This change makes it possible to enable stdcxx C++ 0x extensions
by using the -std=c++0x (or -std=gnu++0x) gcc command line option.
Specifically, it's possible to use these extensions with a library
configured w/o the option simply by setting CXXOPTS=-std=c++0x on
the make command line.
-------- Original Message --------
Subject: svn commit: r675809 -
/stdcxx/branches/4.3.x/include/rw/_config-gcc.h
Date: Thu, 10 Jul 2008 23:35:45 -0000
From: [EMAIL PROTECTED]
Reply-To: dev@stdcxx.apache.org
To: [EMAIL PROTECTED]
Author: sebor
Date: Thu Jul 10 16:35:45 2008
New Revision: 675809
URL: http://svn.apache.org/viewvc?rev=675809&view=rev
Log:
2008-07-10 Martin Sebor <[EMAIL PROTECTED]>
* include/rw/_config-gcc.h [gcc >= 4.3 && __GXX_EXPERIMENTAL_CXX0X__]
(_RWSTD_NO_VARIADIC_TEMPLATES, _RWSTD_NO_RVALUE_REFERENCES): Undefined
to make it possible to use C++ 0x library extensions even in builds
configured w/o C++ 0x extensions enabled in the compiler.
(_RWSTD_EXT_CXX_0X): #defined in response to either of the -std=c++0x
or -std=gnu++0x options.
Modified:
stdcxx/branches/4.3.x/include/rw/_config-gcc.h
Modified: stdcxx/branches/4.3.x/include/rw/_config-gcc.h
URL:
http://svn.apache.org/viewvc/stdcxx/branches/4.3.x/include/rw/_config-gcc.h?rev=675809&r1=675808&r2=675809&view=diff
==============================================================================
--- stdcxx/branches/4.3.x/include/rw/_config-gcc.h (original)
+++ stdcxx/branches/4.3.x/include/rw/_config-gcc.h Thu Jul 10 16:35:45 2008
@@ -200,5 +200,20 @@
# define _RWSTD_TT_MAX_ALIGNMENT 16
# define _RWSTD_TT_ALIGNED_POD(N) \
struct { unsigned char _C_align __attribute__ ((aligned ((N)))); }
+
+# ifdef __GXX_EXPERIMENTAL_CXX0X__
+ // enable C++ 0x features disabled in builds
+ // configured without -std=c++0x or -std=gnu++0x
+
+ // C++ 0x features supported since 4.3.0
+# undef _RWSTD_NO_VARIADIC_TEMPLATES
+# undef _RWSTD_NO_RVALUE_REFERENCES
+
+# ifndef _RWSTD_EXT_CXX_0X
+ // enable our C++ 0x extensions in GNU gcc C++ 0x mode
+# define _RWSTD_EXT_CXX_0X
+# endif
+# endif
+
#endif // __GNUC__ >= 4.3
