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