i'm unable to build it both on archlinux and manjaro:

../../gdb/completer.c: In function ‘char gdb_completion_word_break_characters_throw()’: ../../gdb/completer.c:1853:10: error: invalid conversion from ‘const char’ to ‘char’ [-fpermissive] 1853 | return rl_completer_word_break_characters; | ^~ | | | const char make[2]: *** [Makefile:1637: completer.o] Error 1

Updated PKGBUILD:

pkgname=cross-mingw-w64-gdb
pkgver=12.1
pkgrel=1
pkgdesc="The GNU Debugger (compiled to debug target mingw-w64)"
arch=('i686' 'x86_64')
url="http://www.gnu.org/software/gdb/"
license=('LGPL')
depends=('ncurses' 'expat' 'xz' 'readline' 'source-highlight')
makedepends=('gcc' 'texinfo')
options=('staticlibs' '!buildflags')
source=("http://ftp.gnu.org/gnu/gdb/gdb-${pkgver}.tar.xz"
        "const_char.patch")
sha256sums=('0e1793bf8f2b54d53f46dea84ccfd446f48f81b297b28c4f7fc017b818d69fed'
            'b227d9a5a60c9f67146191d0d4b8feb6f82337ff73046637f48bd8ed2f1d3f8a')

_architectures="i686-w64-mingw32 x86_64-w64-mingw32"

prepare() {
    patch --directory "gdb-$pkgver" --forward --strip=0 --input="${srcdir}/const_char.patch"
}

build() {
  cd "$srcdir/gdb-$pkgver"
  for _arch in ${_architectures}; do
    unset LDFLAGS
    mkdir -p build-${_arch} && pushd build-${_arch}
    ../configure --prefix=/usr \
                 --target=${_arch} \
                 --enable-lto \
                 --disable-nls \
                 --with-system-readline \
                 --with-expat
    make
    popd
  done
}

package() {
  for _arch in ${_architectures}; do
    cd "$srcdir"/gdb-${pkgver}/build-${_arch}
    make install DESTDIR="$pkgdir"
    rm -rf "$pkgdir"/usr/share/{info,locale,gdb}
    rm -f  "$pkgdir"/usr/share/man/man1/*-w64-mingw32-gdbserver.1*
    rm -rf "$pkgdir"/usr/share/man/man5
    rm -rf "$pkgdir"/usr/lib
    rm -rf "$pkgdir"/usr/include
  done
}

# vim: set expandtab tabstop=4 :

and const_char.patch

--- gdb/completer.c 2022-05-01 20:46:31.000000000 +0200
+++ gdb/completer.c 2023-01-20 01:45:12.953677480 +0100
@@ -2011,7 +2011,7 @@
       rl_basic_quote_characters = NULL;
     }

-  return rl_completer_word_break_characters;
+  return (char*) rl_completer_word_break_characters;
 }

 char *

For further details see also https://github.com/archlinux/svntogit-packages/tree/packages/gdb/trunk.

Hello,

How to use this package ?

$ x86_64-w64-mingw32-gdb

GNU gdb (GDB) 8.1.1

...

(gdb) run ./foo.exe

Don't know how to run. Try "help target".