Add PYTHON definition to Makefile.

Add PYTHON definition to Makefile so users can override it.  This
allows users to specify an exact python executable name to use during
the build.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
(backported from 97f1ffcfac4ca382b5008a7aabfc2c300131f978)

diff --git a/Makefile b/Makefile
index 7d511e8594f6a5f6678a88ffd3643cca7cc69e16..30b19d4b2c53d7bd1a5c2c76658ad884b2482dac 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -61,6 +61,7 @@ endif
 OBJCOPY=objcopy
 OBJDUMP=objdump
 STRIP=strip
+PYTHON=python
 
 .PHONY : all clean distclean FORCE
 
@@ -141,7 +142,7 @@ $(OUT)romlayout16.lds: $(OUT)ccode32flat.o $(OUT)code32seg.o $(OUT)code16.o tool
        $(Q)$(OBJDUMP) -thr $(OUT)code32flat.o > $(OUT)code32flat.o.objdump
        $(Q)$(OBJDUMP) -thr $(OUT)code32seg.o > $(OUT)code32seg.o.objdump
        $(Q)$(OBJDUMP) -thr $(OUT)code16.o > $(OUT)code16.o.objdump
-       $(Q)./tools/layoutrom.py $(OUT)code16.o.objdump $(OUT)code32seg.o.objdump $(OUT)code32flat.o.objdump $(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds
+       $(Q)$(PYTHON) ./tools/layoutrom.py $(OUT)code16.o.objdump $(OUT)code32seg.o.objdump $(OUT)code32flat.o.objdump $(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds
 
 # These are actually built by tools/layoutrom.py above, but by pulling them
 # into an extra rule we prevent make -j from spawning layoutrom.py 4 times.
@@ -163,7 +164,7 @@ $(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py
        @echo "  Prepping $@"
        $(Q)$(OBJDUMP) -thr $< > $<.objdump
        $(Q)$(OBJCOPY) -O binary $< $(OUT)bios.bin.raw
-       $(Q)./tools/checkrom.py $<.objdump $(OUT)bios.bin.raw $(OUT)bios.bin
+       $(Q)$(PYTHON) ./tools/checkrom.py $<.objdump $(OUT)bios.bin.raw $(OUT)bios.bin
        $(Q)$(STRIP) -R .comment $< -o $(OUT)bios.bin.elf
 
 
@@ -189,7 +190,7 @@ $(OUT)vgabios.bin.raw: $(OUT)vgarom.o
 
 $(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
        @echo "  Finalizing rom $@"
-       $(Q)./tools/buildrom.py $< $@
+       $(Q)$(PYTHON) ./tools/buildrom.py $< $@
 
 ####### dsdt build rules
 src/%.hex: src/%.dsl