tccpp: fix issues, add tests

* fix some macro expansion issues
* add some pp tests in tests/pp
* improved tcc -E output for better diff'ability
* remove -dD feature (quirky code, exotic feature,
  didn't work well)

Based partially on ideas / researches from PipCet

Some issues remain with VA_ARGS macros (if used in a
rather tricky way).

Also, to keep it simple, the pp doesn't automtically
add any extra spaces to separate tokens which otherwise
would form wrong tokens if re-read from tcc -E output
(such as '+' '=')  GCC does that, other compilers don't.

 * cleanups
  - #line 01 "file" / # 01 "file" processing
  - #pragma comment(lib,"foo")
  - tcc -E: forward some pragmas to output (pack, comment(lib))
  - fix macro parameter list parsing mess from
    a3fc54345949535524d01319e1ca6378b7c2c201
    a715d7143d9d17da17e67fec6af1c01409a71a31
    (some coffee might help, next time ;)
  - introduce TOK_PPSTR - to have character constants as
    written in the file (similar to TOK_PPNUM)
  - allow '\' appear in macros
  - new functions begin/end_macro to:
      - fix switching macro levels during expansion
      - allow unget_tok to unget more than one tok
  - slight speedup by using bitflags in isidnum_table

Also:
  - x86_64.c : fix decl after statements
  - i386-gen,c : fix a vstack leak with VLA on windows
  - configure/Makefile : build on windows (MSYS) was broken
  - tcc_warning: fflush stderr to keep output order (win32)

1 files changed, 10 insertions, 15 deletions

diff --git a/tests/Makefile b/tests/Makefile
index 98ccb1e..270eaa7 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -19,7 +19,7 @@ TESTS = \
  test3 \
  abitest \
  vla_test-run \
- moretests
+ tests2-dir pp-dir
 
 BTESTS = test1b test3b btest
 
@@ -36,7 +36,7 @@ ifneq ($(ARCH),i386)
  TESTS := $(filter-out $(BTESTS),$(TESTS))
 endif
 ifdef CONFIG_WIN32
- TESTS := w32-prep $(filter-out $(BTESTS),$(TESTS))
+ TESTS := $(filter-out $(BTESTS),$(TESTS))
 endif
 ifeq ($(TARGETOS),Darwin)
  TESTS := $(filter-out hello-exe test3 $(BTESTS),$(TESTS))
@@ -60,9 +60,9 @@ ifeq ($(TARGETOS),Darwin)
 endif
 
 # run local version of tcc with local libraries and includes
-TCCFLAGS = -B$(TOP) -I$(TOP) -I$(top_srcdir) -I$(top_srcdir)/include
+TCCFLAGS = -B$(TOP) -I$(TOP) -I$(top_srcdir) -I$(top_srcdir)/include -L$(TOP)
 ifdef CONFIG_WIN32
- TCCFLAGS = -B$(top_srcdir)/win32 -I$(top_srcdir) -I$(top_srcdir)/include -I$(TOP) -L$(TOP)
+ TCCFLAGS = -B$(top_srcdir)/win32 -I$(top_srcdir) -I$(top_srcdir)/include -L$(TOP)
 endif
 XTCCFLAGS = -B$(TOP) -B$(top_srcdir)/win32 -I$(TOP) -I$(top_srcdir) -I$(top_srcdir)/include
 
@@ -97,17 +97,14 @@ hello-run: ../examples/ex1.c
 
 libtest: libtcc_test$(EXESUF) $(LIBTCC1)
 	@echo ------------ $@ ------------
-	./libtcc_test$(EXESUF) lib_path=..
+	./libtcc_test$(EXESUF) $(TCCFLAGS)
 
 libtcc_test$(EXESUF): libtcc_test.c $(top_builddir)/$(LIBTCC)
 	$(CC) -o $@ $^ $(CPPFLAGS) $(CFLAGS) $(NATIVE_DEFINES) $(LIBS) $(LINK_LIBTCC) $(LDFLAGS) -I$(top_srcdir)
 
-moretests:
+%-dir:
 	@echo ------------ $@ ------------
-	$(MAKE) -C tests2
-
-w32-prep:
-	cp ../libtcc1.a ../lib
+	$(MAKE) -k -C $*
 
 # test.ref - generate using cc
 test.ref: tcctest.c
@@ -223,9 +220,8 @@ endif
 
 abitest: $(ABITESTS)
 	@echo ------------ $@ ------------
-	./abitest-cc$(EXESUF) lib_path=.. include="$(top_srcdir)/include"
-	if [ "$(CONFIG_arm_eabi)" != "yes" ]; then \
-		./abitest-tcc$(EXESUF) lib_path=.. include="$(top_srcdir)/include"; fi
+	./abitest-cc$(EXESUF) $(TCCFLAGS)
+	if [ "$(CONFIG_arm_eabi)" != "yes" ]; then ./abitest-tcc$(EXESUF) $(TCCFLAGS); fi
 
 vla_test$(EXESUF): vla_test.c
 	$(TCC) -o $@ $^ $(CPPFLAGS) $(CFLAGS)
@@ -253,5 +249,4 @@ clean:
 	$(MAKE) -C tests2 $@
 	rm -vf *~ *.o *.a *.bin *.i *.ref *.out *.out? *.out?b *.cc \
 		*-cc *-tcc *.exe \
-		hello libtcc_test vla_test tcctest[1234] ex? tcc_g tcclib.h \
-		../lib/libtcc1.a
+		hello libtcc_test vla_test tcctest[1234] ex? tcc_g