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, 2 insertions, 3 deletions

diff --git a/tcc.c b/tcc.c
index 53ee84e..c347a06 100644
--- a/tcc.c
+++ b/tcc.c
@@ -86,7 +86,6 @@ static const char help2[] =
     "  -Wp,-opt                      same as -opt\n"
     "  -include file                 include 'file' above each input file\n"
     "  -isystem dir                  add 'dir' to system include path\n"
-    "  -iwithprefix dir              set tcc's private include/library subdir\n"
     "  -static                       link to static libraries (not recommended)\n"
     "  -dumpversion                  print version\n"
     "  -print-search-dirs            print search paths\n"
@@ -181,7 +180,6 @@ static void print_search_dirs(TCCState *s)
 {
     printf("install: %s\n", s->tcc_lib_path);
     /* print_dirs("programs", NULL, 0); */
-    print_dirs("tcc-include", s->tccinclude_paths, s->nb_tccinclude_paths);
     print_dirs("include", s->sysinclude_paths, s->nb_sysinclude_paths);
     print_dirs("libraries", s->library_paths, s->nb_library_paths);
 #ifndef TCC_TARGET_PE
@@ -197,7 +195,7 @@ static void set_environment(TCCState *s)
 
     path = getenv("C_INCLUDE_PATH");
     if(path != NULL) {
-        tcc_add_include_path(s, path);
+        tcc_add_sysinclude_path(s, path);
     }
     path = getenv("CPATH");
     if(path != NULL) {
@@ -278,6 +276,7 @@ redo:
             return 0;
         if (opt == OPT_PRINT_DIRS) {
             /* initialize search dirs */
+            set_environment(s);
             tcc_set_output_type(s, TCC_OUTPUT_MEMORY);
             print_search_dirs(s);
             return 0;