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, 10 insertions, 6 deletions

diff --git a/include/pem.h b/include/pem.h
index 1d873d238..e9f14ddc2 100644
--- a/include/pem.h
+++ b/include/pem.h
@@ -15,12 +15,16 @@ namespace PEM_Code {
 /*************************************************
 * PEM Encoding/Decoding                          *
 *************************************************/
-std::string encode(const byte[], u32bit, const std::string&, u32bit = 64);
-std::string encode(const MemoryRegion<byte>&, const std::string&, u32bit = 64);
-
-SecureVector<byte> decode(DataSource&, std::string&);
-SecureVector<byte> decode_check_label(DataSource&, const std::string&);
-bool matches(DataSource&, const std::string& = "", u32bit search_range = 4096);
+BOTAN_DLL std::string encode(const byte[], u32bit,
+                             const std::string&, u32bit = 64);
+BOTAN_DLL std::string encode(const MemoryRegion<byte>&,
+                             const std::string&, u32bit = 64);
+
+BOTAN_DLL SecureVector<byte> decode(DataSource&, std::string&);
+BOTAN_DLL SecureVector<byte> decode_check_label(DataSource&,
+                                                const std::string&);
+BOTAN_DLL bool matches(DataSource&, const std::string& = "",
+                       u32bit search_range = 4096);
 
 }