[gnutls-dev] Compiler warnings on 64bit archs

[Andreas Metzler]

Hej,

building gnutls 1.4.0 (or 1.2.11) on a 64bit arch (amd64, ia64, ...)
triggers a couple of cast warnings:

------------------------
gnutls_buffers.c:268: warning: cast from pointer to integer of different size
gnutls_buffers.c:704: warning: cast from pointer to integer of different size
auth_cert.c:1436: warning: passing argument 1 of '_gnutls_write_uint16' makes integer from pointer without a cast
gnutls_openssl.c:283: warning: cast to pointer from integer of different size
gnutls_openssl.c:290: warning: cast to pointer from integer of different size
gnutls_openssl.c:301: warning: cast to pointer from integer of different size
gnutls_openssl.c:880: warning: cast from pointer to integer of different size
gnutls_openssl.c:892: warning: cast to pointer from integer of different size
serv.c:954: warning: cast to pointer from integer of different size
cli.c:831: warning: cast to pointer from integer of different size
psk.gaa:28: warning: assignment makes integer from pointer without a cast
tls_test.c:270: warning: cast to pointer from integer of different size
ex-cert-select.c:154: warning: cast to pointer from integer of different size
ex-client1.c:52: warning: cast to pointer from integer of different size
ex-client2.c:60: warning: cast to pointer from integer of different size
ex-client-resume.c:57: warning: cast to pointer from integer of different size
ex-serv1.c:132: warning: cast to pointer from integer of different size
ex-serv-anon.c:117: warning: cast to pointer from integer of different size
ex-serv-export.c:177: warning: cast to pointer from integer of different size
ex-serv-pgp.c:136: warning: cast to pointer from integer of different size
ex-client-srp.c:68: warning: cast to pointer from integer of different size
ex-serv-srp.c:121: warning: cast to pointer from integer of different size
anonself.c:113: warning: cast to pointer from integer of different size
anonself.c:290: warning: cast to pointer from integer of different size
pskself.c:116: warning: cast to pointer from integer of different size
pskself.c:284: warning: cast to pointer from integer of different size
dhepskself.c:125: warning: cast to pointer from integer of different size
dhepskself.c:316: warning: cast to pointer from integer of different size
tlsia.c:170: warning: cast to pointer from integer of different size
tlsia.c:459: warning: cast to pointer from integer of different size
resume.c:137: warning: cast to pointer from integer of different size
resume.c:363: warning: cast to pointer from integer of different size
------------------------

The stuff is caused by casting pointers [1] to and from int.

cu andreas
[1] either
gnutls_transport_ptr_t (i.e. void *)
or
pointers to opaque (i.e unsigned char)
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