Fix compiler warning on system without vasprintf

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@2016 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 6 insertions, 3 deletions

diff --git a/lib/util/nstring.c b/lib/util/nstring.c
index f5d99fba..ef47cbe1 100644
--- a/lib/util/nstring.c
+++ b/lib/util/nstring.c
@@ -808,17 +808,20 @@ pm_asprintf(const char ** const resultP,
         result = NULL;
     else {
         size_t const allocSize = dryRunLen + 1;
-        result = malloc(allocSize);
-        if (result != NULL) {
+        char * buffer;
+        buffer = malloc(allocSize);
+        if (buffer != NULL) {
             va_list varargs;
             size_t realLen;
 
             va_start(varargs, fmt);
 
-            pm_vsnprintf(result, allocSize, fmt, varargs, &realLen);
+            pm_vsnprintf(buffer, allocSize, fmt, varargs, &realLen);
                 
             assert(realLen == dryRunLen);
             va_end(varargs);
+
+            result = buffer;
         }
     }
 #endif