diff --git a/adler32.c b/adler32.c
index 78999f5..0e4e5f9 100644
--- a/adler32.c
+++ b/adler32.c
@@ -22,7 +22,7 @@
 #include "library.h"
 #include "adler32.h"
 
-adler32_ctx* adler32_init()
+AARU_EXPORT adler32_ctx* AARU_CALL adler32_init()
 {
     adler32_ctx* ctx;
 
@@ -36,7 +36,7 @@ adler32_ctx* adler32_init()
     return ctx;
 }
 
-int adler32_update(adler32_ctx* ctx, const uint8_t* data, uint32_t len)
+AARU_EXPORT int AARU_CALL adler32_update(adler32_ctx* ctx, const uint8_t* data, uint32_t len)
 {
     if(!ctx || !data) return -1;
 
@@ -49,7 +49,7 @@ int adler32_update(adler32_ctx* ctx, const uint8_t* data, uint32_t len)
     return 0;
 }
 
-int adler32_final(adler32_ctx* ctx, uint32_t* checksum)
+AARU_EXPORT int AARU_CALL adler32_final(adler32_ctx* ctx, uint32_t* checksum)
 {
     if(!ctx) return -1;
 
@@ -57,7 +57,7 @@ int adler32_final(adler32_ctx* ctx, uint32_t* checksum)
     return 0;
 }
 
-void adler32_free(adler32_ctx* ctx)
+AARU_EXPORT void AARU_CALL adler32_free(adler32_ctx* ctx)
 {
     if(!ctx) return;
 
diff --git a/adler32.h b/adler32.h
index 07d5ed5..ca595c6 100644
--- a/adler32.h
+++ b/adler32.h
@@ -31,4 +31,4 @@ AARU_EXPORT int AARU_CALL adler32_update(adler32_ctx* ctx, const uint8_t* data,
 AARU_EXPORT int AARU_CALL adler32_final(adler32_ctx* ctx, uint32_t* checksum);
 AARU_EXPORT void AARU_CALL adler32_free(adler32_ctx* ctx);
 
-#endif//AARU_CHECKSUMS_NATIVE_LIBRARY_H
+#endif //AARU_CHECKSUMS_NATIVE_ADLER32_H
diff --git a/crc16.c b/crc16.c
index db80c86..a438164 100644
--- a/crc16.c
+++ b/crc16.c
@@ -19,11 +19,11 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-#include "crc16.h"
-
 #include "library.h"
 
-crc16_ctx* crc16_init(void)
+#include "crc16.h"
+
+AARU_EXPORT crc16_ctx* AARU_CALL crc16_init(void)
 {
     crc16_ctx* ctx = (crc16_ctx*)malloc(sizeof(crc16_ctx));
 
@@ -34,7 +34,7 @@ crc16_ctx* crc16_init(void)
     return ctx;
 }
 
-int crc16_update(crc16_ctx* ctx, const uint8_t* data, uint32_t len)
+AARU_EXPORT int AARU_CALL crc16_update(crc16_ctx* ctx, const uint8_t* data, uint32_t len)
 {
     if(!ctx || !data) return -1;
 
@@ -43,7 +43,7 @@ int crc16_update(crc16_ctx* ctx, const uint8_t* data, uint32_t len)
     return 0;
 }
 
-int crc16_final(crc16_ctx* ctx, uint16_t* crc)
+AARU_EXPORT int AARU_CALL crc16_final(crc16_ctx* ctx, uint16_t* crc)
 {
     if(!ctx) return -1;
 
@@ -52,7 +52,7 @@ int crc16_final(crc16_ctx* ctx, uint16_t* crc)
     return 0;
 }
 
-void crc16_free(crc16_ctx* ctx)
+AARU_EXPORT void AARU_CALL crc16_free(crc16_ctx* ctx)
 {
     if(ctx) free(ctx);
 }
\ No newline at end of file
diff --git a/crc16.h b/crc16.h
index 9708f9d..89a1eaf 100644
--- a/crc16.h
+++ b/crc16.h
@@ -45,7 +45,7 @@ static uint16_t crc16_table[256] =
             0x8641, 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040
 };
 
-crc16_ctx* crc16_init();
-int crc16_update(crc16_ctx* ctx, const uint8_t* data, uint32_t len);
-int crc16_final(crc16_ctx* ctx, uint16_t* crc);
-void crc16_free(crc16_ctx* ctx);
\ No newline at end of file
+AARU_EXPORT crc16_ctx* AARU_CALL crc16_init();
+AARU_EXPORT int AARU_CALL crc16_update(crc16_ctx* ctx, const uint8_t* data, uint32_t len);
+AARU_EXPORT int AARU_CALL crc16_final(crc16_ctx* ctx, uint16_t* crc);
+AARU_EXPORT void AARU_CALL crc16_free(crc16_ctx* ctx);
\ No newline at end of file
diff --git a/crc16_ccitt.c b/crc16_ccitt.c
index af30252..bffaabc 100644
--- a/crc16_ccitt.c
+++ b/crc16_ccitt.c
@@ -19,11 +19,11 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-#include "crc16_ccitt.h"
-
 #include "library.h"
 
