make repeated 'make distclean' not fail

[ghc-hetmet.git] / rules / build-dependencies.mk

diff --git a/rules/build-dependencies.mk b/rules/build-dependencies.mk
index 860a2f6..ae1d5ad 100644 (file)
--- a/rules/build-dependencies.mk
+++ b/rules/build-dependencies.mk
@@ -1,3 +1,15 @@
+# -----------------------------------------------------------------------------
+#
+# (c) 2009 The University of Glasgow
+#
+# This file is part of the GHC build system.
+#
+# To understand how the build system works and how to modify it, see
+#      http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
+#      http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
+#
+# -----------------------------------------------------------------------------
+
 
 define build-dependencies # args: $1 = dir, $2 = distdir
 
@@ -11,7 +23,7 @@ ifneq "$$($1_$2_NO_BUILD_DEPS)" "YES"
 
 $$($1_$2_depfile) : $$(MKDIRHIER) $$(MKDEPENDC) $$($1_$2_HS_SRCS) $$($1_$2_HS_BOOT_SRCS) $$($1_$2_HC_MK_DEPEND_DEP) $$($1_$2_C_FILES) $$($1_$2_S_FILES)
        $$(MKDIRHIER) $1/$2/build
-       $(RM) $$@ $$@.tmp
+       $$(RM) $$@ $$@.tmp
        touch $$@.tmp
 ifneq "$$($1_$2_C_SRCS)$$($1_$2_S_SRCS)" ""
        $$(MKDEPENDC) -f $$($1_$2_depfile).tmp $$($1_MKDEPENDC_OPTS) $$(foreach way,$$($1_WAYS),-s $$(way)) -- $$($1_$2_v_ALL_CC_OPTS) -- $$($1_$2_C_FILES) $$($1_$2_S_FILES) || ( $$(RM) $$@; exit 1 )