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Nick TerrellandNick Terrell a0a9bc6c95 [cmake] Always create libzstd target

If both `ZSTD_BUILD_SHARED` and `ZSTD_BUILD_STATIC` are set, then cmake exports the libraries `libzstd_shared` and `libzstd_static` only.
It does not export `libzstd`, which is only exported when exactly one of `ZSTD_BUILD_SHARED` and `ZSTD_BUILD_STATIC` is set.
This PR exports `libzstd` in that case, based on the value of the standard CMake variable [`BUILD_SHARED_LIBS`](https://cmake.org/cmake/help/latest/variable/BUILD_SHARED_LIBS.html).
This ensures that `libzstd` can always be used to refer to the exported zstd library, since the build errors if neither `ZSTD_BUILD_SHARED` nor `ZSTD_BUILD_STATIC` are set.

I tested all the possible combinations of `ZSTD_BUILD_SHARED`, `ZSTD_BUILD_STATIC`, and `BUILD_SHARED_LIBS` and they always worked as expected:
* If only exactly one of `ZSTD_BUILD_SHARED` and `ZSTD_BUILD_STATIC` is set, that is used as `libzstd`.
* Otherwise, libzstd is set based on `BUILD_SHARED_LIBS`.

Fixes #3859.

2024-03-14 15:04:46 -04:00

cmake

[cmake] Always create libzstd target

2024-03-14 15:04:46 -04:00

meson

fix meson datagen build

2024-02-20 18:17:28 -08:00

single_file_libs

Coalesce Almost All Copyright Notices to Standard Phrasing

2022-12-20 12:52:34 -05:00

VS2008

fix Visual Studio solutions

2024-01-29 15:24:42 -08:00

VS2010

fix Visual Studio datagen recipe

2024-02-20 22:59:58 -08:00

VS_scripts

add msvc2019 to build.generic.cmd

2021-09-19 10:28:16 +08:00

.gitignore

fix gitignore errors

2019-07-09 21:08:13 +08:00

LICENSE

Add support for --output-dir-flat

2019-10-02 11:08:20 -04:00

README.md

added back documentation/notification for VS2005 in build directory

2017-06-02 10:25:30 -07:00

README.md

Projects for various integrated development environments (IDE)

Included projects

The following projects are included with the zstd distribution:

cmake - CMake project contributed by Artyom Dymchenko
VS2005 - Visual Studio 2005 Project (this project has been moved to the contrib directory and will no longer be supported)
VS2008 - Visual Studio 2008 project
VS2010 - Visual Studio 2010 project (which also works well with Visual Studio 2012, 2013, 2015)
VS_scripts - command line scripts prepared for Visual Studio compilation without IDE

How to compile zstd with Visual Studio

Install Visual Studio e.g. VS 2015 Community Edition (it's free).
Download the latest version of zstd from https://github.com/facebook/zstd/releases
Decompress ZIP archive.
Go to decompressed directory then to projects then VS2010 and open zstd.sln
Visual Studio will ask about converting VS2010 project to VS2015 and you should agree.
Change Debug to Release and if you have 64-bit Windows change also Win32 to x64.
Press F7 on keyboard or select BUILD from the menu bar and choose Build Solution.
If compilation will be fine a compiled executable will be in projects\VS2010\bin\x64\Release\zstd.exe

Projects available within zstd.sln

The Visual Studio solution file visual\VS2010\zstd.sln contains many projects that will be compiled to the visual\VS2010\bin\$(Platform)_$(Configuration) directory. For example zstd set to x64 and Release will be compiled to visual\VS2010\bin\x64_Release\zstd.exe. The solution file contains the following projects:

zstd : Command Line Utility, supporting gzip-like arguments
datagen : Synthetic and parametrable data generator, for tests
fullbench : Precisely measure speed for each zstd inner functions
fuzzer : Test tool, to check zstd integrity on target platform
libzstd : A static ZSTD library compiled to libzstd_static.lib
libzstd-dll : A dynamic ZSTD library (DLL) compiled to libzstd.dll with the import library libzstd.lib
fullbench-dll : The fullbench program compiled with the import library; the executable requires ZSTD DLL

Using ZSTD DLL with Microsoft Visual C++ project

The header file lib\zstd.h and the import library visual\VS2010\bin\$(Platform)_$(Configuration)\libzstd.lib are required to compile a project using Visual C++.

The path to header files should be added to Additional Include Directories that can be found in Project Properties of Visual Studio IDE in the C/C++ Property Pages on the General page.
The import library has to be added to Additional Dependencies that can be found in Project Properties in the Linker Property Pages on the Input page. If one will provide only the name libzstd.lib without a full path to the library then the directory has to be added to Linker\General\Additional Library Directories.

The compiled executable will require ZSTD DLL which is available at visual\VS2010\bin\$(Platform)_$(Configuration)\libzstd.dll.