commit f8f95fc8b1a1eb19812fc55b230da3bfbe5272e5
author David 'Digit' Turner <digit@android.com> Tue Mar 15 03:31:19 2011 -0700
committer Android Code Review <code-review@android.com> Tue Mar 15 03:31:19 2011 -0700
tree d474c62a048d6ffb6f9999c5f594db802e681d62
parent e84739e942d19955248e1fc1ce966d56543eaf0e
parent 55aad0866382e89a18d5cc49ce2c88c839b88cea

Merge "Allow win_sdk build with USE_CCACHE=1"

core/combo/select.mk

diff --git a/core/combo/select.mk b/core/combo/select.mk
index c886342..d486255 100644
--- a/core/combo/select.mk
+++ b/core/combo/select.mk
@@ -62,13 +62,23 @@
 include $(BUILD_COMBOS)/$(combo_target)$(combo_os_arch).mk
 
 ifneq ($(USE_CCACHE),)
-  ccache := prebuilt/$(HOST_PREBUILT_TAG)/ccache/ccache
-  # prepend ccache if necessary
-  ifneq ($(ccache),$(firstword $($(combo_target)CC)))
-    $(combo_target)CC := $(ccache) $($(combo_target)CC)
+  CCACHE_HOST_TAG := $(HOST_PREBUILT_TAG)
+  # If we are cross-compiling Windows binaries on Linux
+  # then use the linux ccache binary instead.
+  ifeq ($(HOST_OS)-$(BUILD_OS),windows-linux)
+    CCACHE_HOST_TAG := linux-$(BUILD_ARCH)
   endif
-  ifneq ($(ccache),$(firstword $($(combo_target)CXX)))
-    $(combo_target)CXX := $(ccache) $($(combo_target)CXX)
+  ccache := prebuilt/$(CCACHE_HOST_TAG)/ccache/ccache
+  # Check that the executable is here.
+  ccache := $(strip $(wildcard $(ccache)))
+  ifdef ccache
+    # prepend ccache if necessary
+    ifneq ($(ccache),$(firstword $($(combo_target)CC)))
+      $(combo_target)CC := $(ccache) $($(combo_target)CC)
+    endif
+    ifneq ($(ccache),$(firstword $($(combo_target)CXX)))
+      $(combo_target)CXX := $(ccache) $($(combo_target)CXX)
+    endif
+    ccache =
   endif
-  ccache =
 endif