1 files changed, 92 insertions, 0 deletions
diff --git a/REORG.TODO/misc/regexp.c b/REORG.TODO/misc/regexp.c
new file mode 100644
index 0000000000..19d76c0c37
--- /dev/null
+++ b/REORG.TODO/misc/regexp.c
@@ -0,0 +1,92 @@
+/* Compatibility symbols for the obsolete <regexp.h> interface.
+   Copyright (C) 1996-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* regexp.h now contains only an #error directive, so it cannot be
+   used in this file.
+
+   The function that would produce an 'expbuf' to use as the second
+   argument to 'step' and 'advance' was defined only in regexp.h,
+   as its definition depended on macros defined by the user.  */
+
+#include <regex.h>
+#include <shlib-compat.h>
+
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_23)
+
+/* Define the variables used for the interface.  */
+char *loc1;
+char *loc2;
+compat_symbol (libc, loc1, loc1, GLIBC_2_0);
+compat_symbol (libc, loc2, loc2, GLIBC_2_0);
+
+/* Although we do not support the use we define this variable as well.  */
+char *locs;
+compat_symbol (libc, locs, locs, GLIBC_2_0);
+
+
+/* Find the next match in STRING.  The compiled regular expression is
+   found in the buffer starting at EXPBUF.  `loc1' will return the
+   first character matched and `loc2' points to the next unmatched
+   character.  */
+int
+weak_function attribute_compat_text_section
+step (const char *string, const char *expbuf)
+{
+  regmatch_t match;	/* We only need info about the full match.  */
+
+  expbuf += __alignof (regex_t *);
+  expbuf -= (expbuf - ((const char *) 0)) % __alignof__ (regex_t *);
+
+  if (__regexec ((const regex_t *) expbuf, string, 1, &match, REG_NOTEOL)
+      == REG_NOMATCH)
+    return 0;
+
+  loc1 = (char *) string + match.rm_so;
+  loc2 = (char *) string + match.rm_eo;
+  return 1;
+}
+compat_symbol (libc, step, step, GLIBC_2_0);
+
+
+/* Match the beginning of STRING with the compiled regular expression
+   in EXPBUF.  If the match is successful `loc2' will contain the
+   position of the first unmatched character.  */
+int
+weak_function attribute_compat_text_section
+advance (const char *string, const char *expbuf)
+{
+  regmatch_t match;	/* We only need info about the full match.  */
+
+  expbuf += __alignof__ (regex_t *);
+  expbuf -= (expbuf - ((const char *) 0)) % __alignof__ (regex_t *);
+
+  if (__regexec ((const regex_t *) expbuf, string, 1, &match, REG_NOTEOL)
+      == REG_NOMATCH
+      /* We have to check whether the check is at the beginning of the
+	 buffer.  */
+      || match.rm_so != 0)
+    return 0;
+
+  loc2 = (char *) string + match.rm_eo;
+  return 1;
+}
+compat_symbol (libc, advance, advance, GLIBC_2_0);
+
+
+#endif /* SHLIB_COMPAT (2.0, 2.23) */