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#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

srctree=$(dirname "$0")

SHOW_ERROR=

if [ "$1" = "--show-error" ] ; then

SHOW_ERROR=1

shift || true

fi

gccplugins_dir=$($3 -print-file-name=plugin)

plugincc=$($1 -E -x c++ - -o /dev/null -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF

#include "gcc-common.h"

#if BUILDING_GCC_VERSION >= 4008 || defined(ENABLE_BUILD_WITH_CXX)

#warning $2 CXX

#else

#warning $1 CC

#endif

EOF

)

if [ $? -ne 0 ]

then

if [ -n "$SHOW_ERROR" ] ; then

echo "${plugincc}" >&2

fi

exit 1

fi

case "$plugincc" in

*"$1 CC"*)

echo "$1"

exit 0

;;

*"$2 CXX"*)

# the c++ compiler needs another test, see below

;;

*)

exit 1

;;

esac

# we need a c++ compiler that supports the designated initializer GNU extension

plugincc=$($2 -c -x c++ -std=gnu++98 - -fsyntax-only -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF

#include "gcc-common.h"

class test {

public:

int test;

} test = {

.test = 1

};

EOF

)

if [ $? -eq 0 ]

then

echo "$2"

exit 0

fi

if [ -n "$SHOW_ERROR" ] ; then

echo "${plugincc}" >&2

fi

exit 1