OpenWrt – Blame information for rev 2

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1 office 1 #
2 # Copyright (C) 2006-2015 OpenWrt.org
3 #
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
6 #
7  
8 ifneq ($(__prereq_inc),1)
9 __prereq_inc:=1
10  
11 prereq:
12 if [ -f $(TMP_DIR)/.prereq-error ]; then \
13 echo; \
14 cat $(TMP_DIR)/.prereq-error; \
15 rm -f $(TMP_DIR)/.prereq-error; \
16 echo; \
17 false; \
18 fi
19  
20 .SILENT: prereq
21 endif
22  
23 PREREQ_PREV=
24  
25 # 1: display name
26 # 2: error message
27 define Require
28 export PREREQ_CHECK=1
29 ifeq ($$(CHECK_$(1)),)
30 prereq: prereq-$(1)
31  
32 prereq-$(1): $(if $(PREREQ_PREV),prereq-$(PREREQ_PREV)) FORCE
33 printf "Checking '$(1)'... "
34 if $(NO_TRACE_MAKE) -f $(firstword $(MAKEFILE_LIST)) check-$(1) >/dev/null 2>/dev/null; then \
35 echo 'ok.'; \
36 else \
37 echo 'failed.'; \
38 echo "$(PKG_NAME): $(strip $(2))" >> $(TMP_DIR)/.prereq-error; \
39 fi
40  
41 check-$(1): FORCE
42 $(call Require/$(1))
43 CHECK_$(1):=1
44  
45 .SILENT: prereq-$(1) check-$(1)
46 .NOTPARALLEL:
47 endif
48  
49 PREREQ_PREV=$(1)
50 endef
51  
52  
53 define RequireCommand
54 define Require/$(1)
55 which $(1)
56 endef
57  
58 $$(eval $$(call Require,$(1),$(2)))
59 endef
60  
61 define RequireHeader
62 define Require/$(1)
63 [ -e "$(1)" ]
64 endef
65  
66 $$(eval $$(call Require,$(1),$(2)))
67 endef
68  
69 define QuoteHostCommand
70 '$(subst ','"'"',$(strip $(1)))'
71 endef
72  
73 # 1: display name
74 # 2: failure message
75 # 3: test
76 define TestHostCommand
77 define Require/$(1)
78 ($(3)) >/dev/null 2>/dev/null
79 endef
80  
81 $$(eval $$(call Require,$(1),$(2)))
82 endef
83  
84 # 1: canonical name
85 # 2: failure message
86 # 3+: candidates
87 define SetupHostCommand
88 define Require/$(1)
89 [ -f "$(STAGING_DIR_HOST)/bin/$(strip $(1))" ] && exit 0; \
90 for cmd in $(call QuoteHostCommand,$(3)) $(call QuoteHostCommand,$(4)) \
91 $(call QuoteHostCommand,$(5)) $(call QuoteHostCommand,$(6)) \
92 $(call QuoteHostCommand,$(7)) $(call QuoteHostCommand,$(8)) \
93 $(call QuoteHostCommand,$(9)) $(call QuoteHostCommand,$(10)) \
94 $(call QuoteHostCommand,$(11)) $(call QuoteHostCommand,$(12)); do \
95 if [ -n "$$$$$$$$cmd" ]; then \
96 bin="$$$$$$$$(PATH="$(subst $(space),:,$(filter-out $(STAGING_DIR_HOST)/%,$(subst :,$(space),$(PATH))))" \
97 which "$$$$$$$${cmd%% *}")"; \
98 if [ -x "$$$$$$$$bin" ] && eval "$$$$$$$$cmd" >/dev/null 2>/dev/null; then \
99 mkdir -p "$(STAGING_DIR_HOST)/bin"; \
100 ln -sf "$$$$$$$$bin" "$(STAGING_DIR_HOST)/bin/$(strip $(1))"; \
101 exit 0; \
102 fi; \
103 fi; \
104 done; \
105 exit 1
106 endef
107  
108 $$(eval $$(call Require,$(1),$(if $(2),$(2),Missing $(1) command)))
109 endef