Add import/export symbols for MSVC.

This results in an import .lib file.

Closes #4.

Some fixes by Timothy Gu <timothygu99@gmail.com>

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

2 files changed, 11 insertions, 4 deletions

diff --git a/dlfcn.c b/dlfcn.c
index 46c85ce..75f5c81 100644
--- a/dlfcn.c
+++ b/dlfcn.c
@@ -20,6 +20,7 @@
 #include <windows.h>

 #include <stdio.h>

 

+#define DLFCN_WIN32_EXPORTS

 #include "dlfcn.h"

 

 /* Note:

diff --git a/dlfcn.h b/dlfcn.h
index 413c0ab..06c3529 100644
--- a/dlfcn.h
+++ b/dlfcn.h
@@ -24,6 +24,12 @@
 extern "C" {

 #endif

 

+#if defined(DLFCN_WIN32_EXPORTS)

+#   define DLFCN_EXPORT __declspec(dllexport)

+#elif defined (_MSC_VER) // FIXME: MinGW support

+#   define DLFCN_EXPORT __declspec(dllimport)

+#endif

+

 /* POSIX says these are implementation-defined.

  * To simplify use with Windows API, we treat them the same way.

  */

@@ -41,10 +47,10 @@ extern "C" {
 #define RTLD_DEFAULT    0

 #define RTLD_NEXT       0

 

-void *dlopen ( const char *file, int mode );

-int   dlclose( void *handle );

-void *dlsym  ( void *handle, const char *name );

-char *dlerror( void );

+DLFCN_EXPORT void *dlopen ( const char *file, int mode );

+DLFCN_EXPORT int   dlclose(void *handle);

+DLFCN_EXPORT void *dlsym(void *handle, const char *name);

+DLFCN_EXPORT char *dlerror(void);

 

 #ifdef __cplusplus

 }