hurd: Fix build

[thirdparty/glibc.git] / misc / regexp.c

diff --git a/misc/regexp.c b/misc/regexp.c
index ebd0bf7649a507d526e7f33d017d13d8378b4bb0..9929dfbfa6d1ccb57df832ee952bd4c37df0357e 100644 (file)
--- a/misc/regexp.c
+++ b/misc/regexp.c
@@ -1,5 +1,5 @@
-/* Define function and variables for the obsolete <regexp.h> interface.
-   Copyright (C) 1996, 2000 Free Software Foundation, Inc.
+/* Compatibility symbols for the obsolete <regexp.h> interface.
+   Copyright (C) 1996-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -14,28 +14,40 @@
    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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
 
-#define __DO_NOT_DEFINE_COMPILE
-#include <regexp.h>
+/* regexp.h now contains only an #error directive, so it cannot be
+   used in this file.
 
-/* Define the variables used for the interface.  */
-char *loc1;
-char *loc2;
+   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.  Avoid .symver on common
+   symbol, which just creates a new common symbol, not an alias.  */
+char *loc1 __attribute__ ((nocommon));
+char *loc2 __attribute__ ((nocommon));
+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;
+char *locs __attribute__ ((nocommon));
+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.  */
-extern int __step (const char *string, const char *expbuf);
 int
-__step (const char *string, const char *expbuf)
+weak_function attribute_compat_text_section
+step (const char *string, const char *expbuf)
 {
   regmatch_t match;    /* We only need info about the full match.  */
 
@@ -50,15 +62,15 @@ __step (const char *string, const char *expbuf)
   loc2 = (char *) string + match.rm_eo;
   return 1;
 }
-weak_alias (__step, step)
+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.  */
-extern int __advance (const char *string, const char *expbuf);
 int
-__advance (const char *string, const char *expbuf)
+weak_function attribute_compat_text_section
+advance (const char *string, const char *expbuf)
 {
   regmatch_t match;    /* We only need info about the full match.  */
 
@@ -75,4 +87,7 @@ __advance (const char *string, const char *expbuf)
   loc2 = (char *) string + match.rm_eo;
   return 1;
 }
-weak_alias (__advance, advance)
+compat_symbol (libc, advance, advance, GLIBC_2_0);
+
+
+#endif /* SHLIB_COMPAT (2.0, 2.23) */