Cmake combine static libraries

Cmake combine static libraries. Sep 22, 2021 · I don’t understand where it can appear at all when linking . These . hpp │ └── src │ └── Point. so shared libraries. like if the library merge were > occurring before the actual compilation of the unit libraries BUILD_SHARED_LIBS. Mar 26, 2022 · I build a static library and then want to add two more static libs to it after it is built. c and sub. When linking a static library, the linker will only need to go looking in the static library for symbols it has not yet been able to resolve. Aug 27, 2018 · Because static library foo_lib doesn't track its dependency, you need to link bar with a library, which knows that. Kyle. cpp) into shared library along with linked third-party library libfftw3. This makes it very easy to release the combined functionality to a 3rd Party (such as Sep 21, 2018 · Each sub-project generates a static library. ) - whereas your executable and static libraries (usually) doesn't contain position independent code. c: int hi() { return 0; } test2. To have CMake merge lib1 into lib2 upon linking, use libtool and a POST_BUILD action: COMMAND /usr/bin/libtool -static -o $<TARGET_FILE:lib2>. Is there an elegant way to do this, or maybe an existing function? >> >> >> >> Thank you very much Apr 15, 2013 · The library comes with instructions on how to compile it using CMAKE to generate a make file that takes care of all of the dependencies. a out. – Fraser. If this meets your needs, you could configure the CMake script to add to the project a pre-link event that combines the libraries into libFinal. All of this depends a bit on your platform, compiler and the type of libraries: In case, you can build X, Y, Z yourself: Create a new project XYZ, built from the aggregated source files of X, Y and Z. @craig. E. Nov 4, 2018 · Add the -fPIC flag to your compile lines (PIC = Position Independant Code), and then link something like: Compile the files: Create the shared lib: Actually, I want to understand how to limit the binding of symbols of static library in shared library. txt add_library(libtest STATIC lib. ar rcs libout. It isn’t fully automated, but compile once is easy enough: add_library (l1-standalone STATIC a. that the 'global' > library depends on the primary libraries. Object files linked into a shared library must be compiled as position independent code (-fpic/-FPIC on Linux/Solaris etc. A plugin that may not be linked by other targets, but may be dynamically loaded at runtime using dlopen-like functionality. rL313122: Use CMAKE_AR instead of the system default 'ar' for merging static libraries. For earlier versions of CMake, use LINK_FLAGS property instead. txt ├── Makefile └── x86 ├── CMakeLists. asm └── crtn. It looks like a dependency inversion, although I still need to investigate the actual error: sometimes the generated "merged" library contains code from previous builds, i. If you instead want to create a combined, single STATIC library libC2, which contains the object-files archived in both static library files libA and libB created from targets A and B, then you somehow need to extract the archived object-files from libA and libB. This guards against a case where one source file could be used multiple times with different CFLAGS. The command used in cmake was target_link_libraries(shared-lib-name ${FFT_LIBRARIES}) Took an android toolchain file, and ran the following command for each architecture: (the following is for mips64) cmake . txt file for each of the two libraries. e. To review, open the file in an editor that reveals hidden Unicode characters. AFAIK, CMake does not offer any (convenient) way to combine several static libraries into one (static or shared) library and doing so in a portable (generator, platform) way seems to be non-trivial. Sometimes you might be forced to compile them as shared libraries, due Oct 5, 2010 · That's why I was looking for a way to produce: >> >> - once the 48 objects files common to console and window building modes >> - twice the 2 object files specific to the building mode: >> * once in the console mode >> * once in the window mode >> - make a static library for the console mode >> - make a static library for the window mode Example: add_library (lib1 STATIC lib1. c -c means to create an intermediary object file, rather than an executable. See Linking static libraries to other static libraries for more info there. Mar 29, 2023 · If you're asking about how to link your project to the pre-built static library, you can do like this by calling target_link_libraries. When we use CMake to build a library add_library(example STATIC lib. Jul 21, 2020 · I still haven’t found a satisfactory solution to this, but this is what I’m planning and I’m interested to hear if anyone has any other perspectives. MODULE. lib at the end on Windows. cc. The CMakeLists. vcxproj. 