Adds grist to the LIBGCC_OBJECTS files.

Added UnarchiveObjects rule that dearchives "ar"-archives.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8311 a95241bf-73f2-0310-859d-f6bbb57e9c96

Jamrules

@@ -70,6 +70,9 @@ GCC_VERSION = ;
 # Save the platform default headers.
 PLATFORM_DEFAULT_HEADERS = $(HDRS) ;
 
+# Add some grist to the libgcc objects
+LIBGCC_OBJECTS = $(LIBGCC_OBJECTS:G=libgcc) ;
+
 # We do not include any local BeOS system headers by default
 CCFLAGS += -nostdinc ;
 C++FLAGS += -nostdinc ;
@@ -1512,6 +1515,22 @@ actions Bison1
 	[ -f $(1[1]).h ] && mv $(1[1]).h $(1[2]) || true
 }
 
+rule UnarchiveObjects
+{
+	# UnarchiveObjects <target objects> : <static object>
+
+	MakeLocate $(1) : $(LOCATE_TARGET) ;
+	Depends $(2) : $(1) ;
+	SEARCH on $(2) = $(SEARCH_SOURCE) ;
+}
+
+actions UnarchiveObjects
+{
+	cd `dirname $(1[1])`
+	ar -x "$(2)" $(1)
+	cd -
+}
+
 # BeOS specific rules
 
 rule XRes