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@@ -205,6 +205,7 @@ fi
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AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
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[AC_RUN_IFELSE([AC_LANG_SOURCE(
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[[#include <stdlib.h>
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+#include <string.h>
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int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
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return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
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[tor_cv_null_is_zero=yes],
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