1 files changed, 3 insertions, 1 deletions
diff --git a/config.mk b/config.mk
index 6561b50..d622409 100644
--- a/config.mk
+++ b/config.mk
@@ -1,3 +1,5 @@
+# You may want to remove -DHAVE_PRCTL from CPPFLAGS if you are not using Linux.
+
 CFLAGS   = -std=c99 -Wall -pedantic -O2
-CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_FILE_OFFSET_BITS=64
+CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_FILE_OFFSET_BITS=64 -DHAVE_PRCTL
 LDFLAGS  = -lm -s