[binutils-gdb] include: Define macro to ignore -Wdeprecated-declarations on GCC

[Tsukasa OI <a4lg@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=56d4450bdfc873ff3c2d1ebb194c7a076d4d13f6

commit 56d4450bdfc873ff3c2d1ebb194c7a076d4d13f6
Author: Tsukasa OI <research_trasio@irq.a4lg.com>
Date:   Thu Oct 27 04:33:37 2022 +0000

    include: Define macro to ignore -Wdeprecated-declarations on GCC
    
    "-Wdeprecated-declarations" warning option can be helpful to track
    deprecated function delarations but sometimes we need to disable this
    warning for a good reason.
    
    DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS is an existing macro but only
    defined on Clang.  Since "-Wdeprecated-declarations" is also available on
    GCC (>= 3.4.0), this commit adds equivalent definition as Clang.
    
    __GNUC__ and __GNUC_MINOR__ are not checked because this header file seems
    to assume GCC >= 4.6 (with "GCC diagnostic push/pop").
    
    include/ChangeLog:
    
            * diagnostics.h (DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS):
            Define also on GCC.

Diff:
---
 include/diagnostics.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/diagnostics.h b/include/diagnostics.h
index c1a2e8f520c..3a75f4e2719 100644
--- a/include/diagnostics.h
+++ b/include/diagnostics.h
@@ -78,6 +78,9 @@
 
 #elif defined (__GNUC__) /* GCC */
 
+# define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS \
+  DIAGNOSTIC_IGNORE ("-Wdeprecated-declarations")
+
 # if __GNUC__ >= 7
 #  define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \
    DIAGNOSTIC_IGNORE ("-Wregister")