Document how to re-indent.

p4raw-id: //depot/perl@17445

diff --git a/Porting/pumpkin.pod b/Porting/pumpkin.pod
index 141a60a..1ecab87 100644 (file)
--- a/Porting/pumpkin.pod
+++ b/Porting/pumpkin.pod
@@ -1277,6 +1277,20 @@ Anyway, all this leads to quite obscure failures that are sure to drive
 casual users crazy.  Even experienced users will get confused :-).  Upon
 reflection, I'd say leave libperl.so in $archlib.
 
+=item 4.
+
+Indentation style: over the years Perl has become a mishmash of
+various indentation styles, but the original "Larry style" can
+probably be restored with (GNU) indent somewhat like this:
+
+    indent -kr -nce -psl -sc
+
+More full solution would also specify a list of Perl specific types
+with -TSV -TAV -THV .. -TMAGIC -TPerlIO ... but that list would be
+quite ungainly.  Also note that GNU indent also doesn't do aligning
+of assignments, which would truly wreck the indentation in places
+like sv.c:Perl_sv_upgrade().
+
 =back
 
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