Add new string testing functions which return a y/n result: eq : are two strings equal (ignoring leading/trailing space)? ne : are two strings unequal? isempty : is a string empty? notempty : is a string non-empty?
Based on an idea by Ákos Kovács <akoskov...@gmx.com>. Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> --- rules.mak | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/rules.mak b/rules.mak index 65a1b96..49edb9b 100644 --- a/rules.mak +++ b/rules.mak @@ -106,6 +106,17 @@ leqv = $(if $(filter $(call lnot,$1),$(call lnot,$2)),y,n) # Logical if: like make's $(if) but with an leqv-like test lif = $(if $(subst n,,$1),$2,$3) +# String testing functions: inputs to these can be any string; +# the output is always either "y" or "n". Leading and trailing whitespace +# is ignored when comparing strings. +# String equality +eq = $(if $(subst $2,,$1)$(subst $1,,$2),n,y) +# String inequality +ne = $(if $(subst $2,,$1)$(subst $1,,$2),y,n) +# Emptiness/non-emptiness tests: +isempty = $(if $1,n,y) +notempty = $(if $1,y,n) + # Generate files with tracetool TRACETOOL=$(PYTHON) $(SRC_PATH)/scripts/tracetool.py -- 1.7.9.5
