Re-apply cf0a957 for the build-version of libbe.

* fixes build on non-Haiku platforms

headers/build/os/app/Message.h

@@ -22,6 +22,7 @@ class BBlockCache;
 class BMessenger;
 class BHandler;
 class BString;
+class BStringList;
 struct entry_ref;
 
 
@@ -105,6 +106,7 @@ class BMessage {
 		status_t		AddPoint(const char *name, BPoint aPoint);
 		status_t		AddString(const char *name, const char *aString);
 		status_t		AddString(const char *name, const BString &aString);
+		status_t		AddStrings(const char *name, const BStringList &list);
 		status_t		AddInt8(const char *name, int8 value);
 		status_t		AddUInt8(const char *name, uint8 value);
 		status_t		AddInt16(const char *name, int16 value);
@@ -140,6 +142,7 @@ class BMessage {
 		status_t		FindString(const char *name, int32 index, const char **string) const;
 		status_t		FindString(const char *name, BString *string) const;
 		status_t		FindString(const char *name, int32 index, BString *string) const;
+		status_t		FindStrings(const char *name, BStringList *list) const;
 		status_t		FindInt8(const char *name, int8 *value) const;
 		status_t		FindInt8(const char *name, int32 index, int8 *value) const;
 		status_t		FindUInt8(const char *name, uint8 *value) const;

src/build/libbe/app/Message.cpp

@@ -25,6 +25,7 @@
 #include <Point.h>
 #include <Rect.h>
 #include <String.h>
+#include <StringList.h>
 
 #include <assert.h>
 #include <ctype.h>
@@ -1746,6 +1747,20 @@ BMessage::AddString(const char *name, const BString &string)
 }
 
 
+status_t
+BMessage::AddStrings(const char *name, const BStringList &list)
+{
+	int32 count = list.CountStrings();
+	for (int32 i = 0; i < count; i++) {
+		status_t error = AddString(name, list.StringAt(i));
+		if (error != B_OK)
+			return error;
+	}
+
+	return B_OK;
+}
+
+
 status_t
 BMessage::AddPointer(const char *name, const void *pointer)
 {
@@ -1875,6 +1890,36 @@ BMessage::FindString(const char *name, int32 index, BString *string) const
 }
 
 
+status_t
+BMessage::FindStrings(const char *name, BStringList *list) const
+{
+	if (list == NULL)
+		return B_BAD_VALUE;
+
+	list->MakeEmpty();
+
+	// get the number of items
+	type_code type;
+	int32 count;
+	if (GetInfo(name, &type, &count) != B_OK)
+		return B_NAME_NOT_FOUND;
+
+	if (type != B_STRING_TYPE)
+		return B_BAD_DATA;
+
+	for (int32 i = 0; i < count; i++) {
+		BString string;
+		status_t error = FindString(name, i, &string);
+		if (error != B_OK)
+			return error;
+		if (!list->Add(string))
+			return B_NO_MEMORY;
+	}
+
+	return B_OK;
+}
+
+
 status_t
 BMessage::FindPointer(const char *name, void **pointer) const
 {