Merge topic 'try_compile-target-type'
7f1bd9fe
try_compile: Add option to control type of target
This commit is contained in:
commit
79d4b5bec9
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@ -112,3 +112,6 @@ The current setting of :policy:`CMP0065` is set in the generated project.
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Set the :variable:`CMAKE_TRY_COMPILE_CONFIGURATION` variable to choose
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a build configuration.
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Set the :variable:`CMAKE_TRY_COMPILE_TARGET_TYPE` variable to specify
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the type of target used for the source file signature.
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@ -292,6 +292,7 @@ Variables that Control the Build
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/variable/CMAKE_STATIC_LINKER_FLAGS_CONFIG
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/variable/CMAKE_STATIC_LINKER_FLAGS
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/variable/CMAKE_TRY_COMPILE_CONFIGURATION
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/variable/CMAKE_TRY_COMPILE_TARGET_TYPE
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/variable/CMAKE_USE_RELATIVE_PATHS
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/variable/CMAKE_VISIBILITY_INLINES_HIDDEN
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/variable/CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD
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@ -0,0 +1,8 @@
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try_compile-target-type
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-----------------------
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* The :command:`try_compile` command learned to check a new
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:variable:`CMAKE_TRY_COMPILE_TARGET_TYPE` variable to optionally
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build a static library instead of an executable. This is useful
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for cross-compiling toolchains that cannot link binaries without
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custom flags or scripts.
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@ -0,0 +1,15 @@
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CMAKE_TRY_COMPILE_TARGET_TYPE
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-----------------------------
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Type of target generated for :command:`try_compile` calls using the
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source file signature. Valid values are:
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``EXECUTABLE``
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Use :command:`add_executable` to name the source file in the
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generated project. This is the default if no value is given.
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``STATIC_LIBRARY``
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Use :command:`add_library` with the ``STATIC`` option to name the
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source file in the generated project. This avoids running the
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linker and is intended for use with cross-compiling toolchains
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that cannot link without custom flags or linker scripts.
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@ -19,13 +19,42 @@
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#include <assert.h>
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int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
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int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv,
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bool isTryRun)
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{
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this->BinaryDirectory = argv[1].c_str();
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this->OutputFile = "";
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// which signature were we called with ?
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this->SrcFileSignature = true;
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cmState::TargetType targetType = cmState::EXECUTABLE;
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const char* tt =
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this->Makefile->GetDefinition("CMAKE_TRY_COMPILE_TARGET_TYPE");
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if (!isTryRun && tt && *tt)
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{
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if (strcmp(tt, cmState::GetTargetTypeName(cmState::EXECUTABLE)) == 0)
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{
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targetType = cmState::EXECUTABLE;
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}
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else if (strcmp(tt,
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cmState::GetTargetTypeName(cmState::STATIC_LIBRARY)) == 0)
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{
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targetType = cmState::STATIC_LIBRARY;
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}
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else
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{
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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std::string("Invalid value '") + tt + "' for "
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"CMAKE_TRY_COMPILE_TARGET_TYPE. Only "
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"'" + cmState::GetTargetTypeName(cmState::EXECUTABLE) + "' and "
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"'" + cmState::GetTargetTypeName(cmState::STATIC_LIBRARY) + "' "
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"are allowed."
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);
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return -1;
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}
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}
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const char* sourceDirectory = argv[2].c_str();
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const char* projectName = 0;
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std::string targetName;
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@ -486,11 +515,22 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
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fprintf(fout, "set(CMAKE_ENABLE_EXPORTS %s)\n", ee);
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}
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/* Put the executable at a known location (for COPY_FILE). */
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fprintf(fout, "set(CMAKE_RUNTIME_OUTPUT_DIRECTORY \"%s\")\n",
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this->BinaryDirectory.c_str());
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/* Create the actual executable. */
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fprintf(fout, "add_executable(%s", targetName.c_str());
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if (targetType == cmState::EXECUTABLE)
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{
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/* Put the executable at a known location (for COPY_FILE). */
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fprintf(fout, "set(CMAKE_RUNTIME_OUTPUT_DIRECTORY \"%s\")\n",
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this->BinaryDirectory.c_str());
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/* Create the actual executable. */
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fprintf(fout, "add_executable(%s", targetName.c_str());
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}
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else // if (targetType == cmState::STATIC_LIBRARY)
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{
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/* Put the static library at a known location (for COPY_FILE). */
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fprintf(fout, "set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY \"%s\")\n",
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this->BinaryDirectory.c_str());
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/* Create the actual static library. */
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fprintf(fout, "add_library(%s STATIC", targetName.c_str());
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}
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for(std::vector<std::string>::iterator si = sources.begin();
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si != sources.end(); ++si)
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{
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@ -549,7 +589,7 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
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if (this->SrcFileSignature)
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{
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std::string copyFileErrorMessage;
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this->FindOutputFile(targetName);
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this->FindOutputFile(targetName, targetType);
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if ((res==0) && !copyFile.empty())
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{
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@ -651,13 +691,26 @@ void cmCoreTryCompile::CleanupFiles(const char* binDir)
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}
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}
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void cmCoreTryCompile::FindOutputFile(const std::string& targetName)
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void cmCoreTryCompile::FindOutputFile(const std::string& targetName,
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cmState::TargetType targetType)
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{
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this->FindErrorMessage = "";
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this->OutputFile = "";
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std::string tmpOutputFile = "/";
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tmpOutputFile += targetName;
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tmpOutputFile +=this->Makefile->GetSafeDefinition("CMAKE_EXECUTABLE_SUFFIX");
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if (targetType == cmState::EXECUTABLE)
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{
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tmpOutputFile += targetName;
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tmpOutputFile +=
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this->Makefile->GetSafeDefinition("CMAKE_EXECUTABLE_SUFFIX");
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}
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else // if (targetType == cmState::STATIC_LIBRARY)
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{
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tmpOutputFile +=
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this->Makefile->GetSafeDefinition("CMAKE_STATIC_LIBRARY_PREFIX");
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tmpOutputFile += targetName;
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tmpOutputFile +=
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this->Makefile->GetSafeDefinition("CMAKE_STATIC_LIBRARY_SUFFIX");
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}
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// a list of directories where to search for the compilation result
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// at first directly in the binary dir
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@ -30,7 +30,7 @@ public:
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* commands, such as TryRun can access the same logic without
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* duplication.
