From e2b97c605195dfc4d899caeb4002aea6a1e26471 Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@cs.stanford.edu>
Date: Mon, 20 Feb 2023 17:48:54 -0800
Subject: [PATCH] doc: Avoid using stdout in Makefile rule to generate .spv
 files.

When pspp writes anything to stdout, also writing the .spv file to stdout
causes confusing corruption.  This avoids the problem.
---
 doc/automake.mk | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/automake.mk b/doc/automake.mk
index aea1a6d6c7..110e379d11 100644
--- a/doc/automake.mk
+++ b/doc/automake.mk
@@ -238,8 +238,8 @@ endif
 
 $(FIGURE_SPVS): $(pspp)
 .sps.spv:
-	$(AM_V_GEN)(cd "$(top_srcdir)/examples" \
-         && "$(abs_top_builddir)/$(pspp)" ../doc/pspp-figures/$(<F) -o - -O format=spv) > $@.tmp
+	$(AM_V_GEN)of=`pwd`/$@.tmp; (cd "$(top_srcdir)/examples" \
+         && "$(abs_top_builddir)/$(pspp)" ../doc/pspp-figures/$(<F) -o $$of -O format=spv)
 	$(AM_V_at)mv $@.tmp $@
 
 # In some cases, the tutorial only wants some parts of the output.
-- 
2.30.2