Mesa (master): Fix building glsl when using automake-1.12 after 68e04cc6

[Jon TURNEY]

Module: Mesa
Branch: master
Commit: 81de0431d6f52084e01874163657e141e6beffdf
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=81de0431d6f52084e01874163657e141e6beffdf

Author: Jon TURNEY <jon.turney at dronecode.org.uk>
Date:   Fri Jul 13 22:29:03 2012 +0100

Fix building glsl when using automake-1.12 after 68e04cc6

Commit 68e04cc6 was tested using automake-1.11.  Unfortunately, automake-1.12
made a "slightly backward-incompatible change" in the use of yacc with C++, and
for a .yy file, the generated header file is now named .hh, not .h

To work with both, write our own rule for running yacc, which generates a
header file named .h, rather than using automake's rule.

Also, remove things from BUILD_SOURCES which don't need to be there

Also, update EXCLUDE rules in doxygen/glsl.doxy, for change of generated files
from .cpp -> .cc, and glsl_lexer.h has never existed.

Signed-off-by: Jon TURNEY <jon.turney at dronecode.org.uk>

---

 doxygen/glsl.doxy    |    5 ++---
 src/glsl/Makefile.am |   14 ++++++++++----
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/doxygen/glsl.doxy b/doxygen/glsl.doxy
index 5411ec4..aa907ae 100644
--- a/doxygen/glsl.doxy
+++ b/doxygen/glsl.doxy
@@ -11,9 +11,8 @@ PROJECT_NAME           = "Mesa GLSL module"
 #---------------------------------------------------------------------------
 INPUT                  = ../src/glsl/
 RECURSIVE              = NO
-EXCLUDE                = ../src/glsl/glsl_lexer.cpp \
-                         ../src/glsl/glsl_lexer.h \
-                         ../src/glsl/glsl_parser.cpp \
+EXCLUDE                = ../src/glsl/glsl_lexer.cc \
+                         ../src/glsl/glsl_parser.cc \
                          ../src/glsl/glsl_parser.h
 EXCLUDE_PATTERNS       =
 #---------------------------------------------------------------------------
diff --git a/src/glsl/Makefile.am b/src/glsl/Makefile.am
index 2b9ca2c..d86153c 100644
--- a/src/glsl/Makefile.am
+++ b/src/glsl/Makefile.am
@@ -37,7 +37,6 @@ AM_CFLAGS = \
 
 AM_CXXFLAGS = $(AM_CFLAGS)
 
-AM_YFLAGS = -v -d -p "_mesa_glsl_"
 AM_LFLAGS = --nounistd -o$(LEX_OUTPUT_ROOT).c
 
 GLSL_SRCDIR=$(top_srcdir)/src/glsl
@@ -49,7 +48,7 @@ noinst_PROGRAMS = glsl_compiler glsl_test builtin_compiler
 # common sources for builtin_compiler and libglsl
 libglslcommon_la_SOURCES = \
 	glsl_lexer.ll \
-	glsl_parser.yy \
+	glsl_parser.cc \
 	$(LIBGLSL_FILES) \
 	$(LIBGLSL_CXX_FILES)
 
@@ -87,8 +86,15 @@ builtin_compiler_SOURCES = \
 
 builtin_compiler_LDADD = libglslcommon.la
 
-BUILT_SOURCES = glsl_lexer.cc glsl_parser.cc glsl_parser.h builtin_function.cpp
-CLEANFILES = $(BUILT_SOURCES)
+# automake <=1.11 and automake >=1.12 have different conventions for naming C++ header files
+# made by yacc.  To work with both, we write our own rule rather than using automake's.
+# When (if) we require automake >=1.12 in configure.ac, this can be removed, and we can use
+# the automake rule.
+glsl_parser.cc glsl_parser.h: glsl_parser.yy
+	$(AM_V_GEN) $(YACC) -v -o glsl_parser.cc -p "_mesa_glsl_" --defines=glsl_parser.h $<
+
+BUILT_SOURCES = glsl_parser.h builtin_function.cpp
+CLEANFILES = glsl_lexer.cc glsl_parser.cc $(BUILT_SOURCES)
 
 builtin_function.cpp: builtins/profiles/* builtins/ir/* builtins/glsl/* builtins/tools/generate_builtins.py builtins/tools/texture_builtins.py builtin_compiler$(EXEEXT)
 	$(AM_V_GEN) $(PYTHON2) $(PYTHON_FLAGS) builtins/tools/generate_builtins.py ./builtin_compiler > builtin_function.cpp || rm -f builtin_function.cpp