gnulib/import/m4/__inline.m4

   1 # Test for __inline keyword
   2 dnl Copyright 2017-2019 Free Software Foundation, Inc.
   3 dnl This file is free software; the Free Software Foundation
   4 dnl gives unlimited permission to copy and/or distribute it,
   5 dnl with or without modifications, as long as this notice is preserved.
   6
   7 AC_DEFUN([gl___INLINE],
   8 [
   9   AC_CACHE_CHECK([whether the compiler supports the __inline keyword],
  10     [gl_cv_c___inline],
  11     [AC_COMPILE_IFELSE(
  12        [AC_LANG_PROGRAM(
  13          [[typedef int foo_t;
  14            static __inline foo_t foo (void) { return 0; }]],
  15          [[return foo ();]])],
  16        [gl_cv_c___inline=yes],
  17        [gl_cv_c___inline=no])])
  18   if test $gl_cv_c___inline = yes; then
  19     AC_DEFINE([HAVE___INLINE], [1],
  20       [Define to 1 if the compiler supports the keyword '__inline'.])
  21   fi
  22 ])