prereq-$(1): $(if $(PREREQ_PREV),prereq-$(PREREQ_PREV)) FORCE
printf "Checking '$(1)'... "
prereq-$(1): $(if $(PREREQ_PREV),prereq-$(PREREQ_PREV)) FORCE
printf "Checking '$(1)'... "
-define CleanupPython2
- define Require/python2-cleanup
- if [ -f "$(STAGING_DIR_HOST)/bin/python" ] && \
- $(STAGING_DIR_HOST)/bin/python -V 2>&1 | \
- grep -q 'Python 2'; then \
- rm $(STAGING_DIR_HOST)/bin/python; \
- fi
+# 1: header to test
+# 2: failure message
+# 3: optional compile time test
+# 4: optional link library test (example -lncurses)
+define RequireCHeader
+ define Require/$(1)
+ echo 'int main(int argc, char **argv) { $(3); return 0; }' | gcc -include $(1) -x c -o $(TMP_DIR)/a.out - $(4)
for cmd in $(call QuoteHostCommand,$(3)) $(call QuoteHostCommand,$(4)) \
$(call QuoteHostCommand,$(5)) $(call QuoteHostCommand,$(6)) \
$(call QuoteHostCommand,$(7)) $(call QuoteHostCommand,$(8)) \
$(call QuoteHostCommand,$(9)) $(call QuoteHostCommand,$(10)) \
$(call QuoteHostCommand,$(11)) $(call QuoteHostCommand,$(12)); do \
if [ -n "$$$$$$$$cmd" ]; then \
for cmd in $(call QuoteHostCommand,$(3)) $(call QuoteHostCommand,$(4)) \
$(call QuoteHostCommand,$(5)) $(call QuoteHostCommand,$(6)) \
$(call QuoteHostCommand,$(7)) $(call QuoteHostCommand,$(8)) \
$(call QuoteHostCommand,$(9)) $(call QuoteHostCommand,$(10)) \
$(call QuoteHostCommand,$(11)) $(call QuoteHostCommand,$(12)); do \
if [ -n "$$$$$$$$cmd" ]; then \
- bin="$$$$$$$$(PATH="$(subst $(space),:,$(filter-out $(STAGING_DIR_HOST)/%,$(subst :,$(space),$(PATH))))" \
- command -v "$$$$$$$${cmd%% *}")"; \
+ bin="$$$$$$$$(command -v "$$$$$$$${cmd%% *}")"; \