version --build-options: also report host CPU

diff --git a/Makefile b/Makefile
index fef9c8d2725d6806d9ef4516de64c6d68bd7a7fe..5587bccc932fdae37831dedba29680fb13b6ae29 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -425,6 +425,9 @@ all::
 #
 # to say "export LESS=FRX (and LV=-c) if the environment variable
 # LESS (and LV) is not set, respectively".
+#
+# When cross-compiling, define HOST_CPU as the canonical name of the CPU on
+# which the built Git will run (for instance "x86_64").
 
 GIT-VERSION-FILE: FORCE
        @$(SHELL_PATH) ./GIT-VERSION-GEN
@@ -1095,6 +1098,12 @@ else
 BROKEN_PATH_FIX = '/^\# @@BROKEN_PATH_FIX@@$$/d'
 endif
 
+ifeq (,$(HOST_CPU))
+       BASIC_CFLAGS += -DGIT_HOST_CPU="\"$(firstword $(subst -, ,$(uname_M)))\""
+else
+       BASIC_CFLAGS += -DGIT_HOST_CPU="\"$(HOST_CPU)\""
+endif
+
 ifneq (,$(INLINE))
        BASIC_CFLAGS += -Dinline=$(INLINE)
 endif