3 files changed, 44 insertions, 0 deletions
diff --git a/contrib/depends/builders/darwin.mk b/contrib/depends/builders/darwin.mk
new file mode 100644
index 000000000..27f550ab0
--- /dev/null
+++ b/contrib/depends/builders/darwin.mk
@@ -0,0 +1,22 @@
+build_darwin_CC: = $(shell xcrun -f clang)
+build_darwin_CXX: = $(shell xcrun -f clang++)
+build_darwin_AR: = $(shell xcrun -f ar)
+build_darwin_RANLIB: = $(shell xcrun -f ranlib)
+build_darwin_STRIP: = $(shell xcrun -f strip)
+build_darwin_OTOOL: = $(shell xcrun -f otool)
+build_darwin_NM: = $(shell xcrun -f nm)
+build_darwin_INSTALL_NAME_TOOL:=$(shell xcrun -f install_name_tool)
+build_darwin_SHA256SUM = shasum -a 256
+build_darwin_DOWNLOAD = curl --location --fail --connect-timeout $(DOWNLOAD_CONNECT_TIMEOUT) --retry $(DOWNLOAD_RETRIES) -o
+
+#darwin host on darwin builder. overrides darwin host preferences.
+darwin_CC=$(shell xcrun -f clang) -mmacosx-version-min=$(OSX_MIN_VERSION)
+darwin_CXX:=$(shell xcrun -f clang++) -mmacosx-version-min=$(OSX_MIN_VERSION) -stdlib=libc++
+darwin_AR:=$(shell xcrun -f ar)
+darwin_RANLIB:=$(shell xcrun -f ranlib)
+darwin_STRIP:=$(shell xcrun -f strip)
+darwin_LIBTOOL:=$(shell xcrun -f libtool)
+darwin_OTOOL:=$(shell xcrun -f otool)
+darwin_NM:=$(shell xcrun -f nm)
+darwin_INSTALL_NAME_TOOL:=$(shell xcrun -f install_name_tool)
+darwin_native_toolchain=
diff --git a/contrib/depends/builders/default.mk b/contrib/depends/builders/default.mk
new file mode 100644
index 000000000..f097db65d
--- /dev/null
+++ b/contrib/depends/builders/default.mk
@@ -0,0 +1,20 @@
+default_build_CC = gcc
+default_build_CXX = g++
+default_build_AR = ar
+default_build_RANLIB = ranlib
+default_build_STRIP = strip
+default_build_NM = nm
+default_build_OTOOL = otool
+default_build_INSTALL_NAME_TOOL = install_name_tool
+
+define add_build_tool_func
+build_$(build_os)_$1 ?= $$(default_build_$1)
+build_$(build_arch)_$(build_os)_$1 ?= $$(build_$(build_os)_$1)
+build_$1=$$(build_$(build_arch)_$(build_os)_$1)
+endef
+$(foreach var,CC CXX AR RANLIB NM STRIP SHA256SUM DOWNLOAD OTOOL INSTALL_NAME_TOOL,$(eval $(call add_build_tool_func,$(var))))
+define add_build_flags_func
+build_$(build_arch)_$(build_os)_$1 += $(build_$(build_os)_$1)
+build_$1=$$(build_$(build_arch)_$(build_os)_$1)
+endef
+$(foreach flags, CFLAGS CXXFLAGS LDFLAGS, $(eval $(call add_build_flags_func,$(flags))))
diff --git a/contrib/depends/builders/linux.mk b/contrib/depends/builders/linux.mk
new file mode 100644
index 000000000..b03f42401
--- /dev/null
+++ b/contrib/depends/builders/linux.mk
@@ -0,0 +1,2 @@
+build_linux_SHA256SUM = sha256sum
+build_linux_DOWNLOAD = curl --location --fail --connect-timeout $(DOWNLOAD_CONNECT_TIMEOUT) --retry $(DOWNLOAD_RETRIES) -o