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| author |   Ingo Schwarze <schwarze@openbsd.org> | 2019-03-10 09:23:33 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@openbsd.org> | 2019-03-10 09:23:33 +0000 |
| commit | a6b1c8dbda1877557fbea634eed0b934372e6c08 (patch) | |
| tree | 4511426478a314df14463189fda49b2ed982ec65 | |
| parent | 96b26b75942ef3682636c79b488427f342f8b6a6 (diff) | |
| download | mandoc-a6b1c8dbda1877557fbea634eed0b934372e6c08.tar.gz mandoc-a6b1c8dbda1877557fbea634eed0b934372e6c08.tar.zst mandoc-a6b1c8dbda1877557fbea634eed0b934372e6c08.zip | |
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.
| -rwxr-xr-x | regress/regress.pl | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/regress/regress.pl b/regress/regress.pl index 9d8fcf58..7faa3a5f 100755 --- a/regress/regress.pl +++ b/regress/regress.pl @@ -1,6 +1,6 @@ #!/usr/bin/env perl # -# $Id: regress.pl,v 1.9 2018/12/16 00:17:04 schwarze Exp $ +# $Id: regress.pl,v 1.10 2019/03/10 09:23:33 schwarze Exp $ # # Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org> # @@ -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 ------------------------------------------------ |