Merge commit '227425b90e9a671118026689dd30967e127a1090' as 'external/toxcore/c-toxcore'

external/toxcore/c-toxcore/cmake/Dependencies.cmake

@@ -0,0 +1,76 @@
+###############################################################################
+#
+# :: For UNIX-like systems that have pkg-config.
+#
+###############################################################################
+
+include(ModulePackage)
+
+find_package(Threads REQUIRED)
+
+find_library(NSL_LIBRARIES          nsl          )
+find_library(RT_LIBRARIES           rt           )
+find_library(SOCKET_LIBRARIES       socket       )
+
+# For toxcore.
+pkg_use_module(LIBSODIUM            libsodium    )
+
+# For toxav.
+pkg_use_module(OPUS                 "opus;Opus"  )
+pkg_use_module(VPX                  "vpx;libvpx" )
+
+# For tox-bootstrapd.
+pkg_use_module(LIBCONFIG            libconfig    )
+
+###############################################################################
+#
+# :: For MSVC Windows builds.
+#
+# These require specific installation paths of dependencies:
+# - libsodium in third-party/libsodium/Win32/Release/v140/dynamic
+# - pthreads in third-party/pthreads-win32/Pre-built.2
+#
+###############################################################################
+
+if(MSVC)
+  # libsodium
+  # ---------
+  if(NOT LIBSODIUM_FOUND)
+    find_library(LIBSODIUM_LIBRARIES
+      NAMES sodium libsodium
+      PATHS
+        "third_party/libsodium/Win32/Release/v140/dynamic"
+        "third_party/libsodium/x64/Release/v140/dynamic"
+    )
+    if(LIBSODIUM_LIBRARIES)
+      include_directories("third_party/libsodium/include")
+      set(LIBSODIUM_FOUND TRUE)
+      message("libsodium: ${LIBSODIUM_LIBRARIES}")
+    else()
+      message(FATAL_ERROR "libsodium libraries not found")
+    endif()
+  endif()
+
+  # pthreads
+  # --------
+  if(CMAKE_USE_WIN32_THREADS_INIT)
+    find_library(CMAKE_THREAD_LIBS_INIT
+      NAMES pthreadVC2
+      PATHS
+        "third_party/pthreads-win32/Pre-built.2/lib/x86"
+        "third_party/pthreads-win32/Pre-built.2/lib/x64"
+    )
+    if(CMAKE_THREAD_LIBS_INIT)
+      include_directories("third_party/pthreads-win32/Pre-built.2/include")
+      add_definitions(-DHAVE_STRUCT_TIMESPEC)
+      message("libpthreads: ${CMAKE_THREAD_LIBS_INIT}")
+    else()
+      find_package(pthreads4w)
+      if(NOT pthreads4w_FOUND)
+        message(FATAL_ERROR "libpthreads libraries not found")
+      endif()
+      include_directories(${pthreads4w_INCLUDE_DIR})
+      link_libraries(${pthreads4w_LIBRARIES})
+    endif()
+  endif()
+endif()