GNU screen for MSYS2 and git-for-windows

PKGBUILD

pkgname=screen
pkgver=4.9.1
pkgrel=1
pkgdesc='A terminal multiplexer'
url='https://www.gnu.org/software/screen/'
msys2_repository_url="http://ftp.gnu.org/gnu/screen/"
msys2_references=(
  "cpe: cpe:/a:gnu:screen"
)
arch=('i686' 'x86_64')
license=('GPL')
#depends=('ncurses')
makedepends=('autotools' 'gcc')
source=("https://ftp.gnu.org/gnu/screen/${pkgname}-${pkgver}.tar.gz"{,.sig}
       'screen-4.9.1-msys2.patch')
noextract=('screen-4.9.1.tar.gz')
sha256sums=('26cef3e3c42571c0d484ad6faf110c5c15091fbf872b06fa7aa4766c7405ac69'
            'SKIP'
            '2af248b8611adb08d0096d229b48dd67dfc336ebe3384ba104e662e376251273')
validpgpkeys=('50B861B3E930EC33750D90ED910832974A92A11C')
# to be used for git-for-windows too
prefix=/c/opt/screen