diff --git a/cmake/platforms/Linux32.cmake b/cmake/platforms/Linux32.cmake
new file mode 100644
--- /dev/null
+++ b/cmake/platforms/Linux32.cmake
@@ -0,0 +1,29 @@
+# Copyright (c) 2019 The Bitcoin developers
+
+set(CMAKE_SYSTEM_NAME Linux)
+set(TOOLCHAIN_PREFIX i686-pc-linux-gnu)
+
+# Cross compilers to use for C and C++
+set(CMAKE_C_COMPILER gcc)
+set(CMAKE_CXX_COMPILER g++)
+
+# Target environment on the build host system
+# Set 1st to directory with the cross compiler's C/C++ headers/libs
+set(CMAKE_FIND_ROOT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/depends/${TOOLCHAIN_PREFIX}")
+
+# We also may have built dependencies for the native platform.
+set(CMAKE_PREFIX_PATH "${CMAKE_CURRENT_SOURCE_DIR}/depends/${TOOLCHAIN_PREFIX}/native")
+
+# Modify default behavior of FIND_XXX() commands to
+# search for headers/libs in the target environment and
+# search for programs in the build host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+set(LINUX32_EXTRA_FLAGS
+	" -m32"
+)
+
+string(APPEND CMAKE_C_FLAGS_INIT ${LINUX32_EXTRA_FLAGS})
+string(APPEND CMAKE_CXX_FLAGS_INIT ${LINUX32_EXTRA_FLAGS})
diff --git a/cmake/platforms/Linux64.cmake b/cmake/platforms/Linux64.cmake
new file mode 100644
--- /dev/null
+++ b/cmake/platforms/Linux64.cmake
@@ -0,0 +1,29 @@
+# Copyright (c) 2019 The Bitcoin developers
+
+set(CMAKE_SYSTEM_NAME Linux)
+set(TOOLCHAIN_PREFIX x86_64-pc-linux-gnu)
+
+# Cross compilers to use for C and C++
+set(CMAKE_C_COMPILER gcc)
+set(CMAKE_CXX_COMPILER g++)
+
+# Target environment on the build host system
+# Set 1st to directory with the cross compiler's C/C++ headers/libs
+set(CMAKE_FIND_ROOT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/depends/${TOOLCHAIN_PREFIX}")
+
+# We also may have built dependencies for the native platform.
+set(CMAKE_PREFIX_PATH "${CMAKE_CURRENT_SOURCE_DIR}/depends/${TOOLCHAIN_PREFIX}/native")
+
+# Modify default behavior of FIND_XXX() commands to
+# search for headers/libs in the target environment and
+# search for programs in the build host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+set(LINUX64_EXTRA_FLAGS
+	" -m64"
+)
+
+string(APPEND CMAKE_C_FLAGS_INIT ${LINUX64_EXTRA_FLAGS})
+string(APPEND CMAKE_CXX_FLAGS_INIT ${LINUX64_EXTRA_FLAGS})