Polyseed submodule

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "src/third-party/singleapplication"]
 	path = src/third-party/singleapplication
 	url = https://github.com/itay-grudev/SingleApplication.git
+[submodule "src/third-party/polyseed"]
+	path = src/third-party/polyseed
+	url = https://github.com/tevador/polyseed.git

CMakeLists.txt

@@ -79,6 +79,9 @@ add_subdirectory(contrib/monero-seed)
 
 # Polyseed 16 word mnemonic seeds
 find_package(Polyseed REQUIRED)
+if(Polyseed_SUBMODULE)
+    add_subdirectory(src/third-party/polyseed)
+endif()
 
 # libzip
 find_package(zlib CONFIG)

cmake/FindPolyseed.cmake

@@ -1,5 +1,10 @@
 find_path(POLYSEED_INCLUDE_DIR polyseed.h)
-message(STATUS "POLYSEED PATH ${POLYSEED_INCLUDE_DIR}")
-
 find_library(POLYSEED_LIBRARY polyseed)
+if (NOT POLYSEED_INCLUDE_DIR OR NOT POLYSEED_LIBRARY)
+    MESSAGE(STATUS "Could not find installed Polyseed, using submodule instead")
+    set(Polyseed_SUBMODULE "ON")
+    set(POLYSEED_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/src/third-party/polyseed/include)
+    set(POLYSEED_LIBRARY polyseed)
+endif()
+message(STATUS "POLYSEED PATH ${POLYSEED_INCLUDE_DIR}")
 message(STATUS "POLYSEED LIBARY ${POLYSEED_LIBRARY}")