build and test for direct_hash

new_version/direct_hash/build.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+HERE=$(cd "$(dirname "$0")" && pwd)
+ROOT=$(cd "$HERE/../.." && pwd)
+BUILD="$HERE/build"
+mkdir -p "$BUILD"
+touch "$BUILD/rpmlib.h" "$BUILD/system.h"
+cp "$HERE/../roaring_bitmap/set.h" "$BUILD/set.h"
+
+CFLAGS=(-O2 -std=gnu11 -D_GNU_SOURCE -Wall -Wextra -Werror -I"$BUILD")
+COMPAT=(-include "$ROOT/scripts/rpmsetcmp/newset_compat.h")
+
+for tool in mkset setcmp; do
+  cc "${CFLAGS[@]}" "${COMPAT[@]}" \
+    "$ROOT/reimplement/set9.c" "$ROOT/scripts/rpmsetcmp/$tool.c" \
+    -o "$BUILD/$tool-set9"
+  cc "${CFLAGS[@]}" "${COMPAT[@]}" \
+    "$HERE/hash_set.c" "$ROOT/scripts/rpmsetcmp/$tool.c" \
+    -o "$BUILD/$tool-direct"
+done
+
+cc "${CFLAGS[@]}" -fPIC -shared "${COMPAT[@]}" \
+  "$ROOT/reimplement/set9.c" -o "$BUILD/libset9.so"
+cc "${CFLAGS[@]}" -fPIC -shared "${COMPAT[@]}" \
+  "$HERE/hash_set.c" -o "$BUILD/libdirect-hash.so"
+
+printf 'Built tools and benchmark libraries in %s\n' "$BUILD"