Fix printf formatting for newer msvc

Use autoconf rather than ifdefs to determine what format string to use
for long long.

1 files changed, 57 insertions, 0 deletions

diff --git a/configure b/configure
index d6aebce8..47e08dad 100755
--- a/configure
+++ b/configure
@@ -17694,6 +17694,63 @@ $as_echo "no" >&6; }
    fi
 fi
 
+LL_FMT=""
+oCFLAGS=$CFLAGS
+CFLAGS="$WFLAGS $CFLAGS"
+for fmt in "%lld" "%I64d" "%I64lld"; do
+  if test "$LL_FMT" = ""; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking printf format for long long: $fmt" >&5
+$as_echo_n "checking printf format for long long: $fmt... " >&6; }
+    if test "$cross_compiling" = yes; then :
+  LL_FMT="%lld"
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+        #define _CRT_SECURE_NO_WARNINGS
+        #include <stdio.h>
+        #include <string.h>
+
+int
+main ()
+{
+
+        long long int a = 123456789012345ll;
+        char s[30];
+        sprintf(s, "$fmt", a);
+        return (strcmp(s, "123456789012345") == 0) ? 0 : 1
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  LL_FMT=$fmt
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+    if test "$LL_FMT" != ""; then
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+    else
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    fi
+  fi
+done
+CFLAGS=$oCFLAGS
+if test "LL_FMT" = ""; then
+  LL_FMT="%lld%"
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define LL_FMT "$LL_FMT"
+_ACEOF
+
+
 
 
 if test "$BUILDRULES" = "msvc"; then