X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=mk%2Fsuffix.mk;h=a975c5d83348215207469118c344d778d38eacb4;hb=f04449358ab25d8dbf606b0dc8ba9266a03f7f92;hp=3fddbd8254d4fd52919d608fa144762f0cc8169e;hpb=9e9495e2fe85ede50c2d034e3514cc00a0c0f944;p=ghc-hetmet.git

diff --git a/mk/suffix.mk b/mk/suffix.mk
index 3fddbd8..a975c5d 100644
--- a/mk/suffix.mk
+++ b/mk/suffix.mk
@@ -328,6 +328,9 @@ endif
 #-----------------------------------------------------------------------------
 # Preprocessor suffix rule
 
+# Note use of -P option to prevent #line pragmas being left in the CPP
+# output.
+
 % : %.pp
 	@$(RM) $@
-	$(CPP) $(RAWCPP_FLAGS) $(CPP_OPTS) -x c $< | $(SED) -e '/^#/d' > $@
+	$(CPP) $(RAWCPP_FLAGS) -P $(CPP_OPTS) -x c $< > $@