Test for executables: replace 'which' with more robust 'command -v'

Instances of:
if [ $(which <command> ]
have been replaced with:
if command -v <command> >/dev/null
which is considered to be more robust in a range of environments.

scripts/build/chroot_archives: line 259:
	if [ "${LB_APT}" = "aptitude" ] && [ ! $(Chroot chroot "which aptitude") ]
has been left untouched because the chroot might require a more complex command
which would need more testing.

manpages/Makefile: line 42:
	@if [ ! -x "$$(which po4a 2>/dev/null)" ]; \
has been left untouched because I am not sufficiently familiar with makefiles.

1 files changed, 1 insertions, 1 deletions

diff --git a/functions/architectures.sh b/functions/architectures.sh
index aeb298eb3..bdad4cbc0 100755
--- a/functions/architectures.sh
+++ b/functions/architectures.sh
@@ -50,7 +50,7 @@ Check_architectures ()
 
 Check_crossarchitectures ()
 {
-	if [ $(which dpkg) ]
+	if command -v dpkg >/dev/null
 	then
 		HOST="$(dpkg --print-architecture)"
 	else