Simplify build

.gitmodules

+[submodule "libvncserver"]
+	path = libvncserver
+	url = https://github.com/LibVNC/libvncserver

BUILD.md

 # Building
 
-## Preparation
-
 Download the [reMarkable toolchain](https://remarkable.engineering/), install it and source it.
 
 ```sh
 curl https://remarkable.engineering/oecore-x86_64-cortexa9hf-neon-toolchain-zero-gravitas-1.8-23.9.2019.sh -o install-toolchain.sh
 chmod u+x install-toolchain.sh
 ./install-toolchain.sh
+source /usr/local/oecore-x86_64/environment-setup-cortexa9hf-neon-oe-linux-gnueabi
 ```
 
-Clone this repository and change directory into it.
+Clone this repository with its dependencies and change directory into it.
 
 ```sh
-git clone git@forge.delab.re:matteo/rmvncclient.git
+git clone --recursive git@forge.delab.re:matteo/rmvncclient.git
 cd rmvncclient
 ```
 
 Create a directory for build artifacts.
 
-```sh
-mkdir build
-cd build
-```
-
-## Build `libvncserver`
-
-In this section, we will build `libvncserver`, which is a required dependency of `rmvncclient`, for the reMarkable.
-Firstly, clone the repository and change directory into it.
-
-```sh
-git clone https://github.com/LibVNC/libvncserver
-cd libvncserver
-```
-
-Change the first four lines in `libvncclient.pc.cmakein` to the following.
-
-```pc
-prefix=/usr
-exec_prefix=${prefix}
-libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
-includedir=${prefix}/include
-```
-
-Create a directory in which build artifacts for `libvncserver` will be placed.
-
 ```sh
 mkdir -p build/Release
 cd build/Release
@@ -52,46 +25,6 @@ cd build/Release
 
 Run CMake configuration.
 
-```sh
-cmake ../.. \
-    -DCMAKE_BUILD_TYPE=Release \
-    -DCMAKE_INSTALL_PREFIX="$SDKTARGETSYSROOT/usr" \
-    -DBUILD_SHARED_LIBS=OFF \
-    -DWITH_GNUTLS=OFF
-```
-
-The output should not contain any error and should end with those lines:
-
-```txt
--- Configuring done
--- Generating done
--- Build files have been written to: (...)/rmvncclient/build/libvncserver/build/Release
-```
-
-Run build.
-
-```sh
-make
-```
-
-Install the libraries into your system. They will be installed into the reMarkable SDK, which is safely outside of your OS package manager’s files.
-
-```sh
-sudo make install
-```
-
-## Build `rmvncclient`
-
-Go back to the main build directory and create a new build directory for `rmvncclient` itself.
-
-```sh
-cd ../../..
-mkdir Release
-cd Release
-```
-
-Run CMake configuration.
-
 ```sh
 cmake ../.. -DCMAKE_BUILD_TYPE=Release
 ```
@@ -101,7 +34,7 @@ The output should not contain any error and should end with those lines:
 ```txt
 -- Configuring done
 -- Generating done
--- Build files have been written to: /home/matteo/Projects/rmvncclient/build/Release
+-- Build files have been written to: …/rmvncclient/build/Release
 ```
 
 Run build.

CMakeLists.txt

@@ -30,11 +30,7 @@ if(TRACE)
     add_definitions(-DTRACE)
 endif()
 
-# Find dependencies
-find_package(PkgConfig REQUIRED)
-pkg_check_modules(VNCCLIENT REQUIRED IMPORTED_TARGET libvncclient)
-set_property(TARGET PkgConfig::VNCCLIENT PROPERTY
-    INTERFACE_LINK_LIBRARIES "${VNCCLIENT_STATIC_LIBRARIES}")
+add_subdirectory(libvncserver)
 
 add_executable(rmvncclient
     src/rmioc/input.cpp
@@ -46,5 +42,8 @@ add_executable(rmvncclient
 )
 
 set_property(TARGET rmvncclient PROPERTY CXX_STANDARD 17)
-
-target_link_libraries(rmvncclient PUBLIC PkgConfig::VNCCLIENT)
+target_link_libraries(rmvncclient PRIVATE vncclient)
+target_include_directories(rmvncclient PRIVATE
+    ${CMAKE_CURRENT_BINARY_DIR}/libvncserver
+    libvncserver
+)

libvncserver @ 8df61112

+Subproject commit 8df6111290859b6f63cf9c2a091f660349c7ba35