-crc16_ccitt_ctx* crc16_ccitt_init(void)
+#include "crc16_ccitt.h"
+
+AARU_EXPORT crc16_ccitt_ctx* AARU_CALL crc16_ccitt_init(void)
 {
     crc16_ccitt_ctx* ctx = (crc16_ccitt_ctx*)malloc(sizeof(crc16_ccitt_ctx));
 
@@ -34,7 +34,7 @@ crc16_ccitt_ctx* crc16_ccitt_init(void)
     return ctx;
 }
 
-int crc16_ccitt_update(crc16_ccitt_ctx* ctx, const uint8_t* data, uint32_t len)
+AARU_EXPORT int AARU_CALL crc16_ccitt_update(crc16_ccitt_ctx* ctx, const uint8_t* data, uint32_t len)
 {
     if(!ctx || !data) return -1;
 
@@ -43,7 +43,7 @@ int crc16_ccitt_update(crc16_ccitt_ctx* ctx, const uint8_t* data, uint32_t len)
     return 0;
 }
 
-int crc16_ccitt_final(crc16_ccitt_ctx* ctx, uint16_t* crc)
+AARU_EXPORT int AARU_CALL crc16_ccitt_final(crc16_ccitt_ctx* ctx, uint16_t* crc)
 {
     if(!ctx) return -1;
 
@@ -52,7 +52,7 @@ int crc16_ccitt_final(crc16_ccitt_ctx* ctx, uint16_t* crc)
     return 0;
 }
 
-void crc16_ccitt_free(crc16_ccitt_ctx* ctx)
+AARU_EXPORT void AARU_CALL crc16_ccitt_free(crc16_ccitt_ctx* ctx)
 {
     if(ctx) free(ctx);
 }
\ No newline at end of file
diff --git a/crc16_ccitt.h b/crc16_ccitt.h
index f41b2d2..653fc2e 100644
--- a/crc16_ccitt.h
+++ b/crc16_ccitt.h
@@ -45,7 +45,7 @@ static uint16_t crc16_ccitt_table[256] =
     0x9ff8, 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
 };
 
-crc16_ccitt_ctx* crc16_ccitt_init();
-int crc16_ccitt_update(crc16_ccitt_ctx* ctx, const uint8_t* data, uint32_t len);
-int crc16_ccitt_final(crc16_ccitt_ctx* ctx, uint16_t* crc);
-void crc16_ccitt_free(crc16_ccitt_ctx* ctx);
\ No newline at end of file
+AARU_EXPORT crc16_ccitt_ctx* AARU_CALL crc16_ccitt_init();
+AARU_EXPORT int AARU_CALL crc16_ccitt_update(crc16_ccitt_ctx* ctx, const uint8_t* data, uint32_t len);
+AARU_EXPORT int AARU_CALL crc16_ccitt_final(crc16_ccitt_ctx* ctx, uint16_t* crc);
+AARU_EXPORT void AARU_CALL crc16_ccitt_free(crc16_ccitt_ctx* ctx);
\ No newline at end of file
diff --git a/crc32.c b/crc32.c
index 8aab08a..fcfb640 100644
--- a/crc32.c
+++ b/crc32.c
@@ -19,11 +19,11 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-#include "crc32.h"
-
 #include "library.h"
 
-crc32_ctx* crc32_init(void)
+#include "crc32.h"
+
+AARU_EXPORT crc32_ctx* AARU_CALL crc32_init(void)
 {
     crc32_ctx* ctx = (crc32_ctx*)malloc(sizeof(crc32_ctx));
 
@@ -44,7 +44,7 @@ crc32_ctx* crc32_init(void)
     return ctx;
 }
 
-int crc32_update(crc32_ctx* ctx, const uint8_t* data, uint32_t len)
+AARU_EXPORT int AARU_CALL crc32_update(crc32_ctx* ctx, const uint8_t* data, uint32_t len)
 {
     if(!ctx || !data) return -1;
 
@@ -53,7 +53,7 @@ int crc32_update(crc32_ctx* ctx, const uint8_t* data, uint32_t len)
     return 0;
 }
 
-int crc32_final(crc32_ctx* ctx, uint32_t* crc)
+AARU_EXPORT int AARU_CALL crc32_final(crc32_ctx* ctx, uint32_t* crc)
 {
     if(!ctx) return -1;
 
@@ -62,7 +62,7 @@ int crc32_final(crc32_ctx* ctx, uint32_t* crc)
     return 0;
 }
 
