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0032921: Configuration, CMake - allow selecting C++ standard.

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Make C++ standard to be enable from cmake settings:

User will be able choosing C++ language standard by selecting cmake variable BUILD_CPP_STANDARD.
For correct working, CMAKE_CXX_STANDARD cmake built-in variable should be available.
To enable CMAKE_CXX_STANDARD, minimum CMAKE version has been updated to 3.1.

Available next standard items:
C++11
C++14
C++17
C++20
C++23

This issue consists from several steps to achive main goal:
1) Configuratiuon, CMake - allow selecting C++ standard.
2) Require minimum CMAKE version 3.1 (for enabling CMAKE_CXX_STANDARD).
3) More flexible CMAKE_CXX_COMPILER_ID identification (fixups previous commit!)
4) Add description of new CMAKE variable `BUILD_CPP_STANDARD` into documentation.
5) Update CMAKE requirements in documentation.
6) Set C++11 standard for several projects.
This commit is contained in:
ddzama
2022-05-04 12:57:51 +03:00
committed by smoskvin
parent b71cb85f67
commit e92d322d40
28 changed files with 143 additions and 50 deletions
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3
dox/build/build_occt/building_occt.md
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@@ -17,7 +17,7 @@ On Linux and macOS we recommend to use libraries maintained by distributive deve
@section build_occt_win_cmake Building with CMake tool
This chapter describes the [CMake](https://cmake.org/download/)-based build process, which is now suggested as a standard way to produce the binaries of Open CASCADE Technology from sources.
OCCT requires CMake version 2.8.12 or later.
OCCT requires CMake version 3.1 or later.
CMake is a tool that generates the actual project files for the selected target build system (e.g. Unix makefiles) or IDE (e.g. Visual Studio 2010).
Here we describe the build procedure on the example of Windows platform with Visual Studio 2010.
@@ -113,6 +113,7 @@ The following table gives the full list of environment variables used at the con
| BUILD_PATCH | Path | Points to the directory recognized as a "patch" for OCCT. If specified, the files from this directory take precedence over the corresponding native OCCT sources. This way you are able to introduce patches to Open CASCADE Technology not affecting the original source distribution |
| BUILD_WITH_DEBUG | Boolean | Enables extended messages of many OCCT algorithms, usually printed to cout. These include messages on internal errors and special cases encountered, timing, etc. |
| BUILD_ENABLE_FPE_SIGNAL_HANDLER | Boolean | Enable/Disable the floating point exceptions (FPE) during DRAW execution only. Corresponding environment variable (CSF_FPE) can be changed manually in custom.bat/sh scripts without regeneration by CMake. |
| BUILD_CPP_STANDARD | String | Employ corresponding c++ standard (C++11, C++14, ..C++23) for building OCCT |
| CMAKE_CONFIGURATION_TYPES | String | Semicolon-separated CMake configurations |
| INSTALL_DIR | Path | Points to the installation directory. *INSTALL_DIR* is a synonym of *CMAKE_INSTALL_PREFIX*. The user can specify both *INSTALL_DIR* or *CMAKE_INSTALL_PREFIX* |
| INSTALL_DIR_BIN | Path | Relative path to the binaries installation directory (absolute path is ${INSTALL_DIR}/${INSTALL_DIR_BIN}) |