alpha.h (CPP_SPEC): Don't define __LANGUAGE_C and variants for .cpp/.cp/.c++ files.

	* config/alpha/alpha.h (CPP_SPEC): Don't define __LANGUAGE_C and
	variants for .cpp/.cp/.c++ files.
	Move definition of __LANGUAGE_C_PLUS_PLUS ...
	(CPLUSPLUS_CPP_SPEC): ... here.

From-SVN: r43190

gcc/ChangeLog

+2001-06-11  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
+
+	* config/alpha/alpha.h (CPP_SPEC): Don't define __LANGUAGE_C and
+	variants for .cpp/.cp/.c++ files. 
+	Move definition of __LANGUAGE_C_PLUS_PLUS ...
+	(CPLUSPLUS_CPP_SPEC): ... here.
+
 Mon Jun 11 15:47:45 CEST 2001  Jan Hubicka  <jh@suse.cz>
 
 	* jump.c (duplicate_loop_exit_test): Fix loop header heuristics.

gcc/config/alpha/alpha.h

@@ -21,14 +21,20 @@ the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
 
+/* For C++ we need to ensure that __LANGUAGE_C_PLUS_PLUS is defined independent
+   of the source file extension.  */
+#define CPLUSPLUS_CPP_SPEC "\
+-D__LANGUAGE_C_PLUS_PLUS__ -D__LANGUAGE_C_PLUS_PLUS -D__cplusplus \
+%(cpp) \
+"
+
 /* Write out the correct language type definition for the header files.  
    Unless we have assembler language, write out the symbols for C.  */
 #define CPP_SPEC "\
 %{!undef:\
 %{.S:-D__LANGUAGE_ASSEMBLY__ -D__LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY }}\
-%{.cc|.cxx|.C:-D__LANGUAGE_C_PLUS_PLUS__ -D__LANGUAGE_C_PLUS_PLUS -D__cplusplus }\
 %{.m:-D__LANGUAGE_OBJECTIVE_C__ -D__LANGUAGE_OBJECTIVE_C }\
-%{!.S:%{!.cc:%{!.cxx:%{!.C:%{!.m:-D__LANGUAGE_C__ -D__LANGUAGE_C %{!ansi:-DLANGUAGE_C }}}}}}\
+%{!.S:%{!.cc:%{!.cxx:%{!.cpp:%{!.cp:%{!.c++:%{!.C:%{!.m:-D__LANGUAGE_C__ -D__LANGUAGE_C %{!ansi:-DLANGUAGE_C }}}}}}}}}\
 %{mieee:-D_IEEE_FP }\
 %{mieee-with-inexact:-D_IEEE_FP -D_IEEE_FP_INEXACT }}\
 %(cpp_cpu) %(cpp_subtarget)"