priv: Create crc32.h.

As crc32 is only needed by SSHv1, build it only with SSHv1.

src/CMakeLists.txt

@@ -82,7 +82,6 @@ set(libssh_SRCS
   client.c
   config.c
   connect.c
-  crc32.c
   crypt.c
   dh.c
   ecdh.c
@@ -144,6 +143,7 @@ if (WITH_SSH1)
     ${libssh_SRCS}
     auth1.c
     channels1.c
+    crc32.c
     kex1.c
     packet1.c
   )

src/crc32.c

@@ -21,7 +21,10 @@
  * MA 02111-1307, USA.
  */
 
+#include "config.h"
+
 #include "libssh/priv.h"
+#include "libssh/crc32.h"
 
 static uint32_t crc_table[] = {
   0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,

src/packet1.c

@@ -26,6 +26,7 @@
 #include "config.h"
 #include "libssh/priv.h"
 #include "libssh/ssh1.h"
+#include "libssh/crc32.h"
 #include "libssh/packet.h"
 #include "libssh/session.h"
 #include "libssh/buffer.h"