diff --git a/depends/Makefile b/depends/Makefile
index 2b2538f95..3d8dd25ca 100644
--- a/depends/Makefile
+++ b/depends/Makefile
@@ -8,7 +8,7 @@ NO_WALLET ?=
 NO_UPNP ?=
 FALLBACK_DOWNLOAD_PATH ?= https://z.cash/depends-sources
 
-BUILD = $(shell ./config.guess)
+BUILD ?= $(shell ./config.guess)
 HOST ?= $(BUILD)
 PATCHES_PATH = $(BASEDIR)/patches
 BASEDIR = $(CURDIR)
diff --git a/depends/packages/libgmp.mk b/depends/packages/libgmp.mk
index cf3dfc0f7..2e55b05f6 100644
--- a/depends/packages/libgmp.mk
+++ b/depends/packages/libgmp.mk
@@ -7,7 +7,7 @@ $(package)_dependencies=
 $(package)_config_opts=--enable-cxx --disable-shared
 
 define $(package)_config_cmds
-  $($(package)_autoconf)
+  $($(package)_autoconf) --host=$(host) --build=$(build)
 endef
 
 define $(package)_build_cmds
diff --git a/zcutil/build.sh b/zcutil/build.sh
index e259c02cb..0000c6201 100755
--- a/zcutil/build.sh
+++ b/zcutil/build.sh
@@ -35,7 +35,7 @@ fi
 # BUG: parameterize the platform/host directory:
 PREFIX="$(pwd)/depends/x86_64-unknown-linux-gnu/"
 
-make "$@" -C ./depends/ V=1 NO_QT=1
+HOST=x86_64-unknown-linux-gnu BUILD=x86_64-unknown-linux-gnu make "$@" -C ./depends/ V=1 NO_QT=1
 ./autogen.sh
-./configure --prefix="${PREFIX}" --with-gui=no "$HARDENING_ARG" "$LCOV_ARG" CXXFLAGS='-fwrapv -fno-strict-aliasing -Werror -g'
+./configure --prefix="${PREFIX}" --host=x86_64-unknown-linux-gnu --build=x86_64-unknown-linux-gnu --with-gui=no "$HARDENING_ARG" "$LCOV_ARG" CXXFLAGS='-fwrapv -fno-strict-aliasing -Werror -g'
 make "$@" V=1