configure: allow building with python3

Pretty much all of the scripts are python2+3 compatible.
Check and allow using python3, while adjusting the PYTHON2 refs.

Note:
 - python3.4 is used as it's the earliest supported version
 - python2 chosen prior to python3

v2: use python2 by default

Cc: Ilia Mirkin <[email protected]>
Signed-off-by: Emil Velikov <[email protected]>
Acked-by: Eric Engestrom <[email protected]>

5 files changed, 5 insertions, 5 deletions

diff --git a/src/gallium/auxiliary/Makefile.am b/src/gallium/auxiliary/Makefile.am
index 4bfa7648389..d7d803a961c 100644
--- a/src/gallium/auxiliary/Makefile.am
+++ b/src/gallium/auxiliary/Makefile.am
@@ -54,7 +54,7 @@ libgallium_la_SOURCES += \
 endif
 
 MKDIR_GEN = $(AM_V_at)$(MKDIR_P) $(@D)
-PYTHON_GEN =  $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS)
+PYTHON_GEN =  $(AM_V_GEN)$(PYTHON) $(PYTHON_FLAGS)
 
 indices/u_indices_gen.c: indices/u_indices_gen.py
 	$(MKDIR_GEN)
diff --git a/src/gallium/drivers/freedreno/Makefile.am b/src/gallium/drivers/freedreno/Makefile.am
index 2024a2da232..a92da1f561d 100644
--- a/src/gallium/drivers/freedreno/Makefile.am
+++ b/src/gallium/drivers/freedreno/Makefile.am
@@ -13,7 +13,7 @@ AM_CFLAGS = \
 MKDIR_GEN = $(AM_V_at)$(MKDIR_P) $(@D)
 ir3/ir3_nir_trig.c: ir3/ir3_nir_trig.py $(top_srcdir)/src/compiler/nir/nir_algebraic.py
 	$(MKDIR_GEN)
-	$(AM_V_GEN) $(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/ir3/ir3_nir_trig.py -p $(top_srcdir)/src/compiler/nir > $@ || ($(RM) $@; false)
+	$(AM_V_GEN) $(PYTHON) $(PYTHON_FLAGS) $(srcdir)/ir3/ir3_nir_trig.py -p $(top_srcdir)/src/compiler/nir > $@ || ($(RM) $@; false)
 
 noinst_LTLIBRARIES = libfreedreno.la
 
diff --git a/src/gallium/drivers/r600/Makefile.am b/src/gallium/drivers/r600/Makefile.am
index 1138de985dd..c5b41cce26e 100644
--- a/src/gallium/drivers/r600/Makefile.am
+++ b/src/gallium/drivers/r600/Makefile.am
@@ -3,7 +3,7 @@ include $(top_srcdir)/src/gallium/Automake.inc
 
 egd_tables.h: $(srcdir)/egd_tables.py $(srcdir)/evergreend.h
 	$(AM_V_at)$(MKDIR_P) $(@D)
-	$(AM_V_GEN) $(PYTHON2) $(srcdir)/egd_tables.py $(srcdir)/evergreend.h > $@
+	$(AM_V_GEN) $(PYTHON) $(srcdir)/egd_tables.py $(srcdir)/evergreend.h > $@
 
 BUILT_SOURCES = $(R600_GENERATED_FILES)
 AM_CFLAGS = \
diff --git a/src/gallium/drivers/radeonsi/Makefile.am b/src/gallium/drivers/radeonsi/Makefile.am
index 62b877d4ea4..317ae7ea19f 100644
--- a/src/gallium/drivers/radeonsi/Makefile.am
+++ b/src/gallium/drivers/radeonsi/Makefile.am
@@ -48,7 +48,7 @@ GEN_DRIINFO_INPUTS = \
 	$(top_srcdir)/src/gallium/auxiliary/pipe-loader/driinfo_gallium.h \
 	$(srcdir)/driinfo_radeonsi.h
 
-PYTHON_GEN = $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS)
+PYTHON_GEN = $(AM_V_GEN)$(PYTHON) $(PYTHON_FLAGS)
 MERGE_DRIINFO = $(top_srcdir)/src/util/merge_driinfo.py
 
 si_driinfo.h: $(MERGE_DRIINFO) $(GEN_DRIINFO_INPUTS)
diff --git a/src/gallium/drivers/swr/Makefile.am b/src/gallium/drivers/swr/Makefile.am
index d20a6bdbed3..3390ef6b096 100644
--- a/src/gallium/drivers/swr/Makefile.am
+++ b/src/gallium/drivers/swr/Makefile.am
@@ -98,7 +98,7 @@ BUILT_SOURCES = \
 	rasterizer/core/backends/gen_rasterizer.hpp
 
 MKDIR_GEN = $(AM_V_at)$(MKDIR_P) $(@D)
-PYTHON_GEN = $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS)
+PYTHON_GEN = $(AM_V_GEN)$(PYTHON) $(PYTHON_FLAGS)
 gen_swr_context_llvm.h: rasterizer/codegen/gen_llvm_types.py rasterizer/codegen/templates/gen_llvm.hpp swr_context.h
 	$(PYTHON_GEN) \
 		$(srcdir)/rasterizer/codegen/gen_llvm_types.py \