63k 18 121 159. If they are shared libraries you need to take care of deployment. asm ├── crti. Previous message (by thread Use the LINK_OPTIONS target property or target_link_options() command to add link flags explicitly. The problem here is that dynamic libraries have to be generated with position independent code, so that they can be loaded dynamically into the address space of an existing process. lib full\path\to\lib2. c) SET_TARGET_PROPERTIES(merged PROPERTIES STATIC_LIBRARY_FLAGS "full\path\to\lib1. A working solution is to unpack all object files from all static libraries and then repack them into a combined library. cmake. la With our current build system, we combine these static libraries into "Release libraries". Note that this requires a single-config generator like Ninja. Apr 15, 2021 · A single library target can be built as static or shared, but not both. Projects that want to support such . a at the end on Linux, and . Documentation of target_link_libraries: Specify libraries or flags to use when linking a given target. 12. I will create library target and link the library like below. If you can not rebuild the libs and they were built as a shared libraryy May 1, 2019 · Shared library. The idea is to create lib1 and lib2 as static, and then link both to the mainLib, which must be a shared library. Apr 9, 2019 · I need to make library test and use it in other projects by #include &lt;libraryname&gt; In project test: CmakeLists. exe /OUT:z. Item names starting with -, but not -l or -framework, are treated as linker flags. You should specify a complete list of sources in yourCMakeLists. proto file generated by the first command, wraps a call to protoc which consumes the . 在实际项目中，往往需要将一些基础库或者算法库发布出去，但是不同项目可能需要用到不同的子模块，此时为了保持简洁，可能需要合并多个静态库为一个。. Jul 25, 2015 · CMake's generator takes whatever is set for CMAKE_<LANG>_FLAGS at the end of any CMakeLists. c) add_library (lib1_2 INTERFACE) target_link_libraries (lib1_2 INTERFACE lib1 lib2) Note that with this strategy, lib1 and lib2 will still exist as separate files, but linking against lib1_2 will link against both of these libraries. In the main project, I want to combine the generated objs, generated static libraries from other sub-projects, and some other third party static libraries together into a single static library. a with Global binding, when I link it in Nov 3, 2023 · A second custom command declares a dependency to the . creating lib1 using lib11 and lib12 objects and similarly lib2. cpp, file2. In the latter case make sure you run CMake from within "Visual Studio Developer Prompt". c) add_library (lib2 STATIC lib2. This is often not the case. See the Tests The idea is that you build modules in CMake, and link them together. > > However, I don't know how to tell CMake to run this custom command > once all the primary libraries have been built, i. Something like:SET(LIB_SOURCES common. But since foo is a static object, even though it could guess it needs to be PIC 1, it does not enable PIC by default for foo. Sep 21, 2018 · It works on CMake > v3. Is it a XY question? What do you want to do? Do you want to combine multiple static libraries together? – May 20, 2018 · I am in the process of learning C++. The are replaced when cmake creates a static library, not in a custom target. If your target was installed after calling CMake with -DCMAKE_INSTALL_PREFIX=/usr, then your lib would end up in /usr/lib (as expected with prefix set to /usr ), but your headers would end up in /include (probably not expected). hh. Jul 23, 2021 · Adding objects to a shared library, module library or executable has a different effect to linking a static library into a shared library, module library or executable. The static library created in the previous example is > It looks like a dependency inversion, although I still need to > investigate the actual error: sometimes the generated "merged" library > contains code from previous builds, i. txt ├── build ├── lib │ ├── CMakeLists. Project > Add Existing Item > pick std2. It doesn't seem like you can chain this technique, which would fix my problem. cpp) target_link_libraries(wittyPlus. The documentation for add_custom_command/“BUILD EVENTS” says The command becomes part of the target and will only execute when the target itself is built. Jun 28, 2021 · Hi @Marek R, we need both the targets with every build. Mar 23, 2016 · The PRIVATE keyword only affects transitive usage requirements of the library lib1 when another library links to lib2. Thank you @Tsyvarev for your suggestion. cpp) add_library (l1-shared SHARED $<TARGET_OBJECTS:l1-standalone>) set_property (TARGET l1-standalone PROPERTY POSITION_INDEPENDENT_CODE 1) Feb 6, 2019 · That interface must be used by other libs, like lib1 and lib2. After having built the other libraries also with libtool, you can combine them just by adding the . Peter Mortensen. scott – I’m still unsure how to use cpack -C to combine, say, two Debug builds, one with BUILD_SHARED_LIBS set to YES and the other to NO. add_library(${TMP_BINARY}-shared SHARED ${SOURCES}). lib. The options are: EXCLUDE_FROM_ALL. so to the executable. h files are then declared as sources for a library target, which works great, as soon as the library is compiled, both custom commands are Static libraries do not link with other static libraries. The behavior is the same. However, CMake generates static libraries otherwise. Summary. