3 files changed, 11 insertions, 6 deletions
diff --git a/argp/argp-eexst.c b/argp/argp-eexst.c
index 676d1ec517..9040058e4a 100644
--- a/argp/argp-eexst.c
+++ b/argp/argp-eexst.c
@@ -22,8 +22,11 @@
 #include <config.h>
 #endif
 
+#include <sysexits.h>
+
 #include "argp.h"
 
 /* The exit status that argp will use when exiting due to a parsing error.
-   If not defined or set by the user program, this defaults to 1.  */
-error_t argp_err_exit_status = 1;
+   If not defined or set by the user program, this defaults to EX_USAGE from
+   <sysexits.h>.  */
+error_t argp_err_exit_status = EX_USAGE;
diff --git a/argp/argp-help.c b/argp/argp-help.c
index ed934e0e3a..b17c56d3a5 100644
--- a/argp/argp-help.c
+++ b/argp/argp-help.c
@@ -658,12 +658,12 @@ canon_doc_option (const char **name)
 {
   int non_opt;
   /* Skip initial whitespace.  */
-  while (isspace (*name))
+  while (isspace (**name))
     (*name)++;
   /* Decide whether this looks like an option (leading `-') or not.  */
   non_opt = (**name != '-');
   /* Skip until part of name used for sorting.  */
-  while (**name && !isalnum (*name))
+  while (**name && !isalnum (**name))
     (*name)++;
   return non_opt;
 }
@@ -1612,7 +1612,7 @@ weak_alias (__argp_state_help, argp_state_help)
 
 /* If appropriate, print the printf string FMT and following args, preceded
    by the program name and `:', to stderr, and followed by a `Try ... --help'
-   message, then exit (ARGP_ERR_EXIT_STATUS).  */
+   message, then exit (1).  */
 void
 __argp_error (const struct argp_state *state, const char *fmt, ...)
 {
diff --git a/argp/argp.h b/argp/argp.h
index d418253692..6f430d4c23 100644
--- a/argp/argp.h
+++ b/argp/argp.h
@@ -34,6 +34,7 @@
 
 #ifndef __error_t_defined
 typedef int error_t;
+#define __error_t_defined
 #endif
 
 #ifndef __P
@@ -397,7 +398,8 @@ extern void (*argp_program_version_hook) __P ((FILE *__stream,
 __const extern char *argp_program_bug_address;
 
 /* The exit status that argp will use when exiting due to a parsing error.
-   If not defined or set by the user program, this defaults to 1.  */
+   If not defined or set by the user program, this defaults to EX_USAGE from
+   <sysexits.h>.  */
 extern error_t argp_err_exit_status;
 
 /* Flags for argp_help.  */