Gabe Black has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/45759 )
Change subject: Example of how to check if code is legal with scons.
......................................................................
Example of how to check if code is legal with scons.
Change-Id: I7d69f364b72859a6f00c29deda95c53f80089c4d
---
M src/base/SConsopts
M src/base/compiler.hh
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/src/base/SConsopts b/src/base/SConsopts
index 9b301c3..2fd2113 100644
--- a/src/base/SConsopts
+++ b/src/base/SConsopts
@@ -56,10 +56,16 @@
# alternative stacks.
conf.env['HAVE_VALGRIND'] = conf.CheckCHeader('valgrind/valgrind.h')
+ conf.env['HAVE_DEPRECATED_NAMESPACE'] = conf.TryCompile('''
+ int main() {return 0;}
+ namespace [[deprecated]] test_namespace {}
+ ''', '.cc')
+
sticky_vars.Add(BoolVariable('USE_POSIX_CLOCK', 'Use POSIX Clocks',
have_posix_clock))
export_vars.extend([
- 'HAVE_FENV', 'HAVE_PNG', 'USE_POSIX_CLOCK', 'HAVE_VALGRIND'])
+ 'HAVE_FENV', 'HAVE_PNG', 'USE_POSIX_CLOCK', 'HAVE_VALGRIND',
+ 'HAVE_DEPRECATED_NAMESPACE'])
diff --git a/src/base/compiler.hh b/src/base/compiler.hh
index 4ea0dbb..76829a0 100644
--- a/src/base/compiler.hh
+++ b/src/base/compiler.hh
@@ -43,8 +43,15 @@
#include <memory>
+#include "config/have_deprecated_namespace.hh"
+
// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
+#if HAVE_DEPRECATED_NAMESPACE
+#error "Has deprecated namespaces"
+#else
+#error "Doesn't have deprecated namespaces"
+#endif
/*
* Attributes that become standard in later versions of c++.
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I7d69f364b72859a6f00c29deda95c53f80089c4d
Gerrit-Change-Number: 45759
Gerrit-PatchSet: 1
Gerrit-Owner: Gabe Black <[email protected]>
Gerrit-MessageType: newchange
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