chrysn 6b50033766 makefiles: Replace which with command -v ... As the POSIX documentation[1] of `command -v` guarantees that on error there will be no output (and there will be output in the other cases), the tests in Makefiles were simplified to test for output equality to the empty string. Redirects swallowing error outputs were removed, as the command produces no error output there (as recommended at [2]). Existing uses of `command` are simplified as well. [1]: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/command.html [2]: https://salsa.debian.org/debian/debianutils/-/blob/master/debian/NEWS		2021-09-02 16:30:46 +02:00
..
avr8.inc.mk	cpu/atxmega: Add external bus interface	2021-08-24 08:35:41 -03:00
cortexm.inc.mk	cpu/cortexm_common: add support for Cortex-M33	2020-10-06 17:11:26 +02:00
mips.inc.mk	cpu/mips_pic32_common: fix XFA support	2021-02-18 10:46:08 +01:00
msp430.inc.mk	cpu/msp430_common: add XFA support	2021-02-18 10:46:08 +01:00
riscv.inc.mk	makefiles: Replace which with command -v	2021-09-02 16:30:46 +02:00