hashdeep: fix build with gcc>=11

srcpkgs/hashdeep/patches/6ef69a26126ee4e69a25392fd456b8a66c51dffd.patch

@@ -0,0 +1,29 @@
+From 6ef69a26126ee4e69a25392fd456b8a66c51dffd Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 15 Nov 2016 02:46:55 +0000
+Subject: [PATCH] Fix errors found by clang
+
+Fixes errors like
+
+../../git/src/hash.cpp:282:19: error: ordered comparison between pointer and zero ('const unsigned char *' and 'int')
+            if(fdht->base>0){
+               ~~~~~~~~~~^~
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ src/hash.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/hash.cpp b/src/hash.cpp
+index 42161579f..52f419b0c 100644
+--- a/src/hash.cpp
++++ b/src/hash.cpp
+@@ -279,7 +279,7 @@ void file_data_hasher_t::hash()
+ 		MAP_FILE|
+ #endif
+ 		MAP_SHARED,fd,0);
+-	    if(fdht->base>0){		
++	    if(fdht->base != (void *) -1){
+ 		/* mmap is successful, so set the bounds.
+ 		 * if it is not successful, we default to reading the fd
+ 		 */