Rename MC_NEED_PTRACE -> SIMGRID_MC_NEED_PTRACE for consistency.

diff --git a/src/mc/mc_environ.h b/src/mc/mc_environ.h
index f285d65..a6e8979 100644 (file)
--- a/src/mc/mc_environ.h
+++ b/src/mc/mc_environ.h
@@ -18,7 +18,7 @@
 
 /** Environment variable name defined when ptrace(2) is used to control the MCed process.
  */
-#define MC_ENV_NEED_PTRACE "MC_NEED_PTRACE"
+#define MC_ENV_NEED_PTRACE "SIMGRID_MC_NEED_PTRACE"
 
 /** Environment variable used to request additional system statistics.
  */