Started work on build system

fpc/library/runner.cpp

@@ -0,0 +1,37 @@
+#include "runner.h"
+#include "tier0/platform.h"
+#include "tier1/utlstring.h"
+#include "tier1/utlvector.h"
+#include "unistd.h"
+#include "sys/wait.h"
+int IRunner::Run(CUtlString szName, CUtlVector<CUtlString>& args)
+{
+	pid_t pid = fork();
+	if (pid < 0)
+		Plat_FatalErrorFunc("Failed to fork");
+	/* child */
+	if (pid == 0)
+	{
+		CUtlVector<const char*> execargs;
+		execargs.AppendTail(szName);
+		for (auto &arg: args)
+		{
+			execargs.AppendTail(arg);
+		}
+		execargs.AppendTail(0);
+		execvp(szName, (char *const*)execargs.GetData());
+	}
+	/* parent */
+	wait(NULL);
+	return 0;
+}
+
+int IRunner::Run(CUtlString szName, CUtlString szDirectory, CUtlVector<CUtlString>& args)
+{
+}
+
+int IRunner::Run(CUtlString szName, CUtlString szDirectory, CUtlVector<CUtlString>& args, CUtlVector<CUtlString>& environment)
+{
+
+}
+