include/prereq.mk

   1 #
   2 # Copyright (C) 2006 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 include $(TOPDIR)/rules.mk
   9
  10 $(TMP_DIR):
  11         mkdir -p $@
  12
  13 prereq:
  14         echo
  15         if [ -f $(TMP_DIR)/.prereq-error ]; then \
  16                 cat $(TMP_DIR)/.prereq-error; \
  17                 echo; \
  18                 rm -rf $(TMP_DIR); \
  19                 false; \
  20         fi
  21         rm -rf $(TMP_DIR)
  22         mkdir -p $(TMP_DIR)
  23
  24 .SILENT: $(TMP_DIR) prereq
  25
  26 define Require
  27   ifeq ($$(CHECK_$(1)),)
  28     prereq: prereq-$(1)
  29
  30     prereq-$(1): $(TMP_DIR) FORCE
  31                 echo -n "Checking '$(1)'... "
  32                 if $(NO_TRACE_MAKE) -f $(INCLUDE_DIR)/prereq.mk check-$(1) >/dev/null 2>/dev/null; then \
  33                         echo 'ok.'; \
  34                 else \
  35                         echo 'failed.'; \
  36                         echo -e "$(strip $(2))" >> $(TMP_DIR)/.prereq-error; \
  37                 fi
  38
  39     check-$(1): FORCE
  40           $(call Require/$(1))
  41     CHECK_$(1):=1
  42
  43     .SILENT: prereq-$(1) check-$(1)
  44   endif
  45 endef
  46
  47
  48 define RequireCommand
  49   define Require/$(1)
  50     which $(1)
  51   endef
  52
  53   $$(eval $$(call Require,$(1),$(2)))
  54 endef
  55
  56 # Required for the toolchain
  57 define Require/working-make
  58         echo 'all: test' > $(TMP_DIR)/check.mk
  59         echo 'e0 = $$$$(foreach s,foobar,$$$$(eval $$$$s:))' >> $(TMP_DIR)/check.mk
  60         echo 'e1 = $$$$(foreach s,foobar, $$$$(eval $$$$s:))' >> $(TMP_DIR)/check.mk
  61         echo 'test: $$$$(strip $$$$(e0)) $$$$(strip $$$$(e1))' >> $(TMP_DIR)/check.mk
  62         $(NO_TRACE_MAKE) -f $(TMP_DIR)/check.mk
  63 endef
  64
  65 $(eval $(call Require,working-make, \
  66         Your make version is buggy. Please install GNU make v3.81 or later. \
  67 ))
  68
  69 define Require/working-gcc
  70         echo 'int main(int argc, char **argv) { return 0; }' | \
  71                 gcc -x c -o $(TMP_DIR)/a.out -
  72 endef
  73
  74 $(eval $(call Require,working-gcc, \
  75         No working GNU C Compiler (gcc) was found on your system. \
  76 ))
  77
  78 define Require/working-g++
  79         echo 'int main(int argc, char **argv) { return 0; }' | \
  80                 g++ -x c++ -o $(TMP_DIR)/a.out -lstdc++ -
  81 endef
  82
  83 $(eval $(call Require,working-g++, \
  84         No working GNU C++ Compiler (g++) was found on your system. \
  85 ))
  86
  87 define Require/zlib
  88         echo 'int main(int argc, char **argv) { gzdopen(0, "rb"); return 0; }' | \
  89                 gcc -include zlib.h -x c -o $(TMP_DIR)/a.out -lz -
  90 endef
  91
  92 $(eval $(call Require,zlib, \
  93         No zlib development files were not found on your system. \
  94 ))
  95
  96
  97 $(eval $(call RequireCommand,bison, \
  98         Please install GNU bison. \
  99 ))
 100
 101 $(eval $(call RequireCommand,flex, \
 102         Please install flex. \
 103 ))
 104
 105 $(eval $(call RequireCommand,python, \
 106         Please install python. \
 107 ))
 108
 109 $(eval $(call RequireCommand,unzip, \
 110         Please install unzip. \
 111 ))
 112
 113 $(eval $(call RequireCommand,bzip2, \
 114         Please install bzip2. \
 115 ))
 116
 117 $(eval $(call RequireCommand,patch, \
 118         Please install patch. \
 119 ))
 120
 121 $(eval $(call RequireCommand,perl, \
 122         Please install perl. \
 123 ))