Add build script

Signed-off-by: Slendi <slendi@socopon.com>

build.sh

@@ -0,0 +1,54 @@
+#!/bin/sh
+set -e
+
+BUILD_DIR="BUILD"
+INSTALL_DIR="$(pwd)/install"
+CFLAGS="-std=gnu99 -Wall -Wextra -pedantic -Werror -Wno-newline-eof -Wno-language-extension-token"
+BUILD_SHARED=1
+PTHREAD_SUPPORT=1
+POSIX_SUPPORT=1
+SRC_DIR="src"
+INCLUDE_DIR="include"
+OUTPUT_NAME="libdcfg"
+
+for arg in "$@"; do
+	case $arg in
+		--debug) CFLAGS="$CFLAGS -g -O0" ;;
+		--release) CFLAGS="$CFLAGS -O2" ;;
+		--no-pthread) PTHREAD_SUPPORT=0 ;;
+		--no-posix) POSIX_SUPPORT=0 ;;
+		--clean) rm -rf "$BUILD_DIR" "$INSTALL_DIR"; echo "Cleaned."; exit 0 ;;
+	esac
+done
+
+# Setup directories
+mkdir -p "$BUILD_DIR" "$INSTALL_DIR/lib" "$INSTALL_DIR/include"
+
+# Compiler and linker
+CC=${CC:-cc}
+
+if [ "$PTHREAD_SUPPORT" -eq 1 ]; then
+	CFLAGS="$CFLAGS -DDCFG_PTHREAD_SUPPORT"
+	LIBS="$LIBS -lpthread"
+fi
+if [ "$POSIX_SUPPORT" -eq 1 ]; then
+	CFLAGS="$CFLAGS -DDCFG_POSIX_SUPPORT"
+fi
+
+echo "Building DCFG..."
+cd "$BUILD_DIR"
+
+set -x
+$CC $CFLAGS -fPIC -shared "../$SRC_DIR/dcfg.c" -I"../$INCLUDE_DIR" -o "$OUTPUT_NAME.so" $LIBS
+
+$CC $CFLAGS -c "../$SRC_DIR/dcfg.c" -I"../$INCLUDE_DIR"
+ar rcs "$OUTPUT_NAME.a" dcfg.o
+
+set +x
+
+echo "Installing..."
+cp -r "../$INCLUDE_DIR/"* "$INSTALL_DIR/include/"
+cp "$OUTPUT_NAME.so" "$INSTALL_DIR/lib/"
+cp "$OUTPUT_NAME.a" "$INSTALL_DIR/lib/"
+
+echo "Done. Installed to $INSTALL_DIR"