---
 builtins/printf.def |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

--- builtins/printf.def
+++ builtins/printf.def	2018-11-29 08:11:53.901189708 +0000
@@ -54,6 +54,7 @@ error occurs.
 $END
 
 #include <config.h>
+#include <locale.h>
 
 #include "../bashtypes.h"
 
@@ -662,12 +663,20 @@ printf_builtin (list)
 	    case 'A':
 #endif
 	      {
-		char *f;
+		char *f, *lce = getenv("LC_NUMERIC"), *lcl = setlocale(LC_NUMERIC, NULL);
 		floatmax_t p;
 
 		p = getfloatmax ();
 		f = mklong (start, FLOATMAX_CONV, sizeof(FLOATMAX_CONV) - 1);
+
+		if (lce && lcl)
+		    setlocale(LC_NUMERIC, lce);
+
 		PF (f, p);
+
+		if (lce && lcl)
+		    setlocale(LC_NUMERIC, lcl);
+
 		break;
 	      }