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*/
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int TryCompileCode(std::vector<std::string> const& argv);
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int TryCompileCode(std::vector<std::string> const& argv, bool isTryRun);
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/**
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* This deletes all the files created by TryCompileCode.
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@ -44,8 +44,8 @@ public:
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TryCompileCode. The result is stored in OutputFile. If nothing is found,
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the error message is stored in FindErrorMessage.
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*/
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void FindOutputFile(const std::string& targetName);
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void FindOutputFile(const std::string& targetName,
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cmState::TargetType targetType);
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cmTypeMacro(cmCoreTryCompile, cmCommand);
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@ -28,7 +28,7 @@ bool cmTryCompileCommand
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return false;
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}
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this->TryCompileCode(argv);
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this->TryCompileCode(argv, false);
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// if They specified clean then we clean up what we can
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if (this->SrcFileSignature)
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@ -135,7 +135,7 @@ bool cmTryRunCommand
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this->CompileResultVariable = argv[1];
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// do the try compile
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int res = this->TryCompileCode(tryCompile);
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int res = this->TryCompileCode(tryCompile, true);
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// now try running the command if it compiled
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if (!res)
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@ -16,6 +16,10 @@ run_cmake(BadSources2)
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run_cmake(NonSourceCopyFile)
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run_cmake(NonSourceCompileDefinitions)
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run_cmake(TargetTypeExe)
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run_cmake(TargetTypeInvalid)
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run_cmake(TargetTypeStatic)
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run_cmake(CMP0056)
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if(RunCMake_GENERATOR MATCHES "Make|Ninja")
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@ -0,0 +1,14 @@
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enable_language(C)
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set(CMAKE_TRY_COMPILE_TARGET_TYPE EXECUTABLE)
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try_compile(result ${CMAKE_CURRENT_BINARY_DIR}
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SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src.c
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OUTPUT_VARIABLE out
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COPY_FILE ${CMAKE_CURRENT_BINARY_DIR}/copy
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COPY_FILE_ERROR copy_err
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)
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if(NOT result)
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message(FATAL_ERROR "try_compile failed:\n${out}")
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endif()
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if(copy_err)
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message(FATAL_ERROR "try_compile COPY_FILE failed:\n${copy_err}")
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endif()
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@ -0,0 +1 @@
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1
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@ -0,0 +1,5 @@
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^CMake Error at TargetTypeInvalid.cmake:2 \(try_compile\):
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Invalid value 'INVALID' for CMAKE_TRY_COMPILE_TARGET_TYPE. Only
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'EXECUTABLE' and 'STATIC_LIBRARY' are allowed.
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Call Stack \(most recent call first\):
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CMakeLists.txt:3 \(include\)
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@ -0,0 +1,2 @@
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set(CMAKE_TRY_COMPILE_TARGET_TYPE INVALID)
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try_compile(result ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/src.c)
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@ -0,0 +1,14 @@
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enable_language(C)
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set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
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try_compile(result ${CMAKE_CURRENT_BINARY_DIR}
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SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/other.c
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OUTPUT_VARIABLE out
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COPY_FILE ${CMAKE_CURRENT_BINARY_DIR}/copy
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COPY_FILE_ERROR copy_err
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)
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if(NOT result)
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message(FATAL_ERROR "try_compile failed:\n${out}")
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endif()
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if(copy_err)
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message(FATAL_ERROR "try_compile COPY_FILE failed:\n${copy_err}")
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endif()
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@ -0,0 +1 @@
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int other(void) { return 0; }
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