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| <div class="section" id="cmakeforcecompiler"> |
| <span id="module:CMakeForceCompiler"></span><h1>CMakeForceCompiler<a class="headerlink" href="#cmakeforcecompiler" title="Permalink to this headline">ΒΆ</a></h1> |
| <div class="deprecated"> |
| <p><span class="versionmodified deprecated">Deprecated since version 3.6: </span>Do not use.</p> |
| </div> |
| <p>The macros provided by this module were once intended for use by |
| cross-compiling toolchain files when CMake was not able to automatically |
| detect the compiler identification. Since the introduction of this module, |
| CMake's compiler identification capabilities have improved and can now be |
| taught to recognize any compiler. Furthermore, the suite of information |
| CMake detects from a compiler is now too extensive to be provided by |
| toolchain files using these macros.</p> |
| <p>One common use case for this module was to skip CMake's checks for a |
| working compiler when using a cross-compiler that cannot link binaries |
| without special flags or custom linker scripts. This case is now supported |
| by setting the <span class="target" id="index-0-variable:CMAKE_TRY_COMPILE_TARGET_TYPE"></span><a class="reference internal" href="../variable/CMAKE_TRY_COMPILE_TARGET_TYPE.html#variable:CMAKE_TRY_COMPILE_TARGET_TYPE" title="CMAKE_TRY_COMPILE_TARGET_TYPE"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_TRY_COMPILE_TARGET_TYPE</span></code></a> variable in the |
| toolchain file instead.</p> |
| <hr class="docutils" /> |
| <p>Macro <code class="docutils literal notranslate"><span class="pre">CMAKE_FORCE_C_COMPILER</span></code> has the following signature:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>CMAKE_FORCE_C_COMPILER(<compiler> <compiler-id>) |
| </pre></div> |
| </div> |
| <p>It sets <span class="target" id="index-0-variable:CMAKE_<LANG>_COMPILER"></span><a class="reference internal" href="../variable/CMAKE_LANG_COMPILER.html#variable:CMAKE_<LANG>_COMPILER" title="CMAKE_<LANG>_COMPILER"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_C_COMPILER</span></code></a> to |
| the given compiler and the cmake internal variable |
| <span class="target" id="index-0-variable:CMAKE_<LANG>_COMPILER_ID"></span><a class="reference internal" href="../variable/CMAKE_LANG_COMPILER_ID.html#variable:CMAKE_<LANG>_COMPILER_ID" title="CMAKE_<LANG>_COMPILER_ID"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_C_COMPILER_ID</span></code></a> to the given |
| compiler-id. It also bypasses the check for working compiler and basic |
| compiler information tests.</p> |
| <p>Macro <code class="docutils literal notranslate"><span class="pre">CMAKE_FORCE_CXX_COMPILER</span></code> has the following signature:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>CMAKE_FORCE_CXX_COMPILER(<compiler> <compiler-id>) |
| </pre></div> |
| </div> |
| <p>It sets <span class="target" id="index-1-variable:CMAKE_<LANG>_COMPILER"></span><a class="reference internal" href="../variable/CMAKE_LANG_COMPILER.html#variable:CMAKE_<LANG>_COMPILER" title="CMAKE_<LANG>_COMPILER"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_CXX_COMPILER</span></code></a> to |
| the given compiler and the cmake internal variable |
| <span class="target" id="index-1-variable:CMAKE_<LANG>_COMPILER_ID"></span><a class="reference internal" href="../variable/CMAKE_LANG_COMPILER_ID.html#variable:CMAKE_<LANG>_COMPILER_ID" title="CMAKE_<LANG>_COMPILER_ID"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_CXX_COMPILER_ID</span></code></a> to the given |
| compiler-id. It also bypasses the check for working compiler and basic |
| compiler information tests.</p> |
| <p>Macro <code class="docutils literal notranslate"><span class="pre">CMAKE_FORCE_Fortran_COMPILER</span></code> has the following signature:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>CMAKE_FORCE_Fortran_COMPILER(<compiler> <compiler-id>) |
| </pre></div> |
| </div> |
| <p>It sets <span class="target" id="index-2-variable:CMAKE_<LANG>_COMPILER"></span><a class="reference internal" href="../variable/CMAKE_LANG_COMPILER.html#variable:CMAKE_<LANG>_COMPILER" title="CMAKE_<LANG>_COMPILER"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_Fortran_COMPILER</span></code></a> to |
| the given compiler and the cmake internal variable |
| <span class="target" id="index-2-variable:CMAKE_<LANG>_COMPILER_ID"></span><a class="reference internal" href="../variable/CMAKE_LANG_COMPILER_ID.html#variable:CMAKE_<LANG>_COMPILER_ID" title="CMAKE_<LANG>_COMPILER_ID"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_Fortran_COMPILER_ID</span></code></a> to the given |
| compiler-id. It also bypasses the check for working compiler and basic |
| compiler information tests.</p> |
| <p>So a simple toolchain file could look like this:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>include (CMakeForceCompiler) |
| set(CMAKE_SYSTEM_NAME Generic) |
| CMAKE_FORCE_C_COMPILER (chc12 MetrowerksHicross) |
| CMAKE_FORCE_CXX_COMPILER (chc12 MetrowerksHicross) |
| </pre></div> |
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