2 # Copyright (C) 2006 OpenWrt.org
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
8 include $(TOPDIR)/rules.mk
15 if [ -f $(TMP_DIR)/.prereq-error ]; then \
16 cat $(TMP_DIR)/.prereq-error; \
24 .SILENT: $(TMP_DIR) prereq
27 ifeq ($$(CHECK_$(1)),)
30 prereq-$(1): $(TMP_DIR) FORCE
31 echo -n "Checking '$(1)'... "
32 if $(NO_TRACE_MAKE) -f $(INCLUDE_DIR)/prereq.mk check-$(1) >/dev/null 2>/dev/null; then \
36 echo -e "$(strip $(2))" >> $(TMP_DIR)/.prereq-error; \
43 .SILENT: prereq-$(1) check-$(1)
53 $$(eval $$(call Require,$(1),$(2)))
56 # Required for the toolchain
57 define Require/working-make
58 echo 'all: test' > $(TMP_DIR)/check.mk
59 echo 'e0 = $$$$(foreach s,foobar,$$$$(eval $$$$s:))' >> $(TMP_DIR)/check.mk
60 echo 'e1 = $$$$(foreach s,foobar, $$$$(eval $$$$s:))' >> $(TMP_DIR)/check.mk
61 echo 'test: $$$$(strip $$$$(e0)) $$$$(strip $$$$(e1))' >> $(TMP_DIR)/check.mk
62 $(NO_TRACE_MAKE) -f $(TMP_DIR)/check.mk
65 $(eval $(call Require,working-make, \
66 Your make version is buggy. Please install GNU make v3.81 or later. \
69 define Require/working-gcc
70 echo 'int main(int argc, char **argv) { return 0; }' | \
71 gcc -x c -o $(TMP_DIR)/a.out -
74 $(eval $(call Require,working-gcc, \
75 No working GNU C Compiler (gcc) was found on your system. \
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++ -
83 $(eval $(call Require,working-g++, \
84 No working GNU C++ Compiler (g++) was found on your system. \
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 -
92 $(eval $(call Require,zlib, \
93 No zlib development files were not found on your system. \
97 $(eval $(call RequireCommand,bison, \
98 Please install GNU bison. \
101 $(eval $(call RequireCommand,flex, \
102 Please install flex. \
105 $(eval $(call RequireCommand,python, \
106 Please install python. \
109 $(eval $(call RequireCommand,unzip, \
110 Please install unzip. \
113 $(eval $(call RequireCommand,bzip2, \
114 Please install bzip2. \
117 $(eval $(call RequireCommand,patch, \
118 Please install patch. \
121 $(eval $(call RequireCommand,perl, \
122 Please install perl. \