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. In this post, we'll explore how to address these issues. Nov 9, 2022 · Xmake Version xmake v2. A/src/lib1. com> wrote: > Hello. So I'm building a shared library, out of two static libraries. 10. Raw. 8, you can do this using the OBJECT library type. This presents problems for some consumers who specifically need one or the other. 3+HEAD. Per's answer makes more sense. If no <type> is given the default is STATIC or SHARED based on the value of the BUILD_SHARED_LIBS variable. txt ├── Makefile ├── crt1. 13. so and furhter link libFinal. ¶. CMake does not have an abstraction for copying static libraries into others when linking. cpp b. 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. c. Can > anybody provide a solution for this? Aug 25, 2017 · rCXX313122: Use CMAKE_AR instead of the system default 'ar' for merging static libraries. cc and . txt │ ├── build │ ├── include │ │ └── Point. CMake knows bar is a shared library, and enables position independent code by default. cpp. 1. lib, you can it do like this: target_link_libraries(myProj myLib) edited Mar 29, 2023 at 11:45. @Allen – I looked into what HDF5 does, and I mostly like the structure. file1. Apr 8, 2023 · Related: Combining several static libraries into one using CMake. Edit: In response to your update, the only way I know to select only the symbols that are required is to manually create Oct 5, 2010 · Cmake could just omit the link step (it already knows all object files) and linking such a virtual library to a static one just includes the already compiled object files. Use set_target_properties() or set_property() commands to set its New in version 3. c), we will get a libexample. One of the most confusing things is to learn how to link libraries when using CMake (I use CLion on Windows which uses CMake). But I guess if this was possible, you would not have asked on SO. Aug 7, 2020 · Well, you are wrongly expecting them to be replaced. b35ff31 Operating System Version and Architecture macOS Venture 13. c: May 5, 2021 · The librarian instruction is: lib. I have spent a while researching, and found a number of suggestions and implementations of cmake Sep 21, 2018 · Each sub-project generates a static library. Linking Static System Libraries Nov 21, 2017 · 6. "Release libraries" are a combination of all required static libraries (no dependencies left anymore) into a single static library without any new code being added. See mloksot's answer. For this variable to have any effect, the associated CMAKE_<LANG>_LINK_LIBRARY_USING_<FEATURE>_SUPPORTED variable must be set to true. libC1 instead. Below is the CMake instructions I ended up with: Sep 19, 2023 · Static libraries, also known as archive files, are packages of code that are compiled and linked directly to the target program. I can create such a merged library by hand, and it works fine: > I've added some custom commands to merge the object files of several > libraries (. Don't prepend the ar commands by a dash, not all ar implementations support that (llvm-ar doesn't). so that contains inside it all the necessary information Apr 23, 2015 · It's unfeasible and not recommended to create the shared/static library version from the same set of object files - at least on many platforms. veselov at gmail. I found this posting: Is it possible to get CMake to build both a static and shared version of the same library? which told me that I can use multiple add_library statements to Sep 26, 2014 · uninstall remove libraries from an installed directory. lib") Sep 6, 2017 · Wrote a cmake file to turn my C++ code (mod. If the developer sets BUILD_SHARED_LIBS to True in the CMake configuration command, running cmake --build generates shared libraries. txt i. so and libB. -DBUILD_SHARED_LIBRARIES=False. I have done it for GCC, Clang via ar -M < script. May 10, 2010 · To answer your question: you can't join two static libraries, not in aportable way. so that are linked into my code stuff. > >-- > Apr 21, 2022 · ADD_LIBRARY(${library_target} STATIC ${sources} ${includes}) And then pass the BUILD_SHARED_LIBRARIES to cmake from command line: cmake . like if the library merge were occurring before the actual compilation of the unit libraries Feb 28, 2021 · Jay_K: Apparently this is a faq: build static and dynamic libraries. First you need to make sure that all libraries you depend on are built statically. – pmr. As far as I am aware CMake doesn't offer a nice cross platform API for extracting the object files from a static library and adding them to a new static library. answered Jun 12, 2019 at 19:27. la libabc. It gets more complicated when the consumer itself might have switchable behavior which can select whether it wants to consume static or shared libs. Instead of using conditionals it is simpler to omit type of the library entirely. Aug 6, 2014 · With our current build system, we combine these static libraries into "Release libraries". txt. Add it to the CMAKE_PREFIX_PATH when you call CMake, then CMake will look for your library in the passed paths, too. Assuming there is a function func () in libmathutil. c) into object files and then package these object files into an archive file. In that case the type of the library will be selected according BUILD_SHARED_LIBS variable. 