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#!/bin/sh
CXX="$1"
if [ -z "$CXX" ]; then
echo >&2 "CXX not specified"
exit 1
fi
shift # The rest of arguments are CFLAGS of some sort.
cat <<END >conftest.cc
#include <unistd.h>
int main()
{
fdatasync(1);
return 0;
}
END
if $CXX "$@" -c conftest.cc >/dev/null 2>/dev/null; then
FDATASYNC="#define CRAWL_HAVE_FDATASYNC"
else
FDATASYNC="#undef CRAWL_HAVE_FDATASYNC"
fi
rm -f conftest.cc conftest.o
cat <<END >conftest.cc
#include <string.h>
int main()
{
const char *src = "hello";
char dst[10];
strlcpy(dst, src, sizeof(dst));
return 0;
}
END
if $CXX "$@" -c conftest.cc >/dev/null 2>/dev/null; then
STRLCPY="#define CRAWL_HAVE_STRLCPY"
else
STRLCPY="#undef CRAWL_HAVE_STRLCPY"
fi
rm -f conftest.cc conftest.o
cat <<END >config.h
// Generated by util/configure
$FDATASYNC
$STRLCPY
END
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