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Diffstat (limited to 'ACE/ace/config-g++-common.h')
| -rw-r--r-- | ACE/ace/config-g++-common.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/ACE/ace/config-g++-common.h b/ACE/ace/config-g++-common.h new file mode 100644 index 00000000000..0886e0442a0 --- /dev/null +++ b/ACE/ace/config-g++-common.h @@ -0,0 +1,118 @@ +// -*- C++ -*- +// +// $Id$ + +// This configuration file is designed to be included by another, +// specific configuration file. It provides config information common +// to all g++ platforms, including egcs. + +#ifndef ACE_GNUG_COMMON_H +#define ACE_GNUG_COMMON_H +#include /**/ "ace/pre.h" + +#define ACE_HAS_CPLUSPLUS_HEADERS +#define ACE_HAS_STDCPP_STL_INCLUDES +#define ACE_HAS_TEMPLATE_TYPEDEFS +#define ACE_HAS_TYPENAME_KEYWORD +#define ACE_HAS_STANDARD_CPP_LIBRARY 1 +#define ACE_HAS_TEMPLATE_SPECIALIZATION +#define ACE_HAS_WORKING_EXPLICIT_TEMPLATE_DESTRUCTOR +#define ACE_USES_STD_NAMESPACE_FOR_STDCPP_LIB 1 +#define ACE_TEMPLATES_REQUIRE_SOURCE + +#if ( __GNUC__ == 2 && __GNUC_MINOR__ < 97 ) + // gcc 2.97 and lower use old iostreams +# define ACE_USES_OLD_IOSTREAMS +#endif /* __GNUC__ >= 2.97 */ + +#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) +# define ACE_EXPLICIT_TEMPLATE_DESTRUCTOR_TAKES_ARGS +#endif /* __GNUC__ >= 3.4 */ + +#if (__GNUC__ < 3) +# define ACE_LACKS_MEMBER_TEMPLATES +#endif /* __GNUC__ < 3 */ + +// __EXCEPTIONS is defined with -fexceptions, the egcs default. It +// is not defined with -fno-exceptions, the ACE default for g++. +// ACE_HAS_EXCEPTIONS is defined in +// include/makeinclude/wrapper_macros.GNU, so this really isn't +// necessary. Just in case . . . +#if defined (__EXCEPTIONS) && !defined (ACE_HAS_EXCEPTIONS) +# define ACE_HAS_EXCEPTIONS +#endif /* __EXCEPTIONS && ! ACE_HAS_EXCEPTIONS */ + +#if defined (ACE_HAS_EXCEPTIONS) +# define ACE_NEW_THROWS_EXCEPTIONS +#endif /* ACE_HAS_EXCEPTIONS */ + +#if (defined (i386) || defined (__i386__)) && !defined (ACE_SIZEOF_LONG_DOUBLE) +# define ACE_SIZEOF_LONG_DOUBLE 12 +#endif /* i386 */ + +#if !defined (__MINGW32__) && (defined (i386) || defined (__i386__)) + // If running an Intel, assume that it's a Pentium so that + // ACE_OS::gethrtime () can use the RDTSC instruction. If running a + // 486 or lower, be sure to comment this out. (If not running an + // Intel CPU, this #define will not be seen because of the i386 + // protection, so it can be ignored.) +# define ACE_HAS_PENTIUM +#endif /* i386 */ + +// GNU g++ >= 4.x implements "#pragma once". +#if (__GNUC__ < 4) && !defined (ACE_LACKS_PRAGMA_ONCE) +// We define it with a -D with make depend. +# define ACE_LACKS_PRAGMA_ONCE +#endif /* ! ACE_LACKS_PRAGMA_ONCE */ + +// Take advantage of G++ (>= 4.x) visibility attributes to generate +// improved shared library binaries. +#if (__GNUC__ > 3) + +# if defined (ACE_HAS_CUSTOM_EXPORT_MACROS) && ACE_HAS_CUSTOM_EXPORT_MACROS == 0 +# undef ACE_HAS_CUSTOM_EXPORT_MACROS +# else +# ifndef ACE_HAS_CUSTOM_EXPORT_MACROS +# define ACE_HAS_CUSTOM_EXPORT_MACROS +# endif /* !ACE_HAS_CUSTOM_EXPORT_MACROS */ +# define ACE_Proper_Export_Flag __attribute__ ((visibility("default"))) +# define ACE_Proper_Import_Flag + +// Sadly, G++ 4.x silently ignores visibility attributes on +// template instantiations, which breaks singletons. +// As a workaround, we use the GCC visibility pragmas. +// And to make them fit in a macro, we use C99's _Pragma() +// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17470 +# if 0 /* ... replace if/when gcc bug 17470 is fixed */ +# define ACE_EXPORT_SINGLETON_DECLARATION(T) template class ACE_Proper_Export_Flag T +# define ACE_EXPORT_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK) template class ACE_Proper_Export_Flag SINGLETON_TYPE <CLASS, LOCK>; +# else /* ! GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS */ +# define ACE_EXPORT_SINGLETON_DECLARATION(T) \ + _Pragma ("GCC visibility push(default)") \ + template class T \ + _Pragma ("GCC visibility pop") +# define ACE_EXPORT_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK) \ + _Pragma ("GCC visibility push(default)") \ + template class SINGLETON_TYPE<CLASS, LOCK>; \ + _Pragma ("GCC visibility pop") +# endif /* ! GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS */ + +// Note that the "__extension__" is needed to prevent g++ from issuing +// an error when using its "-pedantic" command line flag. +# define ACE_IMPORT_SINGLETON_DECLARATION(T) __extension__ extern template class T +# define ACE_IMPORT_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK) __extension__ extern template class SINGLETON_TYPE<CLASS, LOCK>; + + +# endif /* ACE_HAS_CUSTOM_EXPORT_MACROS == 0 */ +#endif /* __GNU__ > 3 */ + +#if defined (ACE_HAS_GNU_REPO) + // -frepo causes unresolved symbols of basic_string left- and + // right-shift operators with ACE_HAS_STRING_CLASS. +# if defined (ACE_HAS_STRING_CLASS) +# undef ACE_HAS_STRING_CLASS +# endif /* ACE_HAS_STRING_CLASS */ +#endif /* ! ACE_HAS_GNU_REPO */ + +#include /**/ "ace/post.h" +#endif /* ACE_GNUG_COMMON_H */ |