-void crc32_free(crc32_ctx* ctx)
+AARU_EXPORT void AARU_CALL crc32_free(crc32_ctx* ctx)
 {
     if(ctx) free(ctx);
 }
\ No newline at end of file
diff --git a/crc32.h b/crc32.h
index 0c6e271..81fe446 100644
--- a/crc32.h
+++ b/crc32.h
@@ -25,7 +25,7 @@ typedef struct
 #define CRC32_ISO_POLY 0xEDB88320
 #define CRC32_ISO_SEED 0xFFFFFFFF
 
-crc32_ctx* crc32_init();
-int crc32_update(crc32_ctx* ctx, const uint8_t* data, uint32_t len);
-int crc32_final(crc32_ctx* ctx, uint32_t* crc);
-void crc32_free(crc32_ctx* ctx);
\ No newline at end of file
+AARU_EXPORT crc32_ctx* AARU_CALL crc32_init();
+AARU_EXPORT int AARU_CALL crc32_update(crc32_ctx* ctx, const uint8_t* data, uint32_t len);
+AARU_EXPORT int AARU_CALL crc32_final(crc32_ctx* ctx, uint32_t* crc);
+AARU_EXPORT void AARU_CALL crc32_free(crc32_ctx* ctx);
\ No newline at end of file
diff --git a/crc64.c b/crc64.c
index cdeb6c0..39577d0 100644
--- a/crc64.c
+++ b/crc64.c
@@ -19,11 +19,11 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-#include "crc64.h"
-
 #include "library.h"
 
-crc64_ctx* crc64_init(void)
+#include "crc64.h"
+
+AARU_EXPORT crc64_ctx* AARU_CALL crc64_init(void)
 {
     crc64_ctx* ctx = (crc64_ctx*)malloc(sizeof(crc64_ctx));
 
@@ -44,7 +44,7 @@ crc64_ctx* crc64_init(void)
     return ctx;
 }
 
-int crc64_update(crc64_ctx* ctx, const uint8_t* data, uint32_t len)
+AARU_EXPORT int AARU_CALL crc64_update(crc64_ctx* ctx, const uint8_t* data, uint32_t len)
 {
     if(!ctx || !data) return -1;
 
@@ -53,7 +53,7 @@ int crc64_update(crc64_ctx* ctx, const uint8_t* data, uint32_t len)
     return 0;
 }
 
-int crc64_final(crc64_ctx* ctx, uint64_t* crc)
+AARU_EXPORT int AARU_CALL crc64_final(crc64_ctx* ctx, uint64_t* crc)
 {
     if(!ctx) return -1;
 
@@ -62,7 +62,7 @@ int crc64_final(crc64_ctx* ctx, uint64_t* crc)
     return 0;
 }
 
-void crc64_free(crc64_ctx* ctx)
+AARU_EXPORT void AARU_CALL crc64_free(crc64_ctx* ctx)
 {
     if(ctx) free(ctx);
 }
\ No newline at end of file
diff --git a/crc64.h b/crc64.h
index 18e4920..3caad5f 100644
--- a/crc64.h
+++ b/crc64.h
@@ -25,7 +25,7 @@ typedef struct
 #define CRC64_ECMA_POLY 0xC96C5795D7870F42
 #define CRC64_ECMA_SEED 0xFFFFFFFFFFFFFFFF
 
-crc64_ctx* crc64_init();
-int crc64_update(crc64_ctx* ctx, const uint8_t* data, uint32_t len);
-int crc64_final(crc64_ctx* ctx, uint64_t* crc);
-void crc64_free(crc64_ctx* ctx);
\ No newline at end of file
+AARU_EXPORT crc64_ctx* AARU_CALL crc64_init();
+AARU_EXPORT int AARU_CALL crc64_update(crc64_ctx* ctx, const uint8_t* data, uint32_t len);
+AARU_EXPORT int AARU_CALL crc64_final(crc64_ctx* ctx, uint64_t* crc);
+AARU_EXPORT void AARU_CALL crc64_free(crc64_ctx* ctx);
\ No newline at end of file
diff --git a/spamsum.c b/spamsum.c
index 0d16cfb..54ffc5c 100644
--- a/spamsum.c
+++ b/spamsum.c
@@ -21,17 +21,17 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "spamsum.h"
-
 #include "library.h"
 
+#include "spamsum.h"
+
 static uint8_t _b64[] = {0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D,
                          0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A,
                          0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D,
                          0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A,
                          0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F};
 
-spamsum_ctx* spamsum_init(void)
+AARU_EXPORT spamsum_ctx* AARU_CALL spamsum_init(void)
 {
     spamsum_ctx* ctx = (spamsum_ctx*)malloc(sizeof(spamsum_ctx));
     if(!ctx) return NULL;
@@ -45,7 +45,7 @@ spamsum_ctx* spamsum_init(void)
     return ctx;
 }
 
