* mandoc: Automatically detect whether diff(1) supports the -a option.
@ 2019-03-10 9:24 schwarze
0 siblings, 0 replies; only message in thread
From: schwarze @ 2019-03-10 9:24 UTC (permalink / raw)
To: source
Log Message:
-----------
Automatically detect whether diff(1) supports the -a option.
Useful on illumos and on Oracle Solaris, where it doesn't.
Patch written based on a report from Sevan Janiyan.
Modified Files:
--------------
mandoc/regress:
regress.pl
Revision Data
-------------
Index: regress.pl
===================================================================
RCS file: /home/cvs/mandoc/mandoc/regress/regress.pl,v
retrieving revision 1.9
retrieving revision 1.10
diff -Lregress/regress.pl -Lregress/regress.pl -u -p -r1.9 -r1.10
--- regress/regress.pl
+++ regress/regress.pl
@@ -27,6 +27,7 @@ use IPC::Open3 qw(open3);
# Define this at one place such that it can easily be changed
# if diff(1) does not support the -a option.
my @diff = qw(diff -au);
+system @diff, '/dev/null', '/dev/null' and @diff = qw(diff -u);
# --- utility functions ------------------------------------------------
--
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