mirror of https://gitee.com/openkylin/wget.git
151 lines
6.2 KiB
Plaintext
151 lines
6.2 KiB
Plaintext
|
# libunistring.m4 serial 11
|
||
|
|
dnl Copyright (C) 2009-2019 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.
|
||
|
|
|
||
|
|
dnl gl_LIBUNISTRING
|
||
|
|
dnl Searches for an installed libunistring.
|
||
|
|
dnl If found, it sets and AC_SUBSTs HAVE_LIBUNISTRING=yes and the LIBUNISTRING
|
||
|
|
dnl and LTLIBUNISTRING variables, sets the LIBUNISTRING_VERSION variable, and
|
||
|
|
dnl augments the CPPFLAGS variable, and #defines HAVE_LIBUNISTRING to 1.
|
||
|
|
dnl Otherwise, it sets and AC_SUBSTs HAVE_LIBUNISTRING=no and LIBUNISTRING and
|
||
|
|
dnl LTLIBUNISTRING to empty.
|
||
|
|
|
||
|
|
dnl Define gl_LIBUNISTRING using AC_DEFUN_ONCE for Autoconf >= 2.64, in order
|
||
|
|
dnl to avoid warnings like
|
||
|
|
dnl "warning: AC_REQUIRE: `gl_LIBUNISTRING' was expanded before it was required".
|
||
|
|
dnl This is tricky because of the way 'aclocal' is implemented:
|
||
|
|
dnl - It requires defining an auxiliary macro whose name ends in AC_DEFUN.
|
||
|
|
dnl Otherwise aclocal's initial scan pass would miss the macro definition.
|
||
|
|
dnl - It requires a line break inside the AC_DEFUN_ONCE and AC_DEFUN expansions.
|
||
|
|
dnl Otherwise aclocal would emit many "Use of uninitialized value $1"
|
||
|
|
dnl warnings.
|
||
|
|
m4_define([gl_libunistring_AC_DEFUN],
|
||
|
|
m4_version_prereq([2.64],
|
||
|
|
[[AC_DEFUN_ONCE(
|
||
|
|
[$1], [$2])]],
|
||
|
|
[m4_ifdef([gl_00GNULIB],
|
||
|
|
[[AC_DEFUN_ONCE(
|
||
|
|
[$1], [$2])]],
|
||
|
|
[[AC_DEFUN(
|
||
|
|
[$1], [$2])]])]))
|
||
|
|
gl_libunistring_AC_DEFUN([gl_LIBUNISTRING],
|
||
|
|
[
|
||
|
|
AC_BEFORE([$0], [gl_LIBUNISTRING_MODULE])
|
||
|
|
AC_BEFORE([$0], [gl_LIBUNISTRING_LIBHEADER])
|
||
|
|
AC_BEFORE([$0], [gl_LIBUNISTRING_LIB_PREPARE])
|
||
|
|
|
||
|
|
m4_ifdef([gl_LIBUNISTRING_OPTIONAL],
|
||
|
|
[
|
||
|
|
AC_MSG_CHECKING([whether included libunistring is requested])
|
||
|
|
AC_ARG_WITH([included-libunistring],
|
||
|
|
[ --with-included-libunistring use the libunistring parts included here],
|
||
|
|
[gl_libunistring_force_included=$withval],
|
||
|
|
[gl_libunistring_force_included=no])
|
||
|
|
AC_MSG_RESULT([$gl_libunistring_force_included])
|
||
|
|
gl_libunistring_use_included="$gl_libunistring_force_included"
|
||
|
|
if test "$gl_libunistring_use_included" = yes; then
|
||
|
|
dnl Assume that libunistring is not installed until some other macro
|
||
|
|
dnl explicitly invokes gl_LIBUNISTRING_CORE.
|
||
|
|
if test -z "$HAVE_LIBUNISTRING"; then
|
||
|
|
HAVE_LIBUNISTRING=no
|
||
|
|
fi
|
||
|
|
LIBUNISTRING=
|
||
|
|
LTLIBUNISTRING=
|
||
|
|
else
|
||
|
|
gl_LIBUNISTRING_CORE
|
||
|
|
if test $HAVE_LIBUNISTRING = no; then
|
||
|
|
gl_libunistring_use_included=yes
|
||
|
|
LIBUNISTRING=
|
||
|
|
LTLIBUNISTRING=
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
],
|
||
|
|
[gl_LIBUNISTRING_CORE])
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([gl_LIBUNISTRING_CORE],
|
||
|
|
[
|
||
|
|
AC_REQUIRE([AM_ICONV])
|
||
|
|
if test -n "$LIBICONV"; then
|
||
|
|
dnl First, try to link without -liconv. libunistring often depends on
|
||
|
|
dnl libiconv, but we don't know (and often don't need to know) where
|
||
|
|
dnl libiconv is installed.
