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From: Michael Olbrich <m.olbrich@pengutronix.de>
Date: Wed, 2 Nov 2011 00:14:37 +0100
Subject: [PATCH] don't regen docs if perl is not found
If we're using a cvs snapshot which updates the source files, and
perl isn't installed yet, then we can't regen the docs. Not a big
deal, so just whine a little and continue on our merry way.
This patch was taken from gentoo.
http://bugs.gentoo.org/60132
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
---
manual/Makefile | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/manual/Makefile b/manual/Makefile
index 4f76ee85d285..7fd1ee5251f4 100644
--- a/manual/Makefile
+++ b/manual/Makefile
@@ -102,9 +102,14 @@ $(objpfx)libm-err.texi: $(objpfx)stamp-libm-err
$(objpfx)stamp-libm-err: $(..)math/gen-libm-test.py \
$(wildcard $(foreach dir,$(sysdirs),\
$(dir)/libm-test-ulps))
+ifneq ($(PERL),no)
pwd=`pwd`; \
$(PYTHON) $< -s $$pwd/.. -m $(objpfx)libm-err-tmp
$(move-if-change) $(objpfx)libm-err-tmp $(objpfx)libm-err.texi
+else
+ echo "Unable to rebuild math docs, no perl installed"
+ touch libm-err.texi
+endif
touch $@
# Package version and bug reporting URL.
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