diff --git a/headers/posix/langinfo.h b/headers/posix/langinfo.h
deleted file mode 100644
index 0bea057cec..0000000000
--- a/headers/posix/langinfo.h
+++ /dev/null
@@ -1,84 +0,0 @@
-#ifndef _LANGINFO_H_
-#define	_LANGINFO_H_
-
-#include <LocaleStrings.h>
-#include <nl_types.h>
-
-#define	CODESET		B_CODESET			/* codeset name */
-#define	D_T_FMT		B_DATE_TIME_FORMAT	/* string for formatting date and time */
-#define	D_FMT		B_DATE_FORMAT		/* date format string */
-#define	T_FMT		B_TIME_FORMAT		/* time format string */
-#define	T_FMT_AMPM	B_AM_PM_TIME_FORMAT	/* a.m. or p.m. time formatting string */
-#define	AM_STR		B_AM_STRING			/* Ante Meridian affix */
-#define	PM_STR		B_PM_STRING			/* Post Meridian affix */
-
-/* week day names */
-#define	DAY_1		B_DAY_1
-#define	DAY_2		B_DAY_2
-#define	DAY_3		B_DAY_3
-#define	DAY_4		B_DAY_4
-#define	DAY_5		B_DAY_5
-#define	DAY_6		B_DAY_6
-#define	DAY_7		B_DAY_7
-
-/* abbreviated week day names */
-#define	ABDAY_1		B_AB_DAY_1
-#define	ABDAY_2		B_AB_DAY_2
-#define	ABDAY_3		B_AB_DAY_3
-#define	ABDAY_4		B_AB_DAY_4
-#define	ABDAY_5		B_AB_DAY_5
-#define	ABDAY_6		B_AB_DAY_6
-#define	ABDAY_7		B_AB_DAY_7
-
-/* month names */
-#define	MON_1		B_MON_1
-#define	MON_2		B_MON_2
-#define	MON_3		B_MON_3
-#define	MON_4		B_MON_4
-#define	MON_5		B_MON_5
-#define	MON_6		B_MON_6
-#define	MON_7		B_MON_7
-#define	MON_8		B_MON_8
-#define	MON_9		B_MON_9
-#define	MON_10		B_MON_10
-#define	MON_11		B_MON_11
-#define	MON_12		B_MON_12
-
-/* abbreviated month names */
-#define	ABMON_1		B_AB_MON_1
-#define	ABMON_2		B_AB_MON_2
-#define	ABMON_3		B_AB_MON_3
-#define	ABMON_4		B_AB_MON_4
-#define	ABMON_5		B_AB_MON_5
-#define	ABMON_6		B_AB_MON_6
-#define	ABMON_7		B_AB_MON_7
-#define	ABMON_8		B_AB_MON_8
-#define	ABMON_9		B_AB_MON_9
-#define	ABMON_10	B_AB_MON_10
-#define	ABMON_11	B_AB_MON_11
-#define	ABMON_12	B_AB_MON_12
-
-#define	ERA			B_ERA					/* era description segments */
-#define	ERA_D_FMT	B_ERA_DATE_FORMAT		/* era date format string */
-#define	ERA_D_T_FMT	B_ERA_DATE_TIME_FORMAT	/* era date and time format string */
-#define	ERA_T_FMT	B_TIME_FORMAT			/* era time format string */
-#define	ALT_DIGITS	B_ALT_DIGITS			/* alternative symbols for digits */
-
-#define	RADIXCHAR	B_DECIMAL_POINT			/* radix char */
-#define	THOUSEP		B_THOUSANDS_SEPARATOR	/* separator for thousands */
-
-#define	YESEXPR		B_YES_EXPRESSION		/* affirmative response expression */
-#define	NOEXPR		B_NO_EXPRESSION			/* negative response expression */
-#define	YESSTR		B_YES_STRING			/* affirmative response for yes/no queries */
-#define	NOSTR		B_NO_STRING				/* negative response for yes/no queries */
-
-#define	CRNCYSTR	B_CURRENCY_SYMBOL		/* currency symbol */
-
-//#define	D_MD_ORDER	57	/* month/day order (local extension) */
-
-#ifdef __cplusplus
-extern "C"
-#endif
-char *nl_langinfo(nl_item);
-
-#endif	/* _LANGINFO_H_ */
diff --git a/headers/posix/monetary.h b/headers/posix/monetary.h
deleted file mode 100644
index 92f32528a9..0000000000
--- a/headers/posix/monetary.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef _MONETARY_H_
-#define _MONETARY_H_
-
-#include <stdarg.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-ssize_t strfmon(char *string, size_t maxSize, const char *format, ...);
-ssize_t vstrfmon(char *string, size_t maxSize, const char *format, va_list args);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif	/* _MONETARY_H_ */
diff --git a/headers/posix/nl_types.h b/headers/posix/nl_types.h
deleted file mode 100644
index 35857a652f..0000000000
--- a/headers/posix/nl_types.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef _NL_TYPES_H_
-#define _NL_TYPES_H_
-/* 
-** Distributed under the terms of the OpenBeOS License.
-*/
-
-
-#define	NL_SETD			0
-#define	NL_CAT_LOCALE	1
-
-typedef	int nl_item;
-typedef	void *nl_catd;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern nl_catd catopen(const char *name, int oflag);
-extern char *catgets(nl_catd cat, int setID, int msgID, const char *defaultMessage);
-extern int catclose(nl_catd cat);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif	/* _NL_TYPES_H_ */