Re: Warnings during building the current master on Win10 with MSYS2/MinGW64

[Angelo Graziosi]

> after a long time, I built Emacs (baf9f1210a) from master on my Win10
> box and it occurred to me that I get more warnings than I used to.  This
> is with

My MSYS2/UCRT64 build of master (20240724_192011) dose not show warnings:

$ grep -i warn emacs-master-u64-x86_64-20240724_192011-release-build.log
ac-wrapper: autoreconf: warning: auto-detected versions not found ( ); 
falling back to latest available
checking whether C compiler handles -Werror -Wunknown-warning-option... no
checking for C compiler option to allow warnings... -Wno-error
  ELC      emacs-lisp/warnings.elc
  ELC      progmodes/cwarn.elc
org.texi:16157: warning: @anchor should not appear on @item line
org.texi:16170: warning: @anchor should not appear on @item line
./emacs-lisp/warnings.el
./emacs-lisp/warnings.elc
./progmodes/cwarn.el
./progmodes/cwarn.elc

Emacs is built with

gcc version 14.1.0 (Rev3, Built by MSYS2 project)


and configured something like this

--------------------------------------
./configure --prefix="/${PREFIXNAME}" \
                --host=x86_64-w64-mingw32 \
                --build=x86_64-w64-mingw32 \
                --without-dbus \
                --without-pop \
                --with-modules \
                --without-native-compilation \
                --enable-checking=no \
                CFLAGS=-O2 -static
--------------------------------------

with the result:

--------------------------------------
Configured for 'x86_64-w64-mingw32'.

  Where should the build process find the source code?    .
  What compiler should emacs be built with? 
x86_64-w64-mingw32-gcc  -O2 -static
  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
  Where do we find X Windows libraries?                   NONE
  Does Emacs use -lXaw3d?                                 no
  Is Emacs being built for Android?                       no
  Does Emacs use the X Double Buffer Extension?           no
  Does Emacs use -lXpm?                                   yes
  Does Emacs use -ljpeg?                                  yes
  Does Emacs use -ltiff?                                  yes
  Does Emacs use a gif library?                           yes
  Does Emacs use a png library?                           yes
  Does Emacs use -lrsvg-2?                                yes
  Does Emacs use -lwebp?                                  yes
  Does Emacs use -lsqlite3?                               yes
  Does Emacs use cairo?                                   no
  Does Emacs use -llcms2?                                 yes
  Does Emacs use imagemagick?                             no
  Does Emacs use native APIs for images?                  yes (w32)
  Does Emacs support sound?                               yes
  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
  Does Emacs use -lfreetype?                              no
  Does Emacs use HarfBuzz?                                yes
  Does Emacs use -lm17n-flt?                              no
  Does Emacs use -lotf?                                   no
  Does Emacs use -lxft?                                   no
  Does Emacs use -lsystemd?                               no
  Does Emacs use -ltree-sitter?                           yes
  Does Emacs use the GMP library?                         yes
  Does Emacs directly use zlib?                           yes
  Does Emacs have dynamic modules support?                yes
  Does Emacs use toolkit scroll bars?                     yes
  Does Emacs support Xwidgets?                            no
  Does Emacs have threading support in lisp?              yes
  Does Emacs support the portable dumper?                 yes
  Does Emacs support legacy unexec dumping?               no
  Which dumping strategy does Emacs use?                  pdumper
  Does Emacs have native lisp compiler?                   no
  Does Emacs use version 2 of the X Input Extension?      no
  Does Emacs generate a smaller-size Japanese dictionary? no
--------------------------------------

Also the build of IGC branch produces the same results: no warnings.


Ciao,
 Angelo.