Ticket #6997: gcc.jam.patch

(a) boost_1_49_0b/tools/build/v2/tools/gcc.jam vs. (b) gcc.jam.patch

@@ -61 +61 @@
 # The compiler command to use is detected in a three step manner:
 # 1) If an explicit command is specified by the user, it will be used and must available.
 # 2) If only a certain version is specified, it is enforced:
-#    - either a command 'g++-VERSION' must be available
+#    - either a command 'g++VERSION' must be available
 #    - or the default command 'g++' must be available and match the exact version.
 # 3) Without user-provided restrictions use default 'g++'
 rule init ( version ? : command * : options * )
@@ -81 +81 @@
     #2): enforce user-provided version
     else if $(version)
     {
-        tool-command  =  [ common.get-invocation-command-nodefault gcc : "g++-$(version[1])" ] ;
+        tool-command  =  [ common.get-invocation-command-nodefault gcc : "g++$(version[1])" ] ;
         
         #2.1) fallback: check whether "g++" reports the requested version
         if ! $(tool-command)
@@ -103 +103 @@
                     if $(stripped) != $(version)
                     {                                            
                         errors.error "toolset gcc initialization:" :
-                          "version '$(version)' requested but 'g++-$(version)' not found and version '$(tool-version)' of default '$(tool-command)' does not match" :
+                          "version '$(version)' requested but 'g++$(version)' not found and version '$(tool-version)' of default '$(tool-command)' does not match" :
                             "initialized from" [ errors.nearest-user-location ] ;
                         tool-command = ;
                     }
@@ -114 +114 @@
             else
             {
                 errors.error "toolset gcc initialization:" :
-                             "version '$(version)' requested but neither 'g++-$(version)' nor default 'g++' found" :
+                             "version '$(version)' requested but neither 'g++$(version)' nor default 'g++' found" :
                              "initialized from" [ errors.nearest-user-location ] ;
             }
         }