Add Sh4lt as a submodule

.gitmodules

@@ -34,3 +34,6 @@
 [submodule "external/stduuid"]
 	path = external/stduuid
 	url = https://github.com/mariusbancila/stduuid.git
+[submodule "external/sh4lt"]
+	path = external/sh4lt
+	url = https://gitlab.com/sh4lt/sh4lt.git

external/build_sh4lt.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+SOURCE_DIR="$(cd $(dirname ${BASH_SOURCE[0]}) && pwd)"
+
+cd ${SOURCE_DIR}/sh4lt
+rm -rf build
+mkdir build && cd build
+cmake -GNinja -DCMAKE_INSTALL_PREFIX=${SOURCE_DIR}/third_parties -DCMAKE_BUILD_TYPE=Release -DSH4LT_WITH_PYTHON=off ..
+ninja && ninja install

external/build_zmq.sh

@@ -2,14 +2,6 @@
 
 SOURCE_DIR="$(cd $(dirname ${BASH_SOURCE[0]}) && pwd)"
 
-if hash nproc; then
-    CPU_COUNT=$(nproc)
-elif hash gnproc; then
-    CPU_COUNT=$(gnproc)
-else
-    CPU_COUNT=1
-fi
-
 cd ${SOURCE_DIR}/zmq
 rm -rf build
 mkdir build && cd build

make_deps.sh

@@ -18,3 +18,7 @@ fi
 # ZMQ
 echo "Building ZMQ..."
 ./build_zmq.sh
+
+# Sh4lt
+echo "Building Sh4lt..."
+./build_sh4lt.sh

src/CMakeLists.txt

@@ -373,8 +373,14 @@ endif()
 
 if (USE_SYSTEM_LIBS)
     target_link_libraries(splash-${API_VERSION} zmq)
+    if (HAVE_SH4LT)
+        target_link_libraries(splash-${API_VERSION} sh4lt-0.1)
+    endif()
 else()
     target_link_libraries(splash-${API_VERSION} zmq.a)
+    if (HAVE_SH4LT)
+        target_link_libraries(splash-${API_VERSION} sh4lt-0.1_static.a)
+    endif()
 endif()
 
 # System libs