various stuff

win32/Makefile ("for cygwin") removed
- On cygwin, the normal ./configure && make can be used with either
  cygwin's "GCC for Win32 Toolchain"
      ./configure --cross-prefix=i686-w64-mingw32-
  or with an existing tcc:
      ./configure --cc=<old-tccdir>/tcc.exe

tcctest.c:
- exclude test_high_clobbers() on _WIN64 (does not work)

tests2/95_bitfield.c:
- use 'signed char' for ARM (where default 'char' is unsigned)

tests:
- remove -I "expr" diff option to allow tests with
  busybox-diff.

libtcc.c, tcc.c:
- removed -iwithprefix option.  It is supposed to be
  combined with -iprefix which we don't have either.

tccgen.c:
- fix assignments and return of 'void', as in
     void f() {
         void *p, *q;
         *p = *q:
         return *p;
     }
  This appears to be allowed but should do nothing.

tcc.h, libtcc.c, tccpp.c:
- Revert "Introduce VIP sysinclude paths which are always searched first"
  This reverts commit 1d5e386b0a78393ac6b670c209a185849ec798a1.

  The patch was giving tcc's system includes priority over -I which
  is not how it should be.

tccelf.c:
- add DT_TEXTREL tag only if text relocations are actually
  used (which is likely not the case on x86_64)
- prepare_dynamic_rel(): avoid relocation of unresolved
  (weak) symbols

tccrun.c:
- for HAVE_SELINUX, use two mappings to the same (real) file.
  (it was so once except the RX mapping wasn't used at all).

tccpe.c:
- fix relocation constant used for x86_64 (by Andrei E. Warentin)
- #ifndef _WIN32 do "chmod 755 ..." to get runnable exes on cygwin.

tccasm.c:
- keep forward asm labels static, otherwise they will endup
  in dynsym eventually.

configure, Makefile:
- mingw32: respect ./configure options --bindir --docdir --libdir
- allow overriding tcc when building libtcc1.a and libtcc.def with
      make XTCC=<tcc program to use>
- use $(wildcard ...) for install to allow installing just
  a cross compiler for example
      make cross-arm
      make install
- use name <target>-libtcc1.a

build-tcc.bat:
- add  options: -clean, -b bindir

1 files changed, 3 insertions, 4 deletions

diff --git a/tests/tcctest.c b/tests/tcctest.c
index 7877243..099fc35 100644
--- a/tests/tcctest.c
+++ b/tests/tcctest.c
@@ -3235,6 +3235,7 @@ void asm_local_statics (void)
 }
 #endif
 
+static
 unsigned int set;
 
 void fancy_copy (unsigned *in, unsigned *out)
@@ -3247,7 +3248,7 @@ void fancy_copy2 (unsigned *in, unsigned *out)
   asm volatile ("mov %0,(%1)" : : "r" (*in), "r" (out) : "memory");
 }
 
-#ifdef __x86_64__
+#if defined __x86_64__ && !defined _WIN64
 void clobber_r12(void)
 {
     asm volatile("mov $1, %%r12" ::: "r12");
@@ -3256,7 +3257,7 @@ void clobber_r12(void)
 
 void test_high_clobbers(void)
 {
-#ifdef __x86_64__
+#if defined __x86_64__ && !defined _WIN64
     register long val asm("r12");
     long val2;
     /* This tests if asm clobbers correctly save/restore callee saved
@@ -3265,11 +3266,9 @@ void test_high_clobbers(void)
        correctly capture the data flow, but good enough for us.  */
     asm volatile("mov $0x4542, %%r12" : "=r" (val):: "memory");
     clobber_r12();
-#ifndef _WIN64
     asm volatile("mov %%r12, %0" : "=r" (val2) : "r" (val): "memory");
     printf("asmhc: 0x%x\n", val2);
 #endif
-#endif
 }
 
 static long cpu_number;