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-rw-r--r--configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index 0cf8a7d538..36f5501d0a 100644
--- a/configure.in
+++ b/configure.in
@@ -200,7 +200,7 @@ AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
[AC_RUN_IFELSE([AC_LANG_SOURCE(
[[#include <stdlib.h>
int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
-return memcmp(&p1,&p2,sizeof(char*)); }]])],
+return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
[tor_cv_null_is_zero=yes],
[tor_cv_null_is_zero=no],
[tor_cv_null_is_zero=cross])])