Protobuf: added script for dependencies check

proto/compiler/google/src/google/protobuf/compiler/kotlin/Makefile

@@ -15,7 +15,7 @@ $(EXE): $(BINDIR) $(OBJECTS)
 	$(CXX) $(OBJECTS) -o $(EXE) $(LDFLAGS)
 	
 $(BINDIR)/%.o: $(SRCDIR)/%.cc
-	$(CXX) $(CXXFLAGS) -c -MMD -o $@ $< -lprotoc
+	$(CXX) $(CXXFLAGS) -c -MMD -o $@ $<
 
 include $(wildcard $(BINDIR)/*.d)
 
@@ -24,6 +24,7 @@ $(BINDIR):
 
 clean:
 	rm -rf $(BINDIR)
+	rm $(EXE)
 
 generate:
 	./protoc --kotlin_out=$$HOME/Downloads/carkot/proto/compiler/protoc-artifacts ./test/connect.proto

proto/pre-build.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+lprotoc="/usr/local/lib/libprotoc.so"
+lprotobuf="/usr/local/lib/libprotobuf.so"
+ok=1
+missing=""
+
+if [ ! -e "$lprotoc" ]; then
+	ok=0
+	missing="$missing $lprotoc"
+fi
+
+if [ ! -e "$lprotobuf" ]; then
+	ok=0
+	missing="$missing $lprotobuf"
+fi
+
+if [ "$ok" == 0 ]; then
+	echo "$missing, required for building, is not found"
+	echo "You have to build and install latest Protobuf version from https://github.com/google/protobuf"
+	echo "Do you want to do it automatically?  [y/n]"
+	echo "(Caution: this will take decent amount of time and internet traffic)"
+	response="n"
+	read response
+	if [ $response = "y" ]; then
+		echo "Creating directory for Protobuf sources"
+		mkdir protobuf_sources
+		cd protobuf_sources
+
+		echo "Cloning repository"
+		git clone https://github.com/google/protobuf
+		cd protobuf
+
+		echo "Resolving prerequisites to build Google Protobuf"
+		sudo apt-get install autoconf automake libtool curl make g++ unzip
+
+		echo "Generating Makefiles and etc."
+		./autogen.sh
+		./configure
+
+		echo "Building"
+		make
+
+		echo "Installing"
+		sudo make install
+
+		echo "Cleaning"
+		rm -rf protobuf_sources
+	fi
+else
+	echo "Prerequisites met, you can build library now via Makefile"
+fi