For each requirement conanbuildinfo. This generator also declares some global variables with the aggregated values of all our requirements. The values are ordered in the right order according to the dependency tree.
For example, if this recipe declares:. Other library requiring MyLib and using this generator will get:.
CMake stuff i wish i knew earlier
This is a helper and general purpose macro that uses all the macros below to set all the CMake variables according to the Conan generated variables. See the macros below for detailed information. Calling this method makes writing the package method for recipies easier. All artifacts will always be found in the same location. Otherwise, they may be found in different locations depending on your build environment eg Linux vs Windows. This loads the functions or macros that packages may export and makes them available for usage in the consumers CMakeLists.
Variables in conanbuildinfo. Macros available in conanbuildinfo.How to CMake Good - 0b - Running CMake
It contains all the properties include paths, compile flags, etc. Their only properties are the location and the dependencies. This guarantees correct link order. Input variables for conanbuildinfo. Version: 1.Skip to content. MarkaPola committed Apr 30, Unified Split. Showing 51 changed files with additions and 42 deletions. Adds options to the linker command line for targets in the current directory and below that are added after this command is invoked.Dave tipler
The following arguments specify compile options. Repeated calls for the same The following arguments specify link options. If a space i. Work around this by disabling dependency tracking. It is known that version 6. Current assumption: the flag is needed for every version from 3. Oops, something went wrong. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. To pass options to the linker tool, each compiler driver has is own syntax.
These arguments will be formatted according to the. Adds options to the linker command line for targets in the current. Adds options to the link step for targets in the current directory and below. See documentation of the.A projectile is thrown up at an angle theta to the horizontal ground
This command can be used to add any options, but alternative command. This command can be used to add any options, but alternative commands.Kjaerhus eq
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Now I have build mongocxx driver code for both static and shared libraries. My project structure and cmake contents as follows. My main. Learn more. Building mongo-cxx-driver using CMake Ask Question. Asked today. Active today. Viewed 6 times. Vimalan E Vimalan E 39 4 4 bronze badges.
Active Oldest Votes.Rsync include multiple directories
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The "-bnoipath" option is needed. From "man ld": Note: If you specify a shared object, or an archive file containing a shared object, with an absolute or relative path name, instead of with the -lName flag, the path name is included in the import file ID string in the loader section of the output file. You can override this behavior with the -bnoipath option. A null path component is always used for shared objects specified with the -l flag. This option does not affect the specification of a path component by using a line beginning with!
The default is the ipath option. This prevents the full path specified on the compile line from being compiled directly into the binary. By default the linker places -L paths in the embedded runtime path. From "man ld": libpath:Path Uses Path as the library path when writing the loader section of the output file.
Path is neither checked for validity nor used when searching for libraries specified by the -l flag. Path overrides any library paths generated when the -L flag is used. If you do not specify any -L flags, or if you specify the nolibpath option, the default library path information is written in the loader section of the output file. There are differences between versions.
The linker seems to always put the full path to where the library was found in the binary whether using a full path or -lfoo syntax. Transitive link dependencies work just fine due to the full paths. It has the "-l:libfoo.Search everywhere only in this topic. Advanced Search. Classic List Threaded. Niels Dekker - address until How to find vcvarsall.
We need to find a file named "vcvarsall. How can we retrieve this directory path name within our CMakeLists. Looking at a CMakeCache. If so, do you have another suggestion on how to find "vcvarsall.
David Cole Re: How to find vcvarsall. Thanks for your suggestions, J Decker and David. However, I'd rather not have to write such code for each compiler version separately, in my CMakeLists. Also I have the impression that CMake already "knows" the directory path name of the selected compiler current generatorso it would be helpful if CMake could tell me so directly. We currently find vcvarsall.
Is it okay to make that assumption? In CMakeCache. Microsoft has a habit of assuming things like this are internal implementation details, though, and they often move things around from version to version. So nothing is guaranteed. But I would think the compiler variables would be better suited if you don't want to rely on ENV or registry I would point out however, that you don't need to rely on any cmake vars or any cmake commands having been run if you go with ENV or registry.
HTH, David C. Indeed, the following appears to work fine, as I tested with CMake 2. In the past it did not, apparently, as a CMakeCache. In reply to this post by Niels Dekker - address until Or, if guaranteed, what version of CMake it started being that way.
Maybe Brad will chime in and confirm or deny, and mention the version if he knows it Be aware that this file will be re-generated by the next version of CMake if you upgrade CMake and run it in a pre-existing build directory, it will create all of its own support files like those in its very own version-named directory, and the ones from the older version of CMake are ignored.
For this, and many other reasons, it is always best to start with a clean build tree when switching versions of CMake. It's just easier to read the values as a person if you don't have to think about any ". In reply to this post by David Cole Isn't it better to use vsvars But indeed, if you only have bits Windows, you might as well call vcvars But my original question was about finding vcvarsall. Then you are good to go. Sorry for the noise. D -- Powered by www.Search everywhere only in this topic.
CMake stuff i wish i knew earlier
Advanced Search. Classic List Threaded. Mark Abraham. In order to build an application with several HPC performance utilities, it would be good to be able to specify the linker and have it show up on the link command line.
CMake mailing list. Re: how to really change CMake linker. HTH, David C. Hi David. Thanks very much for your reply!
That was extremely helpful, and will let several packages document a functional workflow for the future. Ah, that explains one source of confusion. The docs did say that this variable specifies a rule, now that I know what to look for. It's easy to assume that this would be the default behaviour for constructing linking command lines. It's probably too late to consider a change, but I hope the original reasoning works well somewhere!
In reply to this post by Mark Abraham. Search everywhere only in this topic Advanced Search how to really change CMake linker. Hi, In order to build an application with several HPC performance utilities, it would be good to be able to specify the linker and have it show up on the link command line.
I want to setup a custom toolchain with cmake. I've set the compiler but I don't know how to set the linker. This error is reported because cmake try to use the compiler to link:. NB that variable does not indicate the path to the linker executable; it says how to link an executable! See also this post from CMake mailing list and this one - this also makes a natural place to prepend a linker modifier to another linker.
Learn more. CMake: use a custom linker Ask Question. Asked 10 years, 4 months ago. Active 8 days ago. Viewed 54k times. This error is reported because cmake try to use the compiler to link: The C compiler "xgcc.
Breezeight Breezeight 1, 2 2 gold badges 17 17 silver badges 26 26 bronze badges. Active Oldest Votes. One approach is to set that rule to use the linker, e. You don't specify anything in this rule.
It's a rule for cmake to follow to build an executable, so it inserts the objects that got built from eg sources you added to targets in your CMakeLists. This doesn't work in most cases - that variable establishes the rule for the whole link command, and generally flags and arguments will be required for linking.
Gunther Piez Gunther Piez Can I set it in CMakeLists. Are You sure about the name of the variable? Invoke ccmake. And this generate an error. I used to do exactly this, and now it doesn't work. CMake 3. Sign up or log in Sign up using Google. Sign up using Facebook.
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