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makefile: Fix usage error with busybox grep

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Busybox grep does not support long options. In fact, the utilized long
options are not mandated by POSIX.1-2008. Using the short options allows
building RIOT on Alpine Linux which utilizes Busybox instead of GNU
coreutils by default.
This commit is contained in:
Sören Tempel 2020-10-06 17:16:26 +00:00
parent 71fe6685b5
commit ad13725047
1 changed files with 1 additions and 1 deletions
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2
makefiles/usb-codes.inc.mk
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@ -19,7 +19,7 @@ endif
USB_VID_TESTING = 1209
USB_PID_TESTING = 7D01
usb_id_check:
@if grep --quiet --ignore-case "^$(USB_VID) $(USB_PID)$$" $(RIOTBASE)/dist/usb_id_testing; then \
@if grep -q -i "^$(USB_VID) $(USB_PID)$$" $(RIOTBASE)/dist/usb_id_testing; then \
$(COLOR_ECHO) "$(COLOR_RED)Private testing pid.codes USB VID/PID used!, do not use it outside of test environments!$(COLOR_RESET)" 1>&2 ; \
$(COLOR_ECHO) "$(COLOR_RED)MUST NOT be used on any device redistributed, sold or manufactured, VID/PID is not unique!$(COLOR_RESET)" 1>&2 ; \
fi