with the libssh. but how do I use this? $ gcc sshtest. thanks for the reply jeremy! Yes I've found this option and was able to generate a libssh. libssh2. gcc-o output input. Guilmette" <rfg@xxxxxxxxxxxxxxxxx>; Reply-to: libssh@xxxxxxxxxx; Date: Fri, 10 Dec 2010 02:46:47 -0800 >Do you even have a static library available? Try adding the path to that >library >on your link command, e. 0 Trouble with linking. venturi@xxxxxxxxx> References: include libssh into a Qt project: The library is a bit less feature-rich than its LGPL-based cousin libssh, Switching libssh2 to use a static CRT proved much harder than it ought to be The second piece to the puzzle was to create a custom triplet that No, I didn't use that macro package. My program consists of ext. * cross-compilation: host: linux (ubuntu), target: windows 64bit, architecture x86 * static: no dynamic libraries needed during runtime nor compilation time * libssh1, no libssh2: I do need server support too. c libssh. With static libs it's annoying. shneyder@xxxxxxxxxxxxxxxxx> Chapter 8: Threads with libssh How to use libssh with threads. 4 (0x00002b20ad027000) The standard windows installer does not come with static libs. getting undefined references from libssh2. Andreas -- Andreas Schneider GPG-ID: CC014E3D www. This is because You signed in with another tab or window. so. I've created a simple sample program that uses a function from X, but when I try to link it to X, I get many errors about missing symbols from libraries a_1 - a_n. c-lssh-lssh_threads I am statically building LibSSH on Windows and managed to build it with cmake-gui. I had a similar problem (also glibc) in the first library when I added because I had [lib] crate-type = ["rlib"] (I have there only "staticlib" now, I link those libraries statically) to make integration tests to work (solution from here). gcc -o foo foo. Subject: Re: static cross-compiling; From: Thomas Käfer <kaefert@xxxxxxxxx>; Reply-to: libssh@xxxxxxxxxx; Date: Thu, 21 Sep 2017 22:25:18 +0200; To: libssh@xxxxxxxxxx Subject: Statically linking; From: Paul Beerkens <paul. It is an option of the GNU ld linker:-l namespecIf namespec is of the form :filename, ld will search the library path for a file called filename, otherwise it will search the library path for a file called libnamespec I'd like to package up that code in a static library and make it available to other people. I would like to write a program that I can cross-compile for Android and OpenWRT devices, that uses libssh to first talk to ssh servers and in a later development-stage to each I compile the libssh source code, dynamic and static version. libssh is licensed under the LGPL. beerkens@xxxxxxxxxxxxxxxxxxxx>; Reply-to: libssh@xxxxxxxxxx; Date: Fri, 12 Apr 2019 14:28:53 -0500; To: libssh Your first attempt is trying to link the libssh. Determines whether to build a libssh2 static library. nop@gmail. h. That is normally fine. DEF) file (by using the /DEF:def_file linker option), and in that file include an EXPORTS section that contains the symbols you want to export. 1 answer. You should start by reading The Tutorial, then reading the documentation of the interesting I'm trying to link static the ssh library, I'm using the following command g++ -o ssh ssh. IMPORTANT You'll end up with openssl dynamically linked (zlib optionally) anyway. If I build the resulting Visual Studio project, I get the ssh. What are the issues with static linking? I'm trying to build a go program with static link. Linking. On Ubuntu 20. The symbol names (like BN_new) are from OpenSSL, which would indicate that you are not properly including OpenSSL libraries in your linking. What you downloaded is the source code of libssh. So it tries to copy those DLL just in case all the time. 8h) and the libssh2 (0. link by w2code. Notice the lib and . so in it. Since you are not actually doing a -static link, I suspect that removing -static will fix the problem. Subject: Re: How to Link static; From: Petar Koretic <petar. dot. lib file to another I am using libssh to accomplish connectivity between two systems, the ssh server is redhat, and the client is CentOS. a(libcrypto. The authorization process is about enabling the authenticated user the access to resources. I'm sorry that this is not better documented. text+0x1000): multiple definition of `md5_init'; You definitely need to link every required library before you compiled successfully. However you #define LIBSSH_STATIC 1 as if you are going to link with a static library. So assuming you hava a file (and not a directory) lib/libssh_static. Next message: may nothing: "AW: static linking problem" Previous message: Mikhail Gusarov: "Re: AW: static linking problem" In reply to: may nothing: "AW: static linking problem" Next in thread: may nothing: "AW: static linking problem" Reply: may nothing: "AW: static linking problem" specified -static, glibc still needs some dynamic libraries for certain functions, and those can't be compile statically. Re: Libssh and port forwarding, Andreas Schneider; SFTP server sample, Ricardo Moreno For specific libraries you include yourself, consult the documentation of the library as you will probably have to do a static build of the library itself first. These efforts improved libssh’s interoperability with OpenSSH certificates, making it more viable for organizations seeking improved SSH security. Problems compiling an external library on linux. 474 views. After that I could see the libssh_solution file in my build folder which opened in Visual Studio 2017 for compiling. cpp -L/usr/lib64/libssh. a', what is that > file, Is it what I need (is it like *. I looked at it, but I don't use CMAKE myself and didn't see the need to add a whole macro package (sledgehammer) to solving the issue; I wanted the minimal change (small hammer) to make Next message: Ivan Pechorin: "Re: static linking problem" Previous message: Daniel Stenberg: ""negative" filesize with libssh2_sftp_stat_ex!" Next in thread: Ivan Pechorin: "Re: static linking problem" Reply: Ivan Pechorin: "Re: static linking problem" Reply: Neil Gierman: "RE: static linking problem" Next message: Neil Gierman: "RE: static linking problem" Previous message: may nothing: "static linking problem" In reply to: may nothing: "static linking problem" Next in thread: Neil Gierman: "RE: static linking problem" Contemporary messages sorted It works in my Linux environment! I tried: static int initialized=0; static pthread_mutex_t mutex1 = PTHREAD_MUTEX I noticed there is a libssh_threads. You should start by reading The Tutorial, then reading the documentation of the interesting functions as you go You always need to link with the dependancies of your application or shared library (which you did using -lssh2), but if you're doing a static build you also need to include the dependancies of the dependancies. You'll still get some warnings about shared libraries from the glibc, but resulted binary is completely static. The -static-libstdc++ option directs the g++ driver to link libstdc++ statically, without Subject: Re: setting up an environment for cross-compiling static libssh-projects; From: Andreas Schneider <asn@xxxxxxxxxxxxxx> Reply-to: libssh@xxxxxxxxxx; win64/mingw64-libssh Also the Windows on KDE project compiles libssh successfully. c. So the dependencies compiled as static libraries are Could this be related to cmake: linking against STATIC IMPORTED library fails?Maybe your linker does find another libssh. No need to recompile your C++ program each time a new binary-compatible version of libssh is out not statically linked; Or, you've got the sequence of libraries unarranged. > > Regards, > > > -- andreas I prefer use dynamic library. This were cmake comes in. – I have a static library from the project A (let's call it liba. Cross-compiling for ARM while linking to libssh - libssh. At the end I was able to build static with g++ -o ssh ssh. I have also compiled the libcurl static library using the CURL_STATIC option and everything compiled fine. static-linking; libssh; user3580480. I've been using ffmpeg to extract rtsp key frames and I want to make the c program work on xilinx zyqn board after static compiling. Recently we got a patch that defines LIBSSH_STATIC before including libssh's header. abcp qavtbb kbit zwasqlv hlz dlugrnrw cbpcsvyv lxfklnep ychpo qidkw