auxiliary: rework the python generated sources rules

There are a few bits this commit aims to resolve:

One can generalise the mkdir rule to a simple MKDIR_P $(@D) which will
expand appropriately for even if we change the subdir name, and/or add
new rules. We can also drop the explicit $(srcdir) prefix for the
dependency rules, they they are not strictly required, nor used
elsewhere in mesa.

Finally replace $< with explicit filename to be consistent through the
file, and honour PYTHON_FLAGS.

v2: Add comprehensive commit summary/message (Ian, Matt)

Cc: 11.0 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>

diff --git a/src/gallium/auxiliary/Makefile.am b/src/gallium/auxiliary/Makefile.am
index 04f77d0..a728162 100644 (file)
--- a/src/gallium/auxiliary/Makefile.am
+++ b/src/gallium/auxiliary/Makefile.am
@@ -38,18 +38,23 @@ libgallium_la_SOURCES += \
 
 endif
 
-indices/u_indices_gen.c: $(srcdir)/indices/u_indices_gen.py
-       $(AM_V_at)$(MKDIR_P) indices
-       $(AM_V_GEN) $(PYTHON2) $< > $@
-
-indices/u_unfilled_gen.c: $(srcdir)/indices/u_unfilled_gen.py
-       $(AM_V_at)$(MKDIR_P) indices
-       $(AM_V_GEN) $(PYTHON2) $< > $@
-
-util/u_format_table.c: $(srcdir)/util/u_format_table.py $(srcdir)/util/u_format_pack.py $(srcdir)/util/u_format_parse.py $(srcdir)/util/u_format.csv
-       $(AM_V_at)$(MKDIR_P) util
-       $(AM_V_GEN) $(PYTHON2) $(srcdir)/util/u_format_table.py $(srcdir)/util/u_format.csv > $@
-
+MKDIR_GEN = $(AM_V_at)$(MKDIR_P) $(@D)
+PYTHON_GEN =  $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS)
+
+indices/u_indices_gen.c: indices/u_indices_gen.py
+       $(MKDIR_GEN)
+       $(PYTHON_GEN) $(srcdir)/indices/u_indices_gen.py > $@
+
+indices/u_unfilled_gen.c: indices/u_unfilled_gen.py
+       $(MKDIR_GEN)
+       $(PYTHON_GEN) $(srcdir)/indices/u_unfilled_gen.py > $@
+
+util/u_format_table.c: util/u_format_table.py \
+                       util/u_format_pack.py \
+                       util/u_format_parse.py \
+                       util/u_format.csv
+       $(MKDIR_GEN)
+       $(PYTHON_GEN) $(srcdir)/util/u_format_table.py $(srcdir)/util/u_format.csv > $@
 
 noinst_LTLIBRARIES += libgalliumvl_stub.la
 libgalliumvl_stub_la_SOURCES = \