Install builder cannot replace a currently executing binary on Linux - close #112

build_tests/install_running_exe/Rsconscript

@@ -0,0 +1,6 @@
+build do
+  Environment.new do |env|
+    env.Program("program.exe", "program.c")
+    env.Install("install/program.exe", "program.exe")
+  end
+end

build_tests/install_running_exe/program.c

@@ -0,0 +1,8 @@
+#include <stdio.h>
+#include <unistd.h>
+
+int main(int argc, char * argv[])
+{
+    sleep(2);
+    return 0;
+}