tcc: re-enable correct option -r support

Forgot about it.  It allows to compile several
sources (and other .o's) to one single .o file;

    tcc -r -o all.o f1.c f2.c f3.S o4.o ...

Also:
- option -fold-struct-init-code removed, no effect anymore
- (tcc_)set_environment() moved to tcc.c
- win32/lib/(win)crt1 minor fix & add dependency
- debug line output for asm (tcc -c -g xxx.S) enabled
- configure/Makefiles: x86-64 -> x86_64 changes
- README: cleanup

win32/Makefile

@@ -24,11 +24,9 @@ TARGET	= $(CPU)
 ifeq ($(TARGET), 64)
 TFLAGS	= -m$(TARGET) -DTCC_TARGET_X86_64
 TARCH	= x86_64
-CARCH	= x86-64
 else
 TFLAGS	= -m$(TARGET) -DTCC_TARGET_I386
 TARCH	= i386
-CARCH	= i386
 endif
 
 all: pre bootstrap libs rebuild
@@ -36,7 +34,7 @@ all: pre bootstrap libs rebuild
 	@ls -ls *.exe
 
 pre:
-	@echo ARCH=$(CARCH) 1> ../config.mak
+	@echo ARCH=$(TARCH) 1> ../config.mak
 	@echo TARGETOS=Windows  1>> ../config.mak
 	@echo CONFIG_WIN32=yes 1>> ../config.mak
 	@echo TOPSRC=$$\(TOP\) 1>> ../config.mak

win32/include/_mingw.h

@@ -139,6 +139,18 @@ typedef struct localeinfo_struct _locale_tstruct,*_locale_t;
 #define NOSERVICE 1
 #define NOMCX 1
 #define NOIME 1
+#define __INTRIN_H_
+#ifndef DUMMYUNIONNAME
+#  define DUMMYUNIONNAME
+#  define DUMMYUNIONNAME1
+#  define DUMMYUNIONNAME2
+#  define DUMMYUNIONNAME3
+#  define DUMMYUNIONNAME4
+#  define DUMMYUNIONNAME5
+#endif
+#ifndef DUMMYSTRUCTNAME
+#  define DUMMYSTRUCTNAME
+#endif
 #ifndef WINVER
 # define WINVER 0x0502
 #endif

win32/lib/crt1.c

@@ -73,15 +73,18 @@ int _runtmain(int argc, /* as tcc passed in */ char **argv)
     _startupinfo start_info = {0};
 
     __tgetmainargs(&wargc, &wargv, &wenv, _dowildcard, &start_info);
+    /* may be wrong when tcc has received wildcards (*.c) */
     if (argc < wargc)
         wargv += wargc - argc;
+    else
+        argc = wargc;
 #define argv wargv
 #endif
 
 #ifdef __i386
     _controlfp(_PC_53, _MCW_PC);
 #endif
-    return _tmain(argc, argv, NULL);
+    return _tmain(argc, argv, _tenviron);
 }
 
 // =============================================

win32/lib/user32.def

@@ -336,6 +336,10 @@ GetWindow
 GetWindowContextHelpId
 GetWindowDC
 GetWindowInfo
+GetWindowLongPtrA
+GetWindowLongPtrW
+SetWindowLongPtrA
+SetWindowLongPtrW
 GetWindowLongA
 GetWindowLongW
 GetWindowModuleFileNameA

win32/lib/wincrt1.c

@@ -80,6 +80,8 @@ int _runtwinmain(int argc, /* as tcc passed in */ char **argv)
     __tgetmainargs(&wargc, &wargv, &wenv, 0, &start_info);
     if (argc < wargc)
         wargv += wargc - argc;
+    else
+        argc = wargc;
 #define argv wargv
 #endif