build: revert 54070a1 (all kernels are >= 5.10)

[openwrt/openwrt.git] / include / prereq.mk

diff --git a/include/prereq.mk b/include/prereq.mk
index c11178a884b4b450ee4fb585785a3ec1bb0cd998..d34539ec3043f7c00d5dca9abd11cde883574b5c 100644 (file)
--- a/include/prereq.mk
+++ b/include/prereq.mk
@@ -49,7 +49,7 @@ endef
 
 define RequireCommand
   define Require/$(1)
-    command -pv $(1)
+    command -v $(1)
   endef
 
   $$(eval $$(call Require,$(1),$(2)))
@@ -63,6 +63,18 @@ define RequireHeader
   $$(eval $$(call Require,$(1),$(2)))
 endef
 
+# 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)
+  endef
+
+  $$(eval $$(call Require,$(1),$(2)))
+endef
+
 define CleanupPython2
   define Require/python2-cleanup
        if [ -f "$(STAGING_DIR_HOST)/bin/python" ] && \
@@ -103,7 +115,7 @@ define SetupHostCommand
                   $(call QuoteHostCommand,$(11)) $(call QuoteHostCommand,$(12)); do \
                if [ -n "$$$$$$$$cmd" ]; then \
                        bin="$$$$$$$$(PATH="$(subst $(space),:,$(filter-out $(STAGING_DIR_HOST)/%,$(subst :,$(space),$(PATH))))" \
-                               command -pv "$$$$$$$${cmd%% *}")"; \
+                               command -v "$$$$$$$${cmd%% *}")"; \
                        if [ -x "$$$$$$$$bin" ] && eval "$$$$$$$$cmd" >/dev/null 2>/dev/null; then \
                                mkdir -p "$(STAGING_DIR_HOST)/bin"; \
                                ln -sf "$$$$$$$$bin" "$(STAGING_DIR_HOST)/bin/$(strip $(1))"; \