|
||
|
|
AC_LIB_HAVE_LINKFLAGS([unistring], [],
|
||
|
|
[#include <uniconv.h>], [u8_strconv_from_locale((char*)0);],
|
||
|
|
[no, trying again together with libiconv])
|
||
|
|
if test "$ac_cv_libunistring" != yes; then
|
||
|
|
dnl Second try, with -liconv.
|
||
|
|
dnl We have to erase the cached result of the first AC_LIB_HAVE_LINKFLAGS
|
||
|
|
dnl invocation, otherwise the second one will not be run.
|
||
|
|
unset ac_cv_libunistring
|
||
|
|
glus_save_LIBS="$LIBS"
|
||
|
|
LIBS="$LIBS $LIBICONV"
|
||
|
|
AC_LIB_HAVE_LINKFLAGS([unistring], [],
|
||
|
|
[#include <uniconv.h>], [u8_strconv_from_locale((char*)0);],
|
||
|
|
[no, consider installing GNU libunistring])
|
||
|
|
if test -n "$LIBUNISTRING"; then
|
||
|
|
LIBUNISTRING="$LIBUNISTRING $LIBICONV"
|
||
|
|
LTLIBUNISTRING="$LTLIBUNISTRING $LTLIBICONV"
|
||
|
|
fi
|
||
|
|
LIBS="$glus_save_LIBS"
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
AC_LIB_HAVE_LINKFLAGS([unistring], [],
|
||
|
|
[#include <uniconv.h>], [u8_strconv_from_locale((char*)0);],
|
||
|
|
[no, consider installing GNU libunistring])
|
||
|
|
fi
|
||
|
|
if test $HAVE_LIBUNISTRING = yes; then
|
||
|
|
dnl Determine the installed version.
|
||
|
|
AC_CACHE_CHECK([for libunistring version], [gl_cv_libunistring_version],
|
||
|
|
[AC_COMPUTE_INT([gl_libunistring_hexversion],
|
||
|
|
[_LIBUNISTRING_VERSION],
|
||
|
|
[#include <unistring/version.h>])
|
||
|
|
dnl Versions <= 0.9.3 had a hexversion of 0x0009.
|
||
|
|
dnl Use other tests to distinguish them.
|
||
|
|
if test $gl_libunistring_hexversion = 9; then
|
||
|
|
dnl Version 0.9.2 introduced the header <unistring/cdefs.h>.
|
||
|
|
AC_COMPILE_IFELSE(
|
||
|
|
[AC_LANG_PROGRAM([[#include <unistring/cdefs.h>]], [[]])],
|
||
|
|
[gl_cv_libunistring_version092=true],
|
||
|
|
[gl_cv_libunistring_version092=false])
|
||
|
|
if $gl_cv_libunistring_version092; then
|
||
|
|
dnl Version 0.9.3 changed a comment in <unistr.h>.
|
||
|
|
gl_ABSOLUTE_HEADER_ONE([unistr.h])
|
||
|
|
if test -n "$gl_cv_absolute_unistr_h" \
|
||
|
|
&& grep 'Copy no more than N units of SRC to DEST. Return a pointer' $gl_cv_absolute_unistr_h > /dev/null; then
|
||
|
|
dnl Detected version 0.9.3.
|
||
|
|
gl_libunistring_hexversion=2307
|
||
|
|
else
|
||
|
|
dnl Detected version 0.9.2.
|
||
|
|
gl_libunistring_hexversion=2306
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
dnl Version 0.9.1 introduced the type casing_suffix_context_t.
|
||
|
|
AC_COMPILE_IFELSE(
|
||
|
|
[AC_LANG_PROGRAM(
|
||
|
|
[[#include <unicase.h>
|
||
|
|
casing_suffix_context_t ct;]],
|
||
|
|
[[]])],
|
||
|
|
[gl_cv_libunistring_version091=true],
|
||
|
|
[gl_cv_libunistring_version091=false])
|
||
|
|
if $gl_cv_libunistring_version091; then
|
||
|
|
dnl Detected version 0.9.1.
|
||
|
|
gl_libunistring_hexversion=2305
|
||
|
|
else
|
||
|
|
dnl Detected version 0.9.
|
||
|
|
gl_libunistring_hexversion=2304
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
dnl Transform into the usual major.minor.subminor notation.
|
||
|
|
gl_libunistring_major=`expr $gl_libunistring_hexversion / 65536`
|
||
|
|
gl_libunistring_minor=`expr $gl_libunistring_hexversion / 256 % 256`
|
||
|
|
gl_libunistring_subminor=`expr $gl_libunistring_hexversion % 256`
|
||
|
|
gl_cv_libunistring_version="$gl_libunistring_major.$gl_libunistring_minor.$gl_libunistring_subminor"
|
||
|
|
])
|
||
|
|
LIBUNISTRING_VERSION="$gl_cv_libunistring_version"
|
||
|
|
fi
|
||
|
|
])
|