don't check for snprintf

CMakeLists.txt

@@ -200,9 +200,6 @@ check_include_file("inttypes.h" HAVE_INTTYPES_H)
 # We also need <ucontext.h>/<sys/ucontext.h>, but we get those from
 # AC_PC_FROM_UCONTEXT, below.
 
-# for windows
-check_symbol_exists(snprintf stdio.h HAVE_SNPRINTF)
-
 # We override a lot of memory allocation routines, not all of which are
 # standard.  For those the system doesn't declare, we'll declare ourselves.
 set(CMAKE_REQUIRED_DEFINITIONS -D_XOPEN_SOURCE=600)

cmake/config.h.in

@@ -138,9 +138,6 @@
 /* Define to 1 if you have the <sched.h> header file. */
 #cmakedefine HAVE_SCHED_H
 
-/* Define to 1 if you have the `snprintf' function. */
-#cmakedefine HAVE_SNPRINTF
-
 /* Define to 1 if you have the <stdint.h> header file. */
 #cmakedefine HAVE_STDINT_H
 

src/windows/config.h

@@ -299,10 +299,6 @@
 # define _WIN32_WINNT 0x0501
 #endif
 
-#if defined(_MSC_VER) && _MSC_VER >= 1900
-#define HAVE_SNPRINTF 1
-#endif
-
 // We want to make sure not to ever try to #include heap-checker.h
 #define NO_HEAP_CHECK 1
 

src/windows/mingw.h

@@ -54,8 +54,6 @@
 # define _WIN32_WINNT 0x0501
 #endif
 
-#define HAVE_SNPRINTF 1
-
 // Some mingw distributions have a pthreads wrapper, but it doesn't
 // work as well as native windows spinlocks (at least for us).  So
 // pretend the pthreads wrapper doesn't exist, even when it does.

src/windows/port.h

@@ -318,17 +318,6 @@ inline int perftools_vsnprintf(char *str, size_t size, const char *format,
 }
 #endif
 
-#ifndef HAVE_SNPRINTF
-inline int snprintf(char *str, size_t size, const char *format, ...) {
-  va_list ap;
-  int r;
-  va_start(ap, format);
-  r = perftools_vsnprintf(str, size, format, ap);
-  va_end(ap);
-  return r;
-}
-#endif
-
 #ifndef HAVE_INTTYPES_H
 #define PRIx64  "I64x"
 #define SCNx64  "I64x"