Compiling DLLs with GCC under windows

This program has 3 files, respectively export.h, export.c, MAIN.C

Export.h File Contents

/* This header is necessary, other people know what to do when calling */#ifdef build_dll#define export __declspec (dllexport) #else # define Export __declspec ( dllimport) #endifEXPORT void export (void);

EXPORT.C File Contents

#include <stdio.h> #include "export.h" Export void export (void) {printf ("HELLO dll\n");}

MAIN.C file contents (if only DLL files are compiled, this file is not required to participate)

#include "export.h" int main () {export (); return 0;}

Compiling the build DLL

D:\>gcc-shared-o Export.dll export.c

This DLL is compiled and other programs can be called.

Now compile main.c call this DLL

D:\>gcc-o Main.exe main.c-l./-lexport

Executive Main.exe

D:\>main.exe

HELLO DLL

Compiling DLLs with GCC under windows