kc3-lang/gnulib/m4/ffsl.m4

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• Hash : b744688d
  Author :
  Date : 2024-04-04T11:16:15
  

  Make the serial numbers in *.m4 files effective.
  
  Reported by Sam James in
  <https://lists.gnu.org/archive/html/bug-gnulib/2024-04/msg00051.html>.
  
  * m4/*.m4: Apply sed -e '1s|^# \(.*[.]m4\) serial |# \1\n# serial |'.
  

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• m4/ffsl.m4

• # ffsl.m4
  # serial 3
  dnl Copyright (C) 2011-2024 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.
  
  AC_DEFUN([gl_FUNC_FFSL],
  [
    AC_REQUIRE([gl_STRING_H_DEFAULTS])
  
    dnl Persuade glibc <string.h> to declare ffsl().
    AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
  
    dnl We can't use AC_CHECK_FUNC here, because ffsl() is defined as a
    dnl static inline function when compiling for Android 13 or older.
    dnl But require that ffsl() is declared; otherwise we may be using
    dnl the GCC built-in function, which leads to warnings
    dnl "warning: implicit declaration of function 'ffsl'".
    AC_CACHE_CHECK([for ffsl], [gl_cv_func_ffsl],
      [AC_LINK_IFELSE(
         [AC_LANG_PROGRAM(
            [[#include <string.h>
              #include <strings.h>
              long x;
            ]],
            [[int (*func) (long) = ffsl;
              return func (x);
            ]])
         ],
         [gl_cv_func_ffsl=yes],
         [gl_cv_func_ffsl=no])
      ])
    if test $gl_cv_func_ffsl = no; then
      HAVE_FFSL=0
    fi
  ])
  

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