Sprinkle a few <cstdlib> includes, for libomptarget sources using

malloc, free, alloca and getenv.  NFCI.

llvm-svn: 322869

openmp/libomptarget/src/api.cpp

@@ -19,6 +19,7 @@
 
 #include <climits>
 #include <cstring>
+#include <cstdlib>
 
 EXTERN int omp_get_num_devices(void) {
   RTLsMtx.lock();

openmp/libomptarget/src/interface.cpp

@@ -19,6 +19,7 @@
 #include "rtl.h"
 
 #include <cassert>
+#include <cstdlib>
 
 ////////////////////////////////////////////////////////////////////////////////
 /// adds a target shared library to the target execution image

openmp/libomptarget/src/rtl.cpp

@@ -16,6 +16,7 @@
 #include "rtl.h"
 
 #include <cassert>
+#include <cstdlib>
 #include <cstring>
 #include <dlfcn.h>
 #include <mutex>