tools/patchelf: update to 0.18.0

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

diff --git a/include/prereq.mk b/include/prereq.mk
index 45ee77e9e6042a9f46af1356ac6a5770dd76ff53..d34539ec3043f7c00d5dca9abd11cde883574b5c 100644 (file)
--- a/include/prereq.mk
+++ b/include/prereq.mk
@@ -1,9 +1,6 @@
-# 
-# Copyright (C) 2006-2007 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
+# SPDX-License-Identifier: GPL-2.0-only
 #
+# Copyright (C) 2006-2020 OpenWrt.org
 
 ifneq ($(__prereq_inc),1)
 __prereq_inc:=1
@@ -20,18 +17,22 @@ prereq:
 .SILENT: prereq
 endif
 
+PREREQ_PREV=
+
+# 1: display name
+# 2: error message
 define Require
   export PREREQ_CHECK=1
   ifeq ($$(CHECK_$(1)),)
     prereq: prereq-$(1)
 
-    prereq-$(1): FORCE
-               echo -n "Checking '$(1)'... "
+    prereq-$(1): $(if $(PREREQ_PREV),prereq-$(PREREQ_PREV)) FORCE
+               printf "Checking '$(1)'... "
                if $(NO_TRACE_MAKE) -f $(firstword $(MAKEFILE_LIST)) check-$(1) >/dev/null 2>/dev/null; then \
                        echo 'ok.'; \
                else \
                        echo 'failed.'; \
-                       echo -e "$(PKG_NAME): $(strip $(2))" | perl -ne 's/\\\s*/\n/g,print' >> $(TMP_DIR)/.prereq-error; \
+                       echo "$(PKG_NAME): $(strip $(2))" >> $(TMP_DIR)/.prereq-error; \
                fi
 
     check-$(1): FORCE
@@ -41,12 +42,14 @@ define Require
     .SILENT: prereq-$(1) check-$(1)
     .NOTPARALLEL:
   endif
+
+  PREREQ_PREV=$(1)
 endef
 
 
 define RequireCommand
   define Require/$(1)
-    which $(1)
+    command -v $(1)
   endef
 
   $$(eval $$(call Require,$(1),$(2)))
@@ -56,7 +59,72 @@ define RequireHeader
   define Require/$(1)
     [ -e "$(1)" ]
   endef
-  
+
+  $$(eval $$(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" ] && \
+               $(STAGING_DIR_HOST)/bin/python -V 2>&1 | \
+               grep -q 'Python 2'; then \
+                       rm $(STAGING_DIR_HOST)/bin/python; \
+       fi
+  endef
+
+  $$(eval $$(call Require,python2-cleanup))
+endef
+
+define QuoteHostCommand
+'$(subst ','"'"',$(strip $(1)))'
+endef
+
+# 1: display name
+# 2: failure message
+# 3: test
+define TestHostCommand
+  define Require/$(1)
+       ($(3)) >/dev/null 2>/dev/null
+  endef
+
+  $$(eval $$(call Require,$(1),$(2)))
+endef
+
+# 1: canonical name
+# 2: failure message
+# 3+: candidates
+define SetupHostCommand
+  define Require/$(1)
+       [ -f "$(STAGING_DIR_HOST)/bin/$(strip $(1))" ] && exit 0; \
+       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 "$$$$$$$$cmd" ]; then \
+                       bin="$$$$$$$$(PATH="$(subst $(space),:,$(filter-out $(STAGING_DIR_HOST)/%,$(subst :,$(space),$(PATH))))" \
+                               command -v "$$$$$$$${cmd%% *}")"; \
+                       if [ -x "$$$$$$$$bin" ] && eval "$$$$$$$$cmd" >/dev/null 2>/dev/null; then \
+                               mkdir -p "$(STAGING_DIR_HOST)/bin"; \
+                               ln -sf "$$$$$$$$bin" "$(STAGING_DIR_HOST)/bin/$(strip $(1))"; \
+                               exit 0; \
+                       fi; \
+               fi; \
+       done; \
+       exit 1
+  endef
+
+  $$(eval $$(call Require,$(1),$(if $(2),$(2),Missing $(1) command)))
+endef