-int spamsum_update(spamsum_ctx* ctx, const uint8_t* data, uint32_t len)
+AARU_EXPORT int AARU_CALL spamsum_update(spamsum_ctx* ctx, const uint8_t* data, uint32_t len)
 {
     if(!ctx || !data) return -1;
 
@@ -56,7 +56,7 @@ int spamsum_update(spamsum_ctx* ctx, const uint8_t* data, uint32_t len)
     return 0;
 }
 
-void spamsum_free(spamsum_ctx* ctx)
+AARU_EXPORT void AARU_CALL spamsum_free(spamsum_ctx* ctx)
 {
     if(ctx) free(ctx);
 }
@@ -65,7 +65,7 @@ void spamsum_free(spamsum_ctx* ctx)
 #define sum_hash(c, h) ((h * HASH_PRIME) ^ c);
 #define SSDEEP_BS(index) (MIN_BLOCKSIZE << index)
 
-void fuzzy_engine_step(spamsum_ctx* ctx, uint8_t c)
+AARU_LOCAL void fuzzy_engine_step(spamsum_ctx* ctx, uint8_t c)
 {
     uint32_t i;
     /* At each character we update the rolling hash and the normal hashes.
@@ -118,7 +118,7 @@ void fuzzy_engine_step(spamsum_ctx* ctx, uint8_t c)
     }
 }
 
-void roll_hash(spamsum_ctx* ctx, uint8_t c)
+AARU_LOCAL void roll_hash(spamsum_ctx* ctx, uint8_t c)
 {
     ctx->Roll.H2 -= ctx->Roll.H1;
     ctx->Roll.H2 += ROLLING_WINDOW * c;
@@ -136,7 +136,7 @@ void roll_hash(spamsum_ctx* ctx, uint8_t c)
     ctx->Roll.H3 ^= c;
 }
 
-void fuzzy_try_reduce_blockhash(spamsum_ctx* ctx)
+AARU_LOCAL void fuzzy_try_reduce_blockhash(spamsum_ctx* ctx)
 {
     assert(ctx->Bhstart < ctx->Bhend);
 
@@ -156,7 +156,7 @@ void fuzzy_try_reduce_blockhash(spamsum_ctx* ctx)
     ++ctx->Bhstart;
 }
 
-void fuzzy_try_fork_blockhash(spamsum_ctx* ctx)
+AARU_LOCAL void fuzzy_try_fork_blockhash(spamsum_ctx* ctx)
 {
     if(ctx->Bhend >= NUM_BLOCKHASHES) return;
 
@@ -172,7 +172,7 @@ void fuzzy_try_fork_blockhash(spamsum_ctx* ctx)
     ++ctx->Bhend;
 }
 
-uint8_t* spamsum_final(spamsum_ctx* ctx)
+AARU_EXPORT uint8_t* AARU_CALL spamsum_final(spamsum_ctx* ctx)
 {
     uint32_t bi     = ctx->Bhstart;
     uint32_t h      = roll_sum(ctx);
diff --git a/spamsum.h b/spamsum.h
index 46e8dbb..80c552b 100644
--- a/spamsum.h
+++ b/spamsum.h
@@ -51,13 +51,13 @@ typedef        struct
     RollState Roll;
 } spamsum_ctx;
 
-spamsum_ctx* spamsum_init(void);
-int spamsum_update(spamsum_ctx* ctx, const uint8_t* data, uint32_t len);
-uint8_t* spamsum_final(spamsum_ctx* ctx);
-void spamsum_free(spamsum_ctx* ctx);
+AARU_EXPORT spamsum_ctx* AARU_CALL spamsum_init(void);
+AARU_EXPORT int AARU_CALL spamsum_update(spamsum_ctx* ctx, const uint8_t* data, uint32_t len);
+AARU_EXPORT uint8_t* AARU_CALL spamsum_final(spamsum_ctx* ctx);
+AARU_EXPORT void AARU_CALL spamsum_free(spamsum_ctx* ctx);
 
-void fuzzy_engine_step(spamsum_ctx* ctx, uint8_t c);
-void roll_hash(spamsum_ctx* ctx, uint8_t c);
-void fuzzy_try_reduce_blockhash(spamsum_ctx* ctx);
-void fuzzy_try_fork_blockhash(spamsum_ctx* ctx);
+AARU_LOCAL void fuzzy_engine_step(spamsum_ctx* ctx, uint8_t c);
+AARU_LOCAL void roll_hash(spamsum_ctx* ctx, uint8_t c);
+AARU_LOCAL void fuzzy_try_reduce_blockhash(spamsum_ctx* ctx);
+AARU_LOCAL void fuzzy_try_fork_blockhash(spamsum_ctx* ctx);