3 files changed, 72 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-opt/Versions b/sysdeps/ieee754/ldbl-opt/Versions
index 1842a1a3ef..5d6051a12d 100644
--- a/sysdeps/ieee754/ldbl-opt/Versions
+++ b/sysdeps/ieee754/ldbl-opt/Versions
@@ -80,6 +80,8 @@ libc {
   }
   GLIBC_2.30 {
     __nldbl_argp_error; __nldbl_argp_failure;
+    __nldbl_warn; __nldbl_vwarn; __nldbl_warnx; __nldbl_vwarnx;
+    __nldbl_err; __nldbl_verr; __nldbl_errx; __nldbl_verrx;
   }
 }
 libm {
diff --git a/sysdeps/ieee754/ldbl-opt/nldbl-compat.c b/sysdeps/ieee754/ldbl-opt/nldbl-compat.c
index 4f70207f2d..6883814d58 100644
--- a/sysdeps/ieee754/ldbl-opt/nldbl-compat.c
+++ b/sysdeps/ieee754/ldbl-opt/nldbl-compat.c
@@ -23,6 +23,7 @@
 #define __GLIBC_USE_DEPRECATED_SCANF 1
 
 #include <argp.h>
+#include <err.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <libio/strfile.h>
@@ -1011,6 +1012,66 @@ __nldbl_argp_failure (const struct argp_state *state, int status,
   va_end (ap);
 }
 
+#define VA_CALL(call)							\
+{									\
+  va_list ap;								\
+  va_start (ap, format);						\
+  call (format, ap, PRINTF_LDBL_IS_DBL);				\
+  va_end (ap);								\
+}
+
+void
+__nldbl_err (int status, const char *format, ...)
+{
+  VA_CALL (__vwarn_internal)
+  exit (status);
+}
+
+void
+__nldbl_errx (int status, const char *format, ...)
+{
+  VA_CALL (__vwarnx_internal)
+  exit (status);
+}
+
+void
+__nldbl_verr (int status, const char *format, __gnuc_va_list ap)
+{
+  __vwarn_internal (format, ap, PRINTF_LDBL_IS_DBL);
+  exit (status);
+}
+
+void
+__nldbl_verrx (int status, const char *format, __gnuc_va_list ap)
+{
+  __vwarnx_internal (format, ap, PRINTF_LDBL_IS_DBL);
+  exit (status);
+}
+
+void
+__nldbl_warn (const char *format, ...)
+{
+  VA_CALL (__vwarn_internal)
+}
+
+void
+__nldbl_warnx (const char *format, ...)
+{
+  VA_CALL (__vwarnx_internal)
+}
+
+void
+__nldbl_vwarn (const char *format, __gnuc_va_list ap)
+{
+  __vwarn_internal (format, ap, PRINTF_LDBL_IS_DBL);
+}
+
+void
+__nldbl_vwarnx (const char *format, __gnuc_va_list ap)
+{
+  __vwarnx_internal (format, ap, PRINTF_LDBL_IS_DBL);
+}
+
 #if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
 compat_symbol (libc, __nldbl__IO_printf, _IO_printf, GLIBC_2_0);
 compat_symbol (libc, __nldbl__IO_sprintf, _IO_sprintf, GLIBC_2_0);
diff --git a/sysdeps/ieee754/ldbl-opt/nldbl-compat.h b/sysdeps/ieee754/ldbl-opt/nldbl-compat.h
index 9f5836586c..eeda11b420 100644
--- a/sysdeps/ieee754/ldbl-opt/nldbl-compat.h
+++ b/sysdeps/ieee754/ldbl-opt/nldbl-compat.h
@@ -27,6 +27,7 @@
 /* Avoid long double prototypes.  */
 #define __NO_LONG_DOUBLE_MATH	1
 #include <argp.h>
+#include <err.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <stdint.h>
@@ -79,6 +80,14 @@ NLDBL_DECL (__isoc99_vfwscanf);
 NLDBL_DECL (__isoc99_vswscanf);
 NLDBL_DECL (argp_error);
 NLDBL_DECL (argp_failure);
+NLDBL_DECL (warn);
+NLDBL_DECL (vwarn);
+NLDBL_DECL (warnx);
+NLDBL_DECL (vwarnx);
+NLDBL_DECL (err);
+NLDBL_DECL (verr);
+NLDBL_DECL (errx);
+NLDBL_DECL (verrx);
 
 /* These do not exist in the normal interface, but must exist in the
    __nldbl interface so that they can be called from libnldbl.  */