make UCLIBC_HAS_PROGRAM_INVOCATION_NAME and UCLIBC_HAS___PROGNAME independent options

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

extra/Configs/Config.in

@@ -745,7 +745,6 @@ config UCLIBC_HAS_PROGRAM_INVOCATION_NAME
 config UCLIBC_HAS___PROGNAME
 	bool "Support for __progname"
 	default y
-	depends on UCLIBC_HAS_PROGRAM_INVOCATION_NAME
 	help
 	  Some packages (like openssh) like to peek into internal libc
 	  symbols to make their output a bit more user friendly.

include/errno.h

@@ -47,6 +47,9 @@ __BEGIN_DECLS
 extern int errno;
 #endif
 
+#ifdef _LIBC
+extern const char *__progname, *__progname_full;
+#endif
 #if defined __USE_GNU && defined __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__
 
 /* The full and simple forms of the name with which the program was

libc/misc/internals/__uClibc_main.c

@@ -140,14 +140,19 @@ extern void (*__fini_array_end []) (void) attribute_hidden;
 # endif
 #endif
 
-attribute_hidden const char *__uclibc_progname = "";
-#ifdef __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__
-const char *program_invocation_short_name = "";
-const char *program_invocation_name = "";
+const char *__uclibc_progname = "";
+#if !defined __UCLIBC_HAS___PROGNAME__ && defined __USE_GNU && defined __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__
+# define __progname program_invocation_short_name
+# define __progname_full program_invocation_name
 #endif
-#ifdef __UCLIBC_HAS___PROGNAME__
-weak_alias (program_invocation_short_name, __progname)
-weak_alias (program_invocation_name, __progname_full)
+#if defined __UCLIBC_HAS___PROGNAME__ || (defined __USE_GNU && defined __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__)
+const char *__progname = "";
+/* psm: why have a visible __progname_full? */
+const char *__progname_full = "";
+# if defined __UCLIBC_HAS___PROGNAME__ && defined __USE_GNU && defined __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__
+weak_alias (__progname, program_invocation_short_name)
+weak_alias (__progname_full, program_invocation_name)
+# endif
 #endif
 
 /*
@@ -380,14 +385,14 @@ void __uClibc_main(int (*main)(int, char **, char **), int argc,
 #endif
 
     __uclibc_progname = *argv;
-#ifdef __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__
+#if defined __UCLIBC_HAS___PROGNAME__ || (defined __USE_GNU && defined __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__)
     if (*argv != NULL) {
-	program_invocation_name = *argv;
-	program_invocation_short_name = strrchr(*argv, '/');
-	if (program_invocation_short_name != NULL)
-	    ++program_invocation_short_name;
+	__progname_full = *argv;
+	__progname = strrchr(*argv, '/');
+	if (__progname != NULL)
+	    ++__progname;
 	else
-	    program_invocation_short_name = program_invocation_name;
+	    __progname = *argv;
     }
 #endif
 

utils/getconf.c

@@ -1053,10 +1053,8 @@ static const struct { const char *name; int num; } specs[] =
   };
 static const int nspecs = sizeof (specs) / sizeof (specs[0]);
 
-#ifdef __UCLIBC_HAS___PROGNAME__
-extern const char *__progname;
-#else
-#define __progname "foo"
+#ifndef __UCLIBC_HAS___PROGNAME__
+static const char *__progname = "getconf"
 #endif
 
 static attribute_noreturn void