0 Describe Bug This is not a bug, and I'm new to CPP area, so it's might be a very rookie question Our legal department has indicated that we need to actually include the contents of the library inside one of our app's existing static libraries rather than just shipping the CUDA static library as a separate file. The flags will then be placed at the toolchain-defined flag position in the link command. Aug 6, 2014 · Seems like your best bet using CMake would be to use OBJECT libraries for your Project01 through Project99 -- and then use STATIC libraries for your ReleaseLibraries, which combine the objects of the appropriate project libraries You may need to use dummy source files for the static libs, depending on your build environment. cpp Jul 24, 2019 · @AlexErling you can add a pure interface library that has the include dir: add_library(common INTERFACE) and add the include directory target_include_directory(common INTERFACE your/include/dir) – Guillaume Racicot May 10, 2010 · That's why I was looking for a way to produce: - once the 48 objects files common to console and window building modes - twice the 2 object files specific to the building mode: * once in the console mode * once in the window mode - make a static library for the console mode - make a static library for the window mode That's why to do so, I May 30, 2018 · Yes it is. So no, that is not possible with CMake abstractions today. a files. Thanks for the help. Yes, I know this, my problem is: how to include the . c) ADD_LIBRARY(console ${LIB_SOURCES})ELSEIF(BUILD_WINDOW) LIST May 4, 2017 · I have two files in my project called Test4:. But I can't use both triplets and have both available Aug 31, 2020 · External lib builds with cmake. Then, in the CMakeLists. lib file to your project and it automagically gets merged into yours. o out. a file. Jul 9, 2014 at 9:46. exe, I connect the static libraries IMGUI and IMGUI_GLFW to Core 1 time, the Core - shared library and it is added as a target_link in the root directory, from where the conflict between Core and IMGUI is created, if IMGUI to . I am not sure if CMake provides a (simple) way to do this. That would exactly achieve the requested features (compiling those files only once), is hack-free and totally straight-forward. If the external lib builds with cmake then you could add the lib to your build via a add_subdirectory ($ {libname_SOURCE_DIR}) call. ben. So here are my New in version 3. Dec 28, 2019 · See Creating a shared and static library with the gnu compiler [gcc] gcc -c -o out. Just create another library target, which will be shared one. The open source dependencies could be also shared libraries, or static libraries. Feb 23, 2011 · As of CMake 2. To me, this is kind of surprising, since it seems like a very common thing one might want to do. Learn more about bidirectional Unicode characters. This make file creates two shared libraries libA. You add them to your project with: ADD_LIBRARY(LibsModule. h files. 13: LINK_OPTIONS target property and target_link_options() command. . cpp) set_target_properties(libtest Feb 28, 2021 · Jay_K: Apparently this is a faq: build static and dynamic libraries. Mar 19, 2020 · I am trying to first create a static library and then link it to an executable using CMake. They will not be replaced. $<TARGET_FILE:lib2> $<TARGET_FILE:lib1>. To give some MWE of the code setup (the variables LIB1_ROOT and LIB2_ROOT in the CMakeLists. This makes it very easy to release the combined functionality to a 3rd Party (such as Hi all,I have a CMake library project which contains multiple child CMake projects, each of which produces a single static library. r means to insert with replacement, c means to create a new archive, and s means to write an index. 24. To create a static library using libtool, all those 80 static libraries must have been compiled with libtool --mode=compile and not plain gcc. c)IF(BUILD_CONSOLE) LIST(APPEND LIB_SOURCES console. txt file as the default compiler options when generating the build environment. Say you have file1. This variable defines how to link a library or framework for the specified <FEATURE> when a LINK_LIBRARY generator expression is used and the link language for the target is <LANG> . Also pass the 's' option when creating the merged library Oct 14, 2023 · If you're using CMake with MSYS2 and you want to compile an executable that can be run on another device without installing dependencies, you may encounter issues with linking static system libraries and using static libraries installed with pacman. But it sometimes fails on Linux Ubuntu. This property holds a semicolon-separated list of options specified so far for its target. h lib. Jun 29, 2017 · CMake isn't a standalone build tool, so you can't build your code with just it. Make sure that you generate different targets export files for each of static and shared, then