view m4/ffs.m4 @ 40163:b89f4c441767

Avoid build errors due to wrong references between modules. * lib/uninorm/canonical-decomposition.c: Include "uninorm/decomposition-table.h", not "decomposition-table.h". * lib/uninorm/decomposition.c: Likewise. * lib/uninorm/u8-normalize.c: Include "uninorm/decompose-internal.h", not "decompose-internal.h". * lib/uninorm/u16-normalize.c: Likewise. * lib/uninorm/u32-normalize.c: Likewise. * lib/uninorm/uninorm-filter.c: Likewise. * lib/uninorm/nfkc.c: Likewise. * lib/uninorm/nfkd.c: Likewise. * lib/unicase/u8-casemap.c: Include "unicase/caseprop.h", not "caseprop.h". * lib/unicase/u8-ct-totitle.c: Likewise. * lib/unicase/u8-prefix-context.c: Likewise. * lib/unicase/u8-suffix-context.c: Likewise. * lib/unicase/u16-casemap.c: Likewise. * lib/unicase/u16-ct-totitle.c: Likewise. * lib/unicase/u16-prefix-context.c: Likewise. * lib/unicase/u16-suffix-context.c: Likewise. * lib/unicase/u32-casemap.c: Likewise. * lib/unicase/u32-ct-totitle.c: Likewise. * lib/unicase/u32-prefix-context.c: Likewise. * lib/unicase/u32-suffix-context.c: Likewise. * lib/unicase/u8-tolower.c: Include "unicase/unicasemap.h", not "unicasemap.h". * lib/unicase/u8-toupper.c: Likewise. * lib/unicase/u8-ct-tolower.c: Likewise. * lib/unicase/u8-ct-toupper.c: Likewise. * lib/unicase/u16-tolower.c: Likewise. * lib/unicase/u16-toupper.c: Likewise. * lib/unicase/u16-ct-tolower.c: Likewise. * lib/unicase/u16-ct-toupper.c: Likewise. * lib/unicase/u32-tolower.c: Likewise. * lib/unicase/u32-toupper.c: Likewise. * lib/unicase/u32-ct-tolower.c: Likewise. * lib/unicase/u32-ct-toupper.c: Likewise. * lib/unicase/u8-ct-casefold.c: Include "unicase/unicasemap.h", not "unicasemap.h", and "unicase/casefold.h", not "casefold.h". * lib/unicase/u16-ct-casefold.c: Likewise. * lib/unicase/u32-ct-casefold.c: Likewise.
author Bruno Haible <bruno@clisp.org>
date Mon, 28 Jan 2019 01:20:11 +0100
parents b06060465f09
children
line wrap: on
line source

# ffs.m4 serial 4
dnl Copyright (C) 2011-2019 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_FFS],
[
  AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS])

  dnl We can't use AC_CHECK_FUNC here, because ffs() is defined as a
  dnl static inline function when compiling for Android 4.2 or older.
  dnl But require that ffs() is declared; otherwise we may be using
  dnl the GCC built-in function, which leads to warnings
  dnl "warning: implicit declaration of function 'ffs'".
  AC_CACHE_CHECK([for ffs], [gl_cv_func_ffs],
    [AC_LINK_IFELSE(
       [AC_LANG_PROGRAM(
          [[#include <strings.h>
            int x;
          ]],
          [[int (*func) (int) = ffs;
            return func (x);
          ]])
       ],
       [gl_cv_func_ffs=yes],
       [gl_cv_func_ffs=no])
    ])
  if test $gl_cv_func_ffs = no; then
    HAVE_FFS=0
  fi
])