Remove internal md5 and sha2 implementations

The internal implementations for md5 and sha256 checksums have not been merged
from upstream sources for a long time.  Instead of us carrying copies of code
from other projects, we should just support building against multiple libraries
that provide such functionality.

This patch removes the md5 and sha2 code (originally obtained from PolarSSL)
from our repository.  The configure script will now error unless at least one
library supporting checksum generation is present, with the only library
currently supported being openssl.  It will be relatively simple for other
such libraries (e.g. nettle) to be supported if anyone wishes to add them.

Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 0 insertions, 5 deletions

diff --git a/lib/libalpm/util.c b/lib/libalpm/util.c
index 1e554632..3b7c3bc9 100644
--- a/lib/libalpm/util.c
+++ b/lib/libalpm/util.c
@@ -40,9 +40,6 @@
 #ifdef HAVE_LIBSSL
 #include <openssl/md5.h>
 #include <openssl/sha.h>
-#else
-#include "md5.h"
-#include "sha2.h"
 #endif
 
 /* libalpm */
@@ -990,7 +987,6 @@ char SYMEXPORT *alpm_compute_md5sum(const char *filename)
 
 	ASSERT(filename != NULL, return NULL);
 
-	/* defined above for OpenSSL, otherwise defined in md5.h */
 	if(md5_file(filename, output) > 0) {
 		return NULL;
 	}
@@ -1009,7 +1005,6 @@ char SYMEXPORT *alpm_compute_sha256sum(const char *filename)
 
 	ASSERT(filename != NULL, return NULL);
 
-	/* defined above for OpenSSL, otherwise defined in sha2.h */
 	if(sha2_file(filename, output, 0) > 0) {
 		return NULL;
 	}