Added libcurl submodule and CMake code for building it.

.gitmodules

@@ -7,3 +7,6 @@
 [submodule "nihstro"]
 	path = externals/nihstro
 	url = https://github.com/neobrain/nihstro.git
+[submodule "curl"]
+	path = externals/curl
+	url = https://github.com/bagder/curl.git

.travis-deps.sh

@@ -25,5 +25,5 @@ if [ "$TRAVIS_OS_NAME" = "linux" -o -z "$TRAVIS_OS_NAME" ]; then
         | sudo tar -xz -C /usr/local --strip-components=1
 elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
     brew tap homebrew/versions
-    brew install qt5 glfw3 pkgconfig
+    brew install qt5 glfw3 pkgconfig curl
 fi

CMakeLists.txt

@@ -1,6 +1,7 @@
 # CMake 2.8.11 required for Qt5 settings to be applied automatically on
 # dependent libraries.
 cmake_minimum_required(VERSION 2.8.11)
+include(ExternalProject)
 
 project(citra)
 
@@ -123,7 +124,7 @@ IF (APPLE)
     FIND_LIBRARY(IOKIT_LIBRARY IOKit)           # GLFW dependency
     FIND_LIBRARY(COREVIDEO_LIBRARY CoreVideo)   # GLFW dependency
     set(PLATFORM_LIBRARIES iconv ${COCOA_LIBRARY} ${IOKIT_LIBRARY} ${COREVIDEO_LIBRARY})
-    
+
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++")
 ELSEIF(MINGW)
@@ -185,6 +186,26 @@ set(INI_PREFIX "${CMAKE_CURRENT_SOURCE_DIR}/externals/inih")
 include_directories(${INI_PREFIX})
 add_subdirectory(${INI_PREFIX})
 
+find_package(CURL 7.28.0)
+if (NOT CURL_FOUND)
+    set(CURL_SOURCE_PREFIX "${CMAKE_CURRENT_SOURCE_DIR}/externals/curl")
+    set(CURL_BUILT_PREFIX "${CMAKE_CURRENT_BINARY_DIR}/externals/curl")
+    externalproject_add(
+        PREFIX SOURCE_DIR ${CURL_SOURCE_PREFIX}
+        CMAKE_CACHE_ARGS
+          -DBUILD_CURL_EXE:string=off
+          -DBUILD_CURL_TESTS:string=off
+          -DHTTP_ONLY:string=on
+          -DENABLE_MANUAL:string=off
+          -DCMAKE_INSTALL_PREFIX:string=${CURL_BUILT_PREFIX}
+        )
+    include_directories("${CURL_BUILT_PREFIX}/include")
+    link_directories("${CURL_BUILT_PREFIX}/lib")
+    set(CURL_LIBRARIES "curl")
+else()
+    include_directories(${CURL_INCLUDE_DIRS})
+endif()
+
 include_directories(externals/nihstro/include)
 
 # process subdirectories

appveyor.yml

@@ -16,7 +16,7 @@ configuration:
   - Release
 
 install:
-  - git submodule update --init --recursive --depth 20
+  - git submodule update --init --recursive
 
 before_build:
   - mkdir build

externals/curl

@@ -0,0 +1 @@
+Subproject commit 26cb9f1646e9b6be7925c18e439a683ca4c31555

src/citra/CMakeLists.txt

@@ -16,6 +16,6 @@ create_directory_groups(${SRCS} ${HEADERS})
 add_executable(citra ${SRCS} ${HEADERS})
 target_link_libraries(citra core common video_core)
 target_link_libraries(citra ${GLFW_LIBRARIES} ${OPENGL_gl_LIBRARY} inih)
-target_link_libraries(citra ${PLATFORM_LIBRARIES})
+target_link_libraries(citra ${PLATFORM_LIBRARIES} ${CURL_LIBRARIES})
 
 #install(TARGETS citra RUNTIME DESTINATION ${bindir})

src/citra_qt/CMakeLists.txt

@@ -71,6 +71,6 @@ else()
 endif()
 target_link_libraries(citra-qt core common video_core qhexedit)
 target_link_libraries(citra-qt ${OPENGL_gl_LIBRARY} ${CITRA_QT_LIBS})
-target_link_libraries(citra-qt ${PLATFORM_LIBRARIES})
+target_link_libraries(citra-qt ${PLATFORM_LIBRARIES} ${CURL_LIBRARIES})
 
 #install(TARGETS citra-qt RUNTIME DESTINATION ${bindir})