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apache Conditional definition of ap_log_perror contains typo that prevents compilation

In function macro ap_do_log_perror__ there is a call to function ap_do_log_perror. However, there is no function with that name, the function's correct name being ap_log_perror_ . The condition __STDC_VERSION__ >= 199901L holds if the compiler accepts C99.

Bug fixed by commit 3407eccc321

Type	UndefinedSymbol
Config	"__STDC_VERSION__ >= 199901L && APLOG_MAX_LOGLEVEL" (2nd degree)
Fix-in	code
Location	include/

#include <stdio.h>
#include <stdlib.h>

void ap_log_perror_(int level)
{
  printf("%d\n", level);
}

#if __STDC_VERSION__ >= 199901L && defined(APLOG_MAX_LOGLEVEL)
#define ap_log_perror__(level)    \
  if (rand() % 2) { ap_do_log_perror_(level); } // ERROR: ap_do_log_perror_ undeclared
#endif

int main(void)
{
#if __STDC_VERSION__ >= 199901L && defined(APLOG_MAX_LOGLEVEL)
  ap_log_perror__(2);
#endif
  return 0;
}

diff --git a/apache/simple/3407ecc.c b/apache/simple/3407ecc.c
--- a/apache/simple/3407ecc.c
+++ b/apache/simple/3407ecc.c
@@ -8,7 +8,7 @@ void ap_log_perror_(int level)
 
 #if __STDC_VERSION__ >= 199901L && defined(APLOG_MAX_LOGLEVEL)
 #define ap_log_perror__(level)    \
-  if (rand() % 2) { ap_do_log_perror_(level); } // ERROR: ap_do_log_perror_ undeclared
+  if (rand() % 2) { ap_log_perror_(level); } // ERROR: ap_do_log_perror_ undeclared
 #endif
 
 int main(void)

. ERROR http_log.h.c:318:ap_do_log_perror(...);