glsl: automake: rework the sources generation rules

The glsl equivalent of "mesa: automake: rework the source generation
rules". Plus let's make things consistent and always explicitly provide
the header name.

v2: Rebase on top of reverted "remove custom AM_V_LEX/YACC" (Matt)

Cc: 11.0 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
(cherry picked from commit 9e0594418d8fa47e19bfe57450198d3fa7d087a0)

diff --git a/src/glsl/Makefile.am b/src/glsl/Makefile.am
index 98dcb37..9a7f33d 100644 (file)
--- a/src/glsl/Makefile.am
+++ b/src/glsl/Makefile.am
@@ -197,19 +197,23 @@ am__v_YACC_ = $(am__v_YACC_$(AM_DEFAULT_VERBOSITY))
 am__v_YACC_0 = @echo "  YACC    " $@;
 am__v_YACC_1 =
 
+MKDIR_GEN = $(AM_V_at)$(MKDIR_P) $(@D)
+YACC_GEN = $(AM_V_YACC)$(YACC) $(YFLAGS)
+LEX_GEN = $(AM_V_LEX)$(LEX) $(LFLAGS)
+
 glsl_parser.cpp glsl_parser.h: glsl_parser.yy
-       $(AM_V_YACC) $(YACC) $(YFLAGS) -o $@ -p "_mesa_glsl_" --defines=$(builddir)/glsl_parser.h $<
+       $(YACC_GEN) -o $@ -p "_mesa_glsl_" --defines=$(builddir)/glsl_parser.h $(srcdir)/glsl_parser.yy
 
 glsl_lexer.cpp: glsl_lexer.ll
-       $(AM_V_LEX) $(LEX) $(LFLAGS) -o $@ $<
+       $(LEX_GEN) -o $@ $(srcdir)/glsl_lexer.ll
 
 glcpp/glcpp-parse.c glcpp/glcpp-parse.h: glcpp/glcpp-parse.y
-       $(AM_V_at)$(MKDIR_P) glcpp
-       $(AM_V_YACC) $(YACC) $(YFLAGS) -o $@ -p "glcpp_parser_" --defines=$(builddir)/glcpp/glcpp-parse.h $<
+       $(MKDIR_GEN)
+       $(YACC_GEN) -o $@ -p "glcpp_parser_" --defines=$(builddir)/glcpp/glcpp-parse.h $(srcdir)/glcpp/glcpp-parse.y
 
 glcpp/glcpp-lex.c: glcpp/glcpp-lex.l
-       $(AM_V_at)$(MKDIR_P) glcpp
-       $(AM_V_LEX) $(LEX) $(LFLAGS) -o $@ $<
+       $(MKDIR_GEN)
+       $(LEX_GEN) -o $@ $(srcdir)/glcpp/glcpp-lex.l
 
 # Only the parsers (specifically the header files generated at the same time)
 # need to be in BUILT_SOURCES. Though if we list the parser headers YACC is
@@ -239,22 +243,24 @@ dist-hook:
        $(RM) glcpp/tests/*.out
        $(RM) glcpp/tests/subtest*/*.out
 
+PYTHON_GEN = $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS)
+
 nir/nir_builder_opcodes.h: nir/nir_opcodes.py nir/nir_builder_opcodes_h.py
-       $(AM_V_at)$(MKDIR_P) nir
-       $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/nir/nir_builder_opcodes_h.py > $@
+       $(MKDIR_GEN)
+       $(PYTHON_GEN) $(srcdir)/nir/nir_builder_opcodes_h.py > $@
 
 nir/nir_constant_expressions.c: nir/nir_opcodes.py nir/nir_constant_expressions.py nir/nir_constant_expressions.h
-       $(AM_V_at)$(MKDIR_P) nir
-       $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/nir/nir_constant_expressions.py > $@
+       $(MKDIR_GEN)
+       $(PYTHON_GEN) $(srcdir)/nir/nir_constant_expressions.py > $@
 
 nir/nir_opcodes.h: nir/nir_opcodes.py nir/nir_opcodes_h.py
-       $(AM_V_at)$(MKDIR_P) nir
-       $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/nir/nir_opcodes_h.py > $@
+       $(MKDIR_GEN)
+       $(PYTHON_GEN) $(srcdir)/nir/nir_opcodes_h.py > $@
 
 nir/nir_opcodes.c: nir/nir_opcodes.py nir/nir_opcodes_c.py
-       $(AM_V_at)$(MKDIR_P) nir
-       $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/nir/nir_opcodes_c.py > $@
+       $(MKDIR_GEN)
+       $(PYTHON_GEN) $(srcdir)/nir/nir_opcodes_c.py > $@
 
 nir/nir_opt_algebraic.c: nir/nir_opt_algebraic.py nir/nir_algebraic.py
-       $(AM_V_at)$(MKDIR_P) nir
-       $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/nir/nir_opt_algebraic.py > $@
+       $(MKDIR_GEN)
+       $(PYTHON_GEN) $(srcdir)/nir/nir_opt_algebraic.py > $@