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progreloc: Speed up executable lookup on various platforms. * lib/progreloc.c: Include <errno.h>. (safe_read, full_read): New functions. (find_executable): On GNU/kFreeBSD, FreeBSD, DragonFly, NetBSD, Solaris, prefer the information from the /proc file system to a PATH search.
author Bruno Haible <bruno@clisp.org>
date Tue, 19 Feb 2019 21:42:54 +0100
parents b06060465f09
children
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# rawmemchr.m4 serial 2
dnl Copyright (C) 2003, 2007-2019 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_RAWMEMCHR],
[
  dnl Persuade glibc <string.h> to declare rawmemchr().
  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])

  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
  AC_CHECK_FUNCS([rawmemchr])
  if test $ac_cv_func_rawmemchr = no; then
    HAVE_RAWMEMCHR=0
  fi
])

# Prerequisites of lib/strchrnul.c.
AC_DEFUN([gl_PREREQ_RAWMEMCHR], [:])