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# Link with GNU libidn
#
# SPDX-FileCopyrightText: Copyright 2021-2023 Markus Uhlin
# SPDX-License-Identifier: BSD-3-Clause
link_with_gnu_libidn () {
local _tmpfile _srcfile _out _libs
printf "creating temp file..."
_tmpfile=$(mktemp) || { echo "error"; exit 1; }
echo "ok"
_srcfile="${_tmpfile}.c"
_out="${_tmpfile}.out"
_libs="-lidn"
cat <<EOF >"$_srcfile"
#include <idn-free.h>
#include <stdio.h>
#include <stringprep.h>
int
main(void)
{
const char *cp;
idn_free(NULL);
if ((cp = stringprep_check_version(NULL)) != NULL)
puts(cp);
return 0;
}
EOF
if [ ! -f "$_srcfile" ]; then
echo "failed to create $_srcfile"
exit 1
fi
printf "checking for gnu libidn..."
${CC} ${CFLAGS} -Werror "$_srcfile" -o "$_out" ${LDFLAGS} ${_libs} \
>/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "yes"
cat <<EOF >>$MAKE_DEF_FILE
CPPFLAGS += -DHAVE_LIBIDN=1
LDLIBS += ${_libs}
EOF
else
echo "no"
fi
echo "cleaning..."
test -f "$_tmpfile" && rm -f "$_tmpfile"
test -f "$_srcfile" && rm -f "$_srcfile"
test -f "$_out" && rm -f "$_out"
}
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