CODEWITHSUNDEEP
c++csqlitemakefilecompilation
aktivb
aktivb

Reputation: 2072

compiling custom c++ wrapper sqlite3

I've downloaded the sqlite3 source, and am trying to make a thin c++ wrapper to use sqlite3 in some of my applications. But I get a list of undefined references in sqlite3.c

In my database.hpp, I have the c include:
extern "C" {
#include "sqlite3.h"
}

My makefile looks like this:
CC=gcc -g
CPP=g++ -g
CFLAGS=-c -Wall -ggdb
CPPSOURCES=$(wildcard *.cpp)
CSOURCES=$(wildcard *.c)
OBJECTS=$(CPPSOURCES:.cpp=.o) $(CSOURCES:.c=.o)
EXECUTABLE=testdb
all: $(CPPSOURCES) $(CSOURCES) $(EXECUTABLE)
$(EXECUTABLE): $(OBJECTS)
\t $(CPP) $(OBJECTS) -o $@
.cpp.o:
\t $(CPP) $(CFLAGS) &< -o $@
.c.o:
\t $(CC) $(CFLAGS) &< -o $@
clean:
\t rm -rf *o $(EXECUTABLE)

So what is missing in my Makefile? Or somewhere else .. Do I need some linker options?

tx,
aktiv

Upvotes: 1

Views: 362

Answers (2)

momboco
momboco

Reputation: 1098

On the download page there is a tarball with a makefile.

http://www.sqlite.org/sqlite-autoconf-3070500.tar.gz

To create the library:

./configure --prefix /your/own/directory
make
make install

Whit this the "makefile" puts the headers and libs in that directory.

Then you can link like Zan explains.

Upvotes: 0

Zan Lynx
Zan Lynx

Reputation: 54325

You need to link the sqlite3 library or it won't work. I don't see any -l parameters.

Also, there's no need for you to use those .cpp.o and .c.o Makefile commands. They'll be handled by the built-in automatic rules. You just need to use the right flag variables. For C files you use CFLAGS, for C++ files you use CXXFLAGS, for the link step you provide LDFLAGS with your -l parameter.

Upvotes: 2

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