https://github.com/Kitware/CMake
Revision 3a7d1e9592af743a6bb538111e603d7f10666e0c authored by Gregor Jasny on 21 April 2020, 14:34:57 UTC, committed by Brad King on 21 April 2020, 15:18:12 UTC
Since commit a9b41195d2 (Handle multi-arch sysroots on Apple platforms,
2019-07-26, v3.17.0-rc1~287^2), CMake supports "fat" builds with
different sysroots. Those are passed to the compiler with the
`-Xarch_<xyz>` parameter.

Unfortunately this breaks the Compiler Cache (ccache) because
it does not support those compiler flags:

    https://github.com/ccache/ccache/blob/v3.7.9/src/ccache.c#L2700-L2705

Restore the caching ability for certain "fat" build configurations (e.g.
`arm64` and `armv7`) where the sysroot is the same for all selected
architectures and thus a plain `-isysroot` parameter could be used.
1 parent be88264
Raw File
Tip revision: 3a7d1e9592af743a6bb538111e603d7f10666e0c authored by Gregor Jasny on 21 April 2020, 14:34:57 UTC
Apple: Merge per-arch sysroot parameters if all are the same
Tip revision: 3a7d1e9
cmLocalVisualStudioGenerator.h
/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#ifndef cmLocalVisualStudioGenerator_h
#define cmLocalVisualStudioGenerator_h

#include "cmConfigure.h" // IWYU pragma: keep

#include <map>
#include <memory>
#include <string>

#include "cmGlobalVisualStudioGenerator.h"
#include "cmLocalGenerator.h"

class cmCustomCommand;
class cmCustomCommandGenerator;
class cmGeneratorTarget;
class cmGlobalGenerator;
class cmMakefile;
class cmSourceFile;

/** \class cmLocalVisualStudioGenerator
 * \brief Base class for Visual Studio generators.
 *
 * cmLocalVisualStudioGenerator provides functionality common to all
 * Visual Studio generators.
 */
class cmLocalVisualStudioGenerator : public cmLocalGenerator
{
public:
  cmLocalVisualStudioGenerator(cmGlobalGenerator* gg, cmMakefile* mf);
  virtual ~cmLocalVisualStudioGenerator();

  /** Construct a script from the given list of command lines.  */
  std::string ConstructScript(cmCustomCommandGenerator const& ccg,
                              const std::string& newline = "\n");

  /** Label to which to jump in a batch file after a failed step in a
      sequence of custom commands. */
  const char* GetReportErrorLabel() const;

  cmGlobalVisualStudioGenerator::VSVersion GetVersion() const;

  virtual std::string ComputeLongestObjectDirectory(
    cmGeneratorTarget const*) const = 0;

  void ComputeObjectFilenames(
    std::map<cmSourceFile const*, std::string>& mapping,
    cmGeneratorTarget const* = 0) override;

protected:
  virtual const char* ReportErrorLabel() const;
  virtual bool CustomCommandUseLocal() const { return false; }

  /** Construct a custom command to make exe import lib dir.  */
  std::unique_ptr<cmCustomCommand> MaybeCreateImplibDir(
    cmGeneratorTarget* target, const std::string& config, bool isFortran);
};

#endif
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