Index: systemtap/dtrace.in
===================================================================
--- systemtap.orig/dtrace.in
+++ systemtap/dtrace.in
@@ -443,7 +443,7 @@ def main():
         cflags = "-g " + os.environ.get("CFLAGS", "").replace('\\\n', ' ').replace('\\\r',' ')
         # sanitize any embedded \n etc. goo; PR21063
         retcode = call(split(cc1) + defines + includes + split(cflags) +
-             ["-fPIC", "-I.", "-I@prefix@/include", "-c", fname, "-o",
+             ["-fPIC", "-I.", "-c", fname, "-o",
               filename + suffix], shell=False)
         if retcode != 0:
             print("\"gcc " + fname + "\" failed")