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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Probe for libraries and create header files to record the results. Both C
# header files and Makefile include fragments are created.
OUTPUT_H_FILE=local_config.h
OUTPUT_MKFILE=local_config.mk
# libhugetlbfs
tmpname=$(mktemp)
tmpfile_c=${tmpname}.c
tmpfile_o=${tmpname}.o
echo "#include <sys/types.h>" > $tmpfile_c
echo "#include <hugetlbfs.h>" >> $tmpfile_c
echo "int func(void) { return 0; }" >> $tmpfile_c
CC=${1:?"Usage: $0 <compiler> # example compiler: gcc"}
$CC -c $tmpfile_c -o $tmpfile_o >/dev/null 2>&1
if [ -f $tmpfile_o ]; then
echo "#define LOCAL_CONFIG_HAVE_LIBHUGETLBFS 1" > $OUTPUT_H_FILE
echo "HMM_EXTRA_LIBS = -lhugetlbfs" > $OUTPUT_MKFILE
else
echo "// No libhugetlbfs support found" > $OUTPUT_H_FILE
echo "# No libhugetlbfs support found, so:" > $OUTPUT_MKFILE
echo "HMM_EXTRA_LIBS = " >> $OUTPUT_MKFILE
fi
rm ${tmpname}.*