mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-27 03:36:39 +00:00
68 lines
1.9 KiB
Plaintext
68 lines
1.9 KiB
Plaintext
|
#serial 1
|
||
|
|
|
||
|
|
AC_PREREQ(2.50)
|
||
|
|
|
||
|
|
# The EILSEQ errno value ought to be defined in <errno.h>, according to
|
||
|
|
# ISO C 99 and POSIX. But some systems (like SunOS 4) don't define it,
|
||
|
|
# and some systems (like BSD/OS) define it in <wchar.h> not <errno.h>.
|
||
|
|
|
||
|
|
# Define EILSEQ as a C macro and as a substituted macro in such a way that
|
||
|
|
# 1. on all systems, after inclusion of <errno.h>, EILSEQ is usable,
|
||
|
|
# 2. on systems where EILSEQ is defined elsewhere, we use the same numeric
|
||
|
|
# value.
|
||
|
|
|
||
|
|
AC_DEFUN([AC_EILSEQ],
|
||
|
|
[
|
||
|
|
AC_REQUIRE([AC_PROG_CC])dnl
|
||
|
|
|
||
|
|
dnl Check for any extra headers that could define EILSEQ.
|
||
|
|
AC_CHECK_HEADERS(wchar.h)
|
||
|
|
|
||
|
|
AC_CACHE_CHECK([for EILSEQ], ac_cv_decl_EILSEQ, [
|
||
|
|
AC_EGREP_CPP(yes,[
|
||
|
|
#include <errno.h>
|
||
|
|
#ifdef EILSEQ
|
||
|
|
yes
|
||
|
|
#endif
|
||
|
|
], have_eilseq=1)
|
||
|
|
if test -n "$have_eilseq"; then
|
||
|
|
dnl EILSEQ exists in <errno.h>. Don't need to define EILSEQ ourselves.
|
||
|
|
ac_cv_decl_EILSEQ=yes
|
||
|
|
else
|
||
|
|
AC_EGREP_CPP(yes,[
|
||
|
|
#include <errno.h>
|
||
|
|
#if HAVE_WCHAR_H
|
||
|
|
#include <wchar.h>
|
||
|
|
#endif
|
||
|
|
#ifdef EILSEQ
|
||
|
|
yes
|
||
|
|
#endif
|
||
|
|
], have_eilseq=1)
|
||
|
|
if test -n "$have_eilseq"; then
|
||
|
|
dnl EILSEQ exists in some other system header.
|
||
|
|
dnl Define it to the same value.
|
||
|
|
_AC_COMPUTE_INT([EILSEQ], ac_cv_decl_EILSEQ, [
|
||
|
|
#include <errno.h>
|
||
|
|
#if HAVE_WCHAR_H
|
||
|
|
#include <wchar.h>
|
||
|
|
#endif
|
||
|
|
/* The following two lines are a workaround against an autoconf-2.52 bug. */
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
])
|
||
|
|
else
|
||
|
|
dnl EILSEQ isn't defined by the system. Define EILSEQ ourselves, but
|
||
|
|
dnl don't define it as EINVAL, because iconv() callers want to
|
||
|
|
dnl distinguish EINVAL and EILSEQ.
|
||
|
|
ac_cv_decl_EILSEQ=ENOENT
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
])
|
||
|
|
if test "$ac_cv_decl_EILSEQ" != yes; then
|
||
|
|
AC_DEFINE_UNQUOTED([EILSEQ], [$ac_cv_decl_EILSEQ],
|
||
|
|
[Define as good substitute value for EILSEQ.])
|
||
|
|
EILSEQ="$ac_cv_decl_EILSEQ"
|
||
|
|
AC_SUBST(EILSEQ)
|
||
|
|
fi
|
||
|
|
])
|