Use mmap(2) emulation for buffer text on MS-Windows.

 src/Makefile.in (C_HEAP_SWITCH): Get the predefined heap size from
 configure.
 (ADDSECTION, MINGW_TEMACS_POST_LINK): Remove, no longer used.
 src/lisp.h (NONPOINTER_BITS): Modify the condition to define to zero
 for MinGW, since it no longer uses gmalloc.
 src/buffer.c: Do not define mmap allocations functions for Windows.
 Remove mmap_find which is unused. Remove mmap_set_vars which does
 nothing useful.
 [WINDOWSNT]: Include w32heap.h.
 (init_buffer): Always allocate new memory for buffers.
 src/emacs.c: Remove mmap_set_vars calls.
 src/image.c (free_image): Undef free for Windows because it is
 redirected to our private version.
 src/unexw32.c (COPY_PROC_CHUNK): Use %p format for 64bits
 compatibility.
 (copy_executable_and_dump_data): Remove dumping the heap section.
 (unexec): Restore using_dynamic_heap after dumping.
 src/w32heap.c (dumped_data_commit, malloc_after_dump)
 (malloc_before_dump, realloc_after_dump, realloc_before_dump)
 (free_after_dump, free_before_dump, mmap_alloc, mmap_realloc)
 (mmap_free): New functions.
 src/w32heap.h: Declare dumped_data and mmap_* function prototypes.

 nt/inc/ms-w32.h: Switch to the system heap allocation scheme
 instead of GNU malloc and ralloc.
 nt/inc/sys/mman.h: New file.
 nt/INSTALL: Update for the new build requirements.

 etc/NEWS: Mention build changes on MS-Windows.

 configure.ac (C_HEAP_SWITCH) define for different values of
 dumped heap size depending on 32/64bits arch on Windows.
 Don't check for pthreads.h on MinGW32/64, it gets in the way.
 Use mmap(2) for buffers and system malloc for MinGW32/64.

1 files changed, 13 insertions, 8 deletions

diff --git a/nt/INSTALL b/nt/INSTALL
index 949a4e452cf..4ecf4da3181 100644
--- a/nt/INSTALL
+++ b/nt/INSTALL
@@ -5,9 +5,9 @@
   See the end of the file for license conditions.
 
 The MSYS/MinGW build described here is supported on versions of
-Windows starting with Windows 2000 and newer.  Windows 9X are not
-supported (but the Emacs binary produced by this build will run on
-Windows 9X as well).
+Windows starting with Windows XP and newer.  Building on Windows 2000
+and Windows 9X is not supported (but the Emacs binary produced by this
+build will run on Windows 9X and newer systems).
 
   Do not use this recipe with Cygwin.  For building on Cygwin, use the
   normal installation instructions, ../INSTALL.
@@ -389,9 +389,10 @@ Windows 9X as well).
 
        Where should the build process find the source code?    /path/to/emacs/sources
        What compiler should emacs be built with?               gcc  -std=gnu99 -O0 -g3
-       Should Emacs use the GNU version of malloc?             yes
-       Should Emacs use a relocating allocator for buffers?    yes
-       Should Emacs use mmap(2) for buffer allocation?         no
+       Should Emacs use the GNU version of malloc?             no
+	 (The GNU allocators don't work with this system configuration.)
+       Should Emacs use a relocating allocator for buffers?    no
+       Should Emacs use mmap(2) for buffer allocation?         yes
        What window system should Emacs use?                    w32
        What toolkit should Emacs use?                          none
        Where do we find X Windows header files?                NONE
@@ -401,13 +402,16 @@ Windows 9X as well).
        Does Emacs use -ljpeg?                                  yes
        Does Emacs use -ltiff?                                  yes
        Does Emacs use a gif library?                           yes
-       Does Emacs use -lpng?                                   yes
-       Does Emacs use -lrsvg-2?                                no
+       Does Emacs use a png library?                           yes
+       Does Emacs use -lrsvg-2?                                yes
        Does Emacs use imagemagick?                             no
+       Does Emacs support sound?                               no
        Does Emacs use -lgpm?                                   no
        Does Emacs use -ldbus?                                  no
        Does Emacs use -lgconf?                                 no
        Does Emacs use GSettings?                               no
+       Does Emacs use a file notification library?             yes (w32)
+       Does Emacs use access control lists?                    yes
        Does Emacs use -lselinux?                               no
        Does Emacs use -lgnutls?                                yes
        Does Emacs use -lxml2?                                  yes
@@ -415,6 +419,7 @@ Windows 9X as well).
        Does Emacs use -lm17n-flt?                              no
        Does Emacs use -lotf?                                   no
        Does Emacs use -lxft?                                   no
+       Does Emacs directly use zlib?                           yes
        Does Emacs use toolkit scroll bars?                     yes
 
   You are almost there, hang on.