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libbpf: fix Makefile exit code if libelf not found

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/bin/sh's exit does not recognize -1 as a number, leading to
the following error message:

/bin/sh: 1: exit: Illegal number: -1

Use 1 as the exit code.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski 2017-12-15 16:19:30 -08:00 committed by Daniel Borkmann
parent ef9fde06a2
commit 21567eded9
1 changed files with 2 additions and 2 deletions
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4
tools/lib/bpf/Makefile
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@ -213,10 +213,10 @@ PHONY += force elfdep bpfdep
force:
elfdep:
@if [ "$(feature-libelf)" != "1" ]; then echo "No libelf found"; exit -1 ; fi
@if [ "$(feature-libelf)" != "1" ]; then echo "No libelf found"; exit 1 ; fi
bpfdep:
@if [ "$(feature-bpf)" != "1" ]; then echo "BPF API too old"; exit -1 ; fi
@if [ "$(feature-bpf)" != "1" ]; then echo "BPF API too old"; exit 1 ; fi
# Declare the contents of the .PHONY variable as phony. We keep that
# information in a variable so we can use it in if_changed and friends.