[gvfs] Fix a symbol conflict with crc32

[Matthias Clasen <matthiasc src gnome org>]

commit 20fdd8d01515c8b40aa24de196e69d4990953844
Author: Joe Marcus Clarke <marcus freebsd org>
Date:   Fri Jul 31 17:56:05 2009 -0400

    Fix a symbol conflict with crc32
    
    On FreeBSD, the crc32 symbol conflicts with a function of the same
    name in libz, causing segfaults. Fixes bug 589786.

 metadata/crc32.c    |    2 +-
 metadata/crc32.h    |    2 +-
 metadata/metatree.c |    4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/metadata/crc32.c b/metadata/crc32.c
index 5eb64df..5441f8c 100644
--- a/metadata/crc32.c
+++ b/metadata/crc32.c
@@ -82,7 +82,7 @@ static const guint32 crcTable[256] = {
 };
 
 guint32
-crc32 (const void *ptr, size_t len)
+metadata_crc32 (const void *ptr, size_t len)
 {
   guint32 crc = 0xFFFFFFFF;
   const guint8 *bp = (const guint8 *) ptr;
diff --git a/metadata/crc32.h b/metadata/crc32.h
index 2a820bd..b8a62b1 100644
--- a/metadata/crc32.h
+++ b/metadata/crc32.h
@@ -46,4 +46,4 @@
 
 #include <glib.h>
 
-guint32 crc32(const void *ptr, size_t len);
+guint32 metadata_crc32(const void *ptr, size_t len);
diff --git a/metadata/metatree.c b/metadata/metatree.c
index 0f66893..18bdc43 100644
--- a/metadata/metatree.c
+++ b/metadata/metatree.c
@@ -896,7 +896,7 @@ verify_journal_entry (MetaJournal *journal,
   if (entry_len != entry_len_end)
     return NULL;
 
-  real_crc32 = crc32 (journal->data + offset + 8, entry_len - 8);
+  real_crc32 = metadata_crc32 (journal->data + offset + 8, entry_len - 8);
   if (real_crc32 != GUINT32_FROM_BE (entry->crc32))
     return NULL;
 
@@ -1019,7 +1019,7 @@ meta_journal_entry_finish (GString *out)
   len = out->len + 4;
   append_uint32 (out, len);
   set_uint32 (out, 0, len);
-  set_uint32 (out, 4, crc32 (out->str + 8, len - 8));
+  set_uint32 (out, 4, metadata_crc32 (out->str + 8, len - 8));
   return out;
 }