Compile OpenSSL libraries during build

src/RyujinxAndroid/app/src/main/cpp/CMakeLists.txt

@@ -14,6 +14,9 @@ project("ryujinxjni")
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
 
+# libssl.so and libcrypto.so
+include(../../../../libryujinx/libs/OpenSSL.cmake)
+
 FetchContent_Declare(
     adrenotools
     GIT_REPOSITORY https://github.com/bylaws/libadrenotools.git
@@ -38,6 +41,8 @@ add_library( # Sets the name of the library.
             string_helper.cpp
             ryujinx.cpp)
 
+add_dependencies(ryujinxjni openssl)
+
 # Searches for a specified prebuilt library and stores the path as a
 # variable. Because CMake includes system libraries in the search path by
 # default, you only need to specify the name of the public NDK library

src/RyujinxAndroid/libryujinx/README.md

@@ -0,0 +1,12 @@
+# LibRyujinx Gradle project
+
+## Libraries
+
+The following native libraries will be compiled for this project.
+
+### OpenSSL
+
+Version: `3.2.1`
+
+Make sure all the prerequisites are available on your system.
+You can read more about them [here](https://github.com/openssl/openssl/blob/openssl-3.2.1/INSTALL.md#prerequisites).

src/RyujinxAndroid/libryujinx/libs/OpenSSL.cmake

@@ -0,0 +1,31 @@
+include(ExternalProject)
+
+find_program(MAKE_COMMAND NAMES nmake make)
+
+set(PROJECT_ENV "ANDROID_NDK_ROOT=${CMAKE_ANDROID_NDK}")
+
+if (CMAKE_HOST_WIN32)
+    find_program(PERL_COMMAND NAMES perl)
+    set(PROJECT_CFG_PREFIX ${PERL_COMMAND})
+    list(APPEND PROJECT_ENV "Path=${ANDROID_TOOLCHAIN_ROOT}\\bin;$ENV{Path}")
+elseif (CMAKE_HOST_UNIX)
+    list(APPEND PROJECT_ENV "PATH=${ANDROID_TOOLCHAIN_ROOT}/bin:$ENV{PATH}")
+else ()
+    message(WARNING "Host system (${CMAKE_HOST_SYSTEM_NAME}) not supported. Treating as unix.")
+    list(APPEND PROJECT_ENV "PATH=${ANDROID_TOOLCHAIN_ROOT}/bin:$ENV{PATH}")
+endif ()
+
+ExternalProject_Add(
+        openssl
+        GIT_REPOSITORY              https://github.com/openssl/openssl.git
+        GIT_TAG                     a7e992847de83aa36be0c399c89db3fb827b0be2 # openssl-3.2.1
+        CONFIGURE_COMMAND           ${CMAKE_COMMAND} -E env ${PROJECT_ENV}
+                                    ${PROJECT_CFG_PREFIX} <SOURCE_DIR>/Configure
+                                    android-${CMAKE_ANDROID_ARCH}
+                                    -D__ANDROID_API_=${CMAKE_SYSTEM_VERSION}
+                                    --prefix=${CMAKE_LIBRARY_OUTPUT_DIRECTORY}
+                                    --libdir=""
+        BUILD_COMMAND               ${CMAKE_COMMAND} -E env ${PROJECT_ENV}
+                                    ${MAKE_COMMAND}
+        INSTALL_COMMAND             ${MAKE_COMMAND} install_runtime_libs
+)