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patches/gcc: Backport fix for building gcc-5 with gcc-6

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69959

...was observed while trying to build gcc-5.3.0 on latest (at the time
of this change) archlinux using gcc-6.1.1.

This patch fixes the issue.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
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bhundven committed May 13, 2016
1 parent cd39285 commit 5a5fcbe148acf35372ecac145816c3515e6b8839
Showing with 151 additions and 0 deletions.
  1. +151 −0 patches/gcc/5.3.0/130-build_gcc-5_with_gcc-6.patch
@@ -0,0 +1,151 @@
From 1e5f1089dec3af328fd03125d6778f666d0bd4e4 Mon Sep 17 00:00:00 2001
From: edlinger <edlinger@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 25 Feb 2016 15:33:50 +0000
Subject: [PATCH 1/1] 2016-02-25 Bernd Edlinger <bernd.edlinger@hotmail.de>

Backported from mainline
2016-02-19 Jakub Jelinek <jakub@redhat.com>
Bernd Edlinger <bernd.edlinger@hotmail.de>

* Make-lang.in: Invoke gperf with -L C++.
* cfns.gperf: Remove prototypes for hash and libc_name_p
inlines.
* cfns.h: Regenerated.
* except.c (nothrow_libfn_p): Adjust.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-5-branch@233720 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/cp/Make-lang.in | 2 +-
gcc/cp/cfns.gperf | 10 ++--------
gcc/cp/cfns.h | 41 ++++++++++++++---------------------------
gcc/cp/except.c | 3 ++-
5 files changed, 31 insertions(+), 37 deletions(-)

diff --git a/gcc/cp/Make-lang.in b/gcc/cp/Make-lang.in
index e98beb1..b09fb02 100644
--- a/gcc/cp/Make-lang.in
+++ b/gcc/cp/Make-lang.in
@@ -111,7 +111,7 @@ else
# deleting the $(srcdir)/cp/cfns.h file.
$(srcdir)/cp/cfns.h:
endif
- gperf -o -C -E -k '1-6,$$' -j1 -D -N 'libc_name_p' -L ANSI-C \
+ gperf -o -C -E -k '1-6,$$' -j1 -D -N 'libc_name_p' -L C++ \
$(srcdir)/cp/cfns.gperf --output-file $(srcdir)/cp/cfns.h

#
diff --git a/gcc/cp/cfns.gperf b/gcc/cp/cfns.gperf
index 68acd3d..214ecf6 100644
--- a/gcc/cp/cfns.gperf
+++ b/gcc/cp/cfns.gperf
@@ -1,3 +1,5 @@
+%language=C++
+%define class-name libc_name
%{
/* Copyright (C) 2000-2015 Free Software Foundation, Inc.

@@ -16,14 +18,6 @@ for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
-#ifdef __GNUC__
-__inline
-#endif
-static unsigned int hash (const char *, unsigned int);
-#ifdef __GNUC__
-__inline
-#endif
-const char * libc_name_p (const char *, unsigned int);
%}
%%
# The standard C library functions, for feeding to gperf; the result is used
diff --git a/gcc/cp/cfns.h b/gcc/cp/cfns.h
index 1c6665d..596f413 100644
--- a/gcc/cp/cfns.h
+++ b/gcc/cp/cfns.h
@@ -1,5 +1,5 @@
-/* ANSI-C code produced by gperf version 3.0.3 */
-/* Command-line: gperf -o -C -E -k '1-6,$' -j1 -D -N libc_name_p -L ANSI-C cfns.gperf */
+/* C++ code produced by gperf version 3.0.4 */
+/* Command-line: gperf -o -C -E -k '1-6,$' -j1 -D -N libc_name_p -L C++ --output-file cfns.h cfns.gperf */

#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
&& ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
@@ -28,7 +28,7 @@
#error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
#endif

-#line 1 "cfns.gperf"
+#line 3 "cfns.gperf"

/* Copyright (C) 2000-2015 Free Software Foundation, Inc.

@@ -47,25 +47,18 @@ for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
-#ifdef __GNUC__
-__inline
-#endif
-static unsigned int hash (const char *, unsigned int);
-#ifdef __GNUC__
-__inline
-#endif
-const char * libc_name_p (const char *, unsigned int);
/* maximum key range = 391, duplicates = 0 */

-#ifdef __GNUC__
-__inline
-#else
-#ifdef __cplusplus
-inline
-#endif
-#endif
-static unsigned int
-hash (register const char *str, register unsigned int len)
+class libc_name
+{
+private:
+ static inline unsigned int hash (const char *str, unsigned int len);
+public:
+ static const char *libc_name_p (const char *str, unsigned int len);
+};
+
+inline unsigned int
+libc_name::hash (register const char *str, register unsigned int len)
{
static const unsigned short asso_values[] =
{
@@ -122,14 +115,8 @@ hash (register const char *str, register unsigned int len)
return hval + asso_values[(unsigned char)str[len - 1]];
}

-#ifdef __GNUC__
-__inline
-#ifdef __GNUC_STDC_INLINE__
-__attribute__ ((__gnu_inline__))
-#endif
-#endif
const char *
-libc_name_p (register const char *str, register unsigned int len)
+libc_name::libc_name_p (register const char *str, register unsigned int len)
{
enum
{
diff --git a/gcc/cp/except.c b/gcc/cp/except.c
index 3ff1ce6..2f2e396 100644
--- a/gcc/cp/except.c
+++ b/gcc/cp/except.c
@@ -1040,7 +1040,8 @@ nothrow_libfn_p (const_tree fn)
unless the system headers are playing rename tricks, and if
they are, we don't want to be confused by them. */
id = DECL_NAME (fn);
- return !!libc_name_p (IDENTIFIER_POINTER (id), IDENTIFIER_LENGTH (id));
+ return !!libc_name::libc_name_p (IDENTIFIER_POINTER (id),
+ IDENTIFIER_LENGTH (id));
}

/* Returns nonzero if an exception of type FROM will be caught by a
--
1.7.1

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