Eliminate 'possible loss of data' compiler warning in GC_envfile_getenv

(fix of commit 176d5bda1)

* misc.c [GC_READ_ENV_FILE] (GC_envfile_getenv): Change type of namelen
from unsigned to size_t.

1 files changed, 2 insertions, 1 deletions

diff --git a/misc.c b/misc.c
index 22582778..15c760fa 100644
--- a/misc.c
+++ b/misc.c
@@ -714,7 +714,8 @@ GC_API void GC_CALL GC_get_heap_usage_safe(GC_word *pheap_size,
   {
     char *p;
     char *end_of_content;
-    unsigned namelen;
+    size_t namelen;
+
 #   ifndef NO_GETENV
       p = getenv(name); /* try the standard getenv() first */
       if (p != NULL)