write the appropriate loading logic in your package configuration script. boeckel (Ben Boeckel (Kitware)) May 5, 2021, 1:59pm 3. exe. In the root Mar 14, 2018 · I can use the same technique to combine different static library (OBJECT) within the subdirectory's CMakeLists. Since bar (shared) is linked against foo (static), both of bar and foo must be compiled with position independent code. As it turned out, it is not possible to merge multiple . txt file of the external lib will have some add_library(ext_lib_name ) statements in it. txt file and applies it to all library and executable targets in the same CMakeLists. Following answers might be useful: How to combine several C/C++ libraries into one? and Merge multiple . For this example, let's imagine I'm only using lib1, because the process would be the same for lib2. That is, the compiler must generate the code in a specific way so that it is suitable If you are bound to create a static library, the solution you linked in your original post is probably the best (CMake: include library dependencies in a static library). Jun 17, 2022 · Example: there is a static library L (providing its own public include directories and maybe depending on other libraries) whenever L is linked into an exectuable, the reference to L shall be enclosed in an -Wl,--whole-archive / -Wl,--no-whole-archive pair During my search for a solution, I found this message in the forum, but got errors for 2. Set the EXCLUDE_FROM_ALL target property automatically. New in version 3. Archiver (or MSVC librarian) flags for a static library target. You can generate NMake makefiles or Ninja if you want to do without . Tell add_library() to default to SHARED libraries, instead of STATIC libraries, when called with no explicit library type. la libs to an automake libaz_la_LIBADD variable, or directly from a Makefile with something like: libtool --mode=link cc -static -o libaz. If we have the following dependency: target_link_libraries(example PUBLIC lib123) where lib123 is another library, then we must have libx installed on a computer to use Jan 5, 2017 · target_link_libraries(main bingitup) bingitup is the same name you'd give a target if you create the static library in a CMake project: add_library(bingitup STATIC bingitup. You already know the location of your library. bundle_static_library. I downloaded the the pre-built bi Aug 18, 2023 · The problem is that when using a manifest I can either use the x64-windows triplet which will build pugixml::pugixml library or I can use the x64-windows-static triplet that will build the pugixml:static library. Aug 14, 2020 · To avoid more eventual headaches if I ever need a different case, I want to consider all combinations of static/shared libraries, i. Consider two source files: test1. The old situation was that each target had its own directory and CMake would build every dependent object for every target. h Structure. Targets that are shared libraries, modules, or executables need to use the LINK_OPTIONS target property. , make foo_lib shared, or combine foo_subproject_* libraries into archive library, as suggested by the referenced question How to combine several C/C++ libraries into one?. cpp, main. o This creates the static library. txt of level 2, I create the static library of level 2 depend on the static library of level 1 ( target_link_libraries(${PROJECT_NAME} LEVEL1) ), and then, I wanted to merge the libraries of level 2 and level 1 and third May 16, 2020 · Then a simple cpack --config /path/to/package. Sep 21, 2018 · Each sub-project generates a static library. If nothing uses a symbol, that Nov 6, 2021 · here is files and subdirectory in the xcrt directory: ├── CMakeLists. This is, in general, not possible, unless you recompile the static library. a files into a single . the exe is not linked 2 times for sure. Using ar or library tools to combine the static libraries seems to be the only way to go. Libraries are an integral part of your system. Let's ignore header files for now, as they can be all included in your source files. CMake应用：合并静态库的最佳实践. This section describes some common practices you might find helpful when working with libraries to build your system: How to include static library files. I want the output of the parent project to be a single static library, containing all of the child libraries. I suggest you could try to use Managing a Library command to extract all the object files from all libraries and then use it again to combine them all into a new library. extract the archived object-files from libA and libB. 7. cpp) CMake automatically adds the lib to the front and the . Is there an elegant way to do this, or maybe an existing function? > > Thank you very much. 