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.

diff --git a/doc/automake.mk b/doc/automake.mk
index aea1a6d6c77b45ecdf51ef33819989666832dcd1..110e379d11059b0c411eeb88544cd5191d8f68c5 100644 (file)
--- 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.