Fix HAVE_FOOBAR flags handling

[simgrid.git] / src / mc / mc_unw_vmread.cpp

diff --git a/src/mc/mc_unw_vmread.cpp b/src/mc/mc_unw_vmread.cpp
index e3fba78..29b015b 100644 (file)
--- a/src/mc/mc_unw_vmread.cpp
+++ b/src/mc/mc_unw_vmread.cpp
@@ -52,7 +52,7 @@ static int access_mem(const unw_addr_space_t as,
   pid_t pid = _UPT_getpid(arg);
   size_t size = sizeof(unw_word_t);
 
-#ifdef HAVE_PROCESS_VM_READV
+#if HAVE_PROCESS_VM_READV
   // process_vm_read implementation.
   // This is only available since Linux 3.2.