kc3-lang/gnulib/m4/inline.m4

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• Hash : 32a72f45
  Author :
  Date : 2023-01-01T01:14:21
  

  maint: run 'make update-copyright'
  

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• m4/inline.m4

• # inline.m4 serial 4
  dnl Copyright (C) 2006, 2009-2023 Free Software Foundation, Inc.
  dnl This file is free software; the Free Software Foundation
  dnl gives unlimited permission to copy and/or distribute it,
  dnl with or without modifications, as long as this notice is preserved.
  
  dnl Test for the 'inline' keyword or equivalent.
  dnl Define 'inline' to a supported equivalent, or to nothing if not supported,
  dnl like AC_C_INLINE does.  Also, define HAVE_INLINE if 'inline' or an
  dnl equivalent is effectively supported, i.e. if the compiler is likely to
  dnl drop unused 'static inline' functions.
  AC_DEFUN([gl_INLINE],
  [
    AC_REQUIRE([AC_C_INLINE])
    AC_CACHE_CHECK([whether the compiler generally respects inline],
      [gl_cv_c_inline_effective],
      [if test $ac_cv_c_inline = no; then
         gl_cv_c_inline_effective=no
       else
         dnl GCC defines __NO_INLINE__ if not optimizing or if -fno-inline is
         dnl specified.
         dnl Use AC_COMPILE_IFELSE here, not AC_EGREP_CPP, because the result
         dnl depends on optimization flags, which can be in CFLAGS.
         dnl (AC_EGREP_CPP looks only at the CPPFLAGS.)
         AC_COMPILE_IFELSE(
           [AC_LANG_PROGRAM([[]],
             [[#ifdef __NO_INLINE__
                 #error "inline is not effective"
               #endif]])],
           [gl_cv_c_inline_effective=yes],
           [gl_cv_c_inline_effective=no])
       fi
      ])
    if test $gl_cv_c_inline_effective = yes; then
      AC_DEFINE([HAVE_INLINE], [1],
        [Define to 1 if the compiler supports one of the keywords
         'inline', '__inline__', '__inline' and effectively inlines
         functions marked as such.])
    fi
  ])
  

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