Set $(SHELL) for all configs
Most make implementations will use /bin/sh as the interpreter for
commands and only use a different shell when the $(SHELL) make variable
is set. This makes the setting explicit and allows $(SHELL) to be used
in the commands themselves.
diff --git a/configs/default b/configs/default
index d5b40c5..5193c14 100644
--- a/configs/default
+++ b/configs/default
@@ -25,6 +25,7 @@
GLU_CFLAGS =
# Misc tools and flags
+SHELL = /bin/sh
MKLIB_OPTIONS =
MKDEP = makedepend
MKDEP_OPTIONS = -fdepend