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perf: Fix compilation without libelf for post-3.10 kernels 

kernel commit cf4cca10 (perf tools: Move libelf check config into config/Makefile)
removes the NO_LIBELF check from the top-level Makefile

for newer kernels, if config/Makefile exists, we can assume that NO_LIBELF is
also there

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Reviewed-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Tested-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Peter Meerwald 2014-04-05 14:51:02 +02:00 committed by Peter Korsgaard
parent 687615cb58
commit 220490ceae
1 changed files with 5 additions and 3 deletions
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8
package/perf/perf.mk
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@ -36,9 +36,11 @@ define PERF_BUILD_CMDS
fi
$(Q)if test "$(BR2_PACKAGE_ELFUTILS)" = "" ; then \
if ! grep -q NO_LIBELF $(LINUX_DIR)/tools/perf/Makefile ; then \
echo "The perf tool in your kernel cannot be built without libelf." ; \
echo "Either upgrade your kernel to >= 3.7, or enable the elfutils package." ; \
exit 1 ; \
if ! test -r $(LINUX_DIR)/tools/perf/config/Makefile ; then \
echo "The perf tool in your kernel cannot be built without libelf." ; \
echo "Either upgrade your kernel to >= 3.7, or enable the elfutils package." ; \
exit 1 ; \
fi \
fi \
fi
$(TARGET_MAKE_ENV) $(MAKE) -C $(LINUX_DIR)/tools/perf \