kc3-lang/libjpeg-turbo/jconfigint.h.in

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• Hash : 9df5786f
  Author :
  Date : 2021-06-26T16:22:21
  

  Fix -Wimplicit-fallthrough warnings with Clang
  
  The existing /*FALLTHROUGH*/ comments work with GCC but not Clang, so
  this commit adds a FALLTHROUGH macro that uses the 'fallthrough'
  attribute if the compiler supports it.
  
  Refer to https://bugs.chromium.org/p/chromium/issues/detail?id=995993
  
  NOTE: All versions of GCC that support -Wimplicit-fallthrough also
  support the 'fallthrough' attribute, but certain other compilers (Oracle
  Solaris Studio, for instance) support /*FALLTHROUGH*/ but not the
  'fallthrough' attribute.  Thus, this commit retains the /*FALLTHROUGH*/
  comments, which have existed in the libjpeg code base in some form since
  1994 (libjpeg v5.)
  
  Closes #531
  

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• jconfigint.h.in

• /* libjpeg-turbo build number */
  #define BUILD  "@BUILD@"
  
  /* Compiler's inline keyword */
  #undef inline
  
  /* How to obtain function inlining. */
  #define INLINE  @INLINE@
  
  /* How to obtain thread-local storage */
  #define THREAD_LOCAL  @THREAD_LOCAL@
  
  /* Define to the full name of this package. */
  #define PACKAGE_NAME  "@CMAKE_PROJECT_NAME@"
  
  /* Version number of package */
  #define VERSION  "@VERSION@"
  
  /* The size of `size_t', as computed by sizeof. */
  #define SIZEOF_SIZE_T  @SIZE_T@
  
  /* Define if your compiler has __builtin_ctzl() and sizeof(unsigned long) == sizeof(size_t). */
  #cmakedefine HAVE_BUILTIN_CTZL
  
  /* Define to 1 if you have the <intrin.h> header file. */
  #cmakedefine HAVE_INTRIN_H
  
  #if defined(_MSC_VER) && defined(HAVE_INTRIN_H)
  #if (SIZEOF_SIZE_T == 8)
  #define HAVE_BITSCANFORWARD64
  #elif (SIZEOF_SIZE_T == 4)
  #define HAVE_BITSCANFORWARD
  #endif
  #endif
  
  #if defined(__has_attribute)
  #if __has_attribute(fallthrough)
  #define FALLTHROUGH  __attribute__((fallthrough));
  #else
  #define FALLTHROUGH
  #endif
  #else
  #define FALLTHROUGH
  #endif
  

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