1 files changed, 45 insertions, 0 deletions
diff --git a/include/regex.h b/include/regex.h
index 22bfc89e77..81789be897 100644
--- a/include/regex.h
+++ b/include/regex.h
@@ -1 +1,46 @@
+#ifndef _REGEX_H
 #include <posix/regex.h>
+
+/* Document internal interfaces.  */
+extern reg_syntax_t __re_set_syntax _RE_ARGS ((reg_syntax_t syntax));
+
+extern const char *__re_compile_pattern
+  _RE_ARGS ((const char *pattern, size_t length,
+             struct re_pattern_buffer *buffer));
+
+extern int __re_compile_fastmap _RE_ARGS ((struct re_pattern_buffer *buffer));
+
+extern int __re_search
+  _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string,
+            int length, int start, int range, struct re_registers *regs));
+
+extern int __re_search_2
+  _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string1,
+             int length1, const char *string2, int length2,
+             int start, int range, struct re_registers *regs, int stop));
+
+extern int __re_match
+  _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string,
+             int length, int start, struct re_registers *regs));
+
+extern int __re_match_2
+  _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string1,
+             int length1, const char *string2, int length2,
+             int start, struct re_registers *regs, int stop));
+
+extern void __re_set_registers
+  _RE_ARGS ((struct re_pattern_buffer *buffer, struct re_registers *regs,
+             unsigned num_regs, regoff_t *starts, regoff_t *ends));
+
+extern int __regcomp _RE_ARGS ((regex_t *__preg, const char *__pattern,
+				int __cflags));
+
+extern int __regexec _RE_ARGS ((const regex_t *__preg,
+				const char *__string, size_t __nmatch,
+				regmatch_t __pmatch[], int __eflags));
+
+extern size_t __regerror _RE_ARGS ((int __errcode, const regex_t *__preg,
+				    char *__errbuf, size_t __errbuf_size));
+
+extern void __regfree _RE_ARGS ((regex_t *__preg));
+#endif