Add BOTAN_DLL macro in all needed spots for working DLL export. Based

on a patch from Joel Low for MSVC, modified and tested with GCC using
-fvisibility=hidden and the visibility attribute.

Getting this working completely requires making the shared object and
static lib builds completely distinct (which is also a win since it
allows avoiding -fPIC usage, etc in the static lib).

Currently too many things are being exported, though it is an improvement
as internal-only code like the bigint_* functions are hidden.

1 files changed, 1 insertions, 1 deletions

diff --git a/include/crc32.h b/include/crc32.h
index a8467044f..51939c6e1 100644
--- a/include/crc32.h
+++ b/include/crc32.h
@@ -13,7 +13,7 @@ namespace Botan {
 /*************************************************
 * CRC32                                          *
 *************************************************/
-class CRC32 : public HashFunction
+class BOTAN_DLL CRC32 : public HashFunction
    {
    public:
       void clear() throw() { crc = 0xFFFFFFFF; }