obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 142 insertions, 0 deletions

diff --git a/gcc/config/i386/cygwin.h b/gcc/config/i386/cygwin.h
new file mode 100644
index 000000000..f8daeecec
--- /dev/null
+++ b/gcc/config/i386/cygwin.h
@@ -0,0 +1,142 @@
+/* Operating system specific defines to be used when targeting GCC for
+   hosting on Windows32, using a Unix style C library and tools.
+   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+   2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#define TARGET_VERSION fprintf (stderr, " (x86 Cygwin)");
+
+#define EXTRA_OS_CPP_BUILTINS()  /* Nothing.  */
+
+#undef CPP_SPEC
+#define CPP_SPEC "%(cpp_cpu) %{posix:-D_POSIX_SOURCE} \
+  -D__CYGWIN32__ -D__CYGWIN__ %{!ansi:-Dunix} -D__unix__ -D__unix \
+  %{mwin32:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ %{!ansi:-DWINNT}} \
+  %{!nostdinc:%{!mno-win32:-idirafter ../include/w32api%s -idirafter ../../include/w32api%s}}\
+"
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC "\
+  %{!shared: %{!mdll: crt0%O%s \
+  %{pg:gcrt0%O%s}}}\
+  crtbegin.o%s"
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC \
+  "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}\
+   crtend.o%s"
+
+/* Normally, -lgcc is not needed since everything in it is in the DLL, but we
+   want to allow things to be added to it when installing new versions of
+   GCC without making a new CYGWIN.DLL, so we leave it.  Profiling is handled
+   by calling the init function from main.  */
+
+#ifdef ENABLE_SHARED_LIBGCC
+#define SHARED_LIBGCC_SPEC " \
+ %{static|static-libgcc:-lgcc -lgcc_eh} \
+ %{!static: \
+   %{!static-libgcc: \
+     %{!shared: \
+       %{!shared-libgcc:-lgcc -lgcc_eh} \
+       %{shared-libgcc:-lgcc_s -lgcc} \
+      } \
+     %{shared:-lgcc_s -lgcc} \
+    } \
+  } "
+#else
+#define SHARED_LIBGCC_SPEC " -lgcc "
+#endif
+
+#undef REAL_LIBGCC_SPEC
+#define REAL_LIBGCC_SPEC SHARED_LIBGCC_SPEC
+
+/* We have to dynamic link to get to the system DLLs.  All of libc, libm and
+   the Unix stuff is in cygwin.dll.  The import library is called
+   'libcygwin.a'.  For Windows applications, include more libraries, but
+   always include kernel32.  We'd like to specific subsystem windows to
+   ld, but that doesn't work just yet.  */
+
+#undef LIB_SPEC
+#define LIB_SPEC "\
+  %{pg:-lgmon} \
+  -lcygwin \
+  %{mwindows:-lgdi32 -lcomdlg32} \
+  -ladvapi32 -lshell32 -luser32 -lkernel32"
+
+/* To implement C++ function replacement we always wrap the cxx
+   malloc-like operators.  See N2800 #17.6.4.6 [replacement.functions] */
+#define CXX_WRAP_SPEC_LIST " \
+  --wrap _Znwj \
+  --wrap _Znaj \
+  --wrap _ZdlPv \
+  --wrap _ZdaPv \
+  --wrap _ZnwjRKSt9nothrow_t \
+  --wrap _ZnajRKSt9nothrow_t \
+  --wrap _ZdlPvRKSt9nothrow_t \
+  --wrap _ZdaPvRKSt9nothrow_t \
+"
+
+#if defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS)
+
+#if USE_CYGWIN_LIBSTDCXX_WRAPPERS
+/* Default on, only explict -mno disables.  */
+#define CXX_WRAP_SPEC_OPT "!mno-use-libstdc-wrappers"
+#else
+/* Default off, only explict -m enables.  */
+#define CXX_WRAP_SPEC_OPT "muse-libstdc-wrappers"
+#endif
+
+#define CXX_WRAP_SPEC "%{" CXX_WRAP_SPEC_OPT ":" CXX_WRAP_SPEC_LIST "}"
+
+#else /* !defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS)  */
+
+#define CXX_WRAP_SPEC ""
+
+#endif /* ?defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) */
+
+#define LINK_SPEC "\
+  %{mwindows:--subsystem windows} \
+  %{mconsole:--subsystem console} \
+  " CXX_WRAP_SPEC " \
+  %{shared: %{mdll: %eshared and mdll are not compatible}} \
+  %{shared: --shared} %{mdll:--dll} \
+  %{static:-Bstatic} %{!static:-Bdynamic} \
+  %{shared|mdll: --enable-auto-image-base -e __cygwin_dll_entry@12} \
+  --dll-search-prefix=cyg -tsaware"
+
+/* Binutils does not handle weak symbols from dlls correctly.  For now,
+   do not use them unnecessarily in gthr-posix.h.  */
+#define GTHREAD_USE_WEAK 0
+
+/* Every program on cygwin links against cygwin1.dll which contains 
+   the pthread routines.  There is no need to explicitly link them
+   and the -pthread flag is not recognized.  */
+#undef GOMP_SELF_SPECS
+#define GOMP_SELF_SPECS ""
+
+/* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */
+#if DWARF2_UNWIND_INFO
+#define LIBGCC_EH_EXTN ""
+#else
+#define LIBGCC_EH_EXTN "-sjlj"
+#endif
+#define LIBGCC_SONAME "cyggcc_s" LIBGCC_EH_EXTN "-1.dll"
+
+/* We should find a way to not have to update this manually.  */
+#define LIBGCJ_SONAME "cyggcj" /*LIBGCC_EH_EXTN*/ "-12.dll"
+