在笔者的实际工作中，合并静态库的需求还是有的，而且大多数 CMake function which bundles multiple static libraries into one. >> >>-- >> Aug 21, 2021 · For example, I build the static lib of level1 first, which depend on the existed third_party. If the library is external, you might want to add the path I want to create a static and a shared library using CMake to create the build environment. a files) into a single static library. The most common decision is to build as a shared library ( BUILD_SHARED_LIBS set to TRUE in the CMake script). Jan 8, 2012 · find_library(FOO_LIB foo) CMake will figure out itself how the actual file name is. ar, and for Visual C++ via lib. Aug 20, 2021 · Do you need an actual static library or do you want to use them all together in cmake? I wanted to merge the libraries of level 2 and level 1 together to a new static lib But what for? Just link library level1 with library level2, and the dependencies are transitive. First it's important to recognize that static libraries do not link other static libraries into the code. Structure. Is there an elegant way to do this, or maybe an existing function? >> >> Thank you very much. A/CMakeLists. I want to create a static library that can be loaded by other projects who want to use those files. ) If you instead want to create a combined, single STATIC library libC2, which contains the object-files archived in both static library files. Assume your project called myProj and the pre-built library myLib. My project file structure looks like this: ├── CMakeLists. 2k 22 109 132. How to use the Multilib feature to combine multiple versions of library files into a single image. To create a static library, you need to compile its C source files (ie add. Jun 16, 2017 · The example you provided shows how you can combine raw object files into a single library. la libxyz. 2 and gives me a single static lib which combines all the objs I want. Feb 25, 2015 · Create a static library "merged" with a dummy source file, and add libs to be merged to the STATIC_LIBRARY_FLAGS, so they will be additional input to lib. Jul 3, 2018 · I have a very similar problem to one described on the cmake mailing list where we have a project dependent on many static libraries (all built from source in individual submodules, each with their own CMakeLists. It checks the usual places like /usr/lib, /usr/lib64 and the paths in PATH. Tsyvarev. 8. Furthermore it should create an ANSI and a UNICODE version. Otherwise, the default is STATIC. g. Also, could you share your output for which libtool and ls -l <the path output in the which libtool command>. This answer says the way to do it is to insert -Wl,--whole-archive before my static libs, the -Wl,--no-whole-archive after them. 31. You need to link this library as usual. so. Working With Libraries. libA and libB created from targets A and B, then you somehow need to. > > > > But currently I still have problems of further combining third party > static libraries into the final generated static single_static_lib. proto file and outputs a set of . txt describing the build process for each library) that I'd like to combine into a single static library for release to the consumers. txt files are A/ and B/ respectively): A/include/lib1. – Andrea. asm Jan 18, 2019 · 2. cpp) add_library (l1-shared SHARED $<TARGET_OBJECTS:l1-standalone>) set_property (TARGET l1-standalone PROPERTY POSITION_INDEPENDENT_CODE 1) Oct 5, 2010 · That's why I was looking for a way to produce: > > - once the 48 objects files common to console and window building modes > - twice the 2 object files specific to the building mode: > * once in the console mode > * once in the window mode > - make a static library for the console mode > - make a static library for the window mode > > That's Oct 25, 2021 · In essence, this means that the person building your library can specify if the project builds static or shared libraries with the flag BUILD_SHARED_LIBS. After that you need to make sure that your find_package calls find those static libraries. 3 days ago · 14. My problem is that I don't really know how to link the libraries I wrote an article about having such a function that enumerates the interface static library dependencies of a static library and combines them into one big static library. Jun 12, 2019 · CMake has a special type of library target which is intended for grouping - INTERFACE: add_library(myliball INTERFACE) target_link_libraries(myliball INTERFACE mylib1 mylib2 mylib10) Such library target is not compiled, it just serves for propagate its INTERFACE properties when linked. Calls to add_library() without any explicit library type check the current BUILD_SHARED_LIBS variable value. Just add the . Okay, so I have a solution. I would like to create a single library libstuff. On Thu, Jun 15, 2017 at 10:19 PM, Pawel Veselov <pawel. May 26, 2011 · 4. This would be something like: ADD_LIBRARY(merged STATIC dummy. a library using ar utility: it refuses to generate index. If it is true, then the default library type is SHARED. There are, however, others interested in this behavior. That way cmake will build the external lib as a subfolder ("subproject"). So what I have in cmake at the moment for the shared library is: add_library(wittyPlus SHARED empty. A combined library must be created, which on Linux can be done with ar. lib /NOLOGO z. cmake from the build directory suffices. h, mod. obj. Aug 1, 2016 · Yes, target_link_libraries is a correct way to set linker flags or linker options. qy zx qs ia qq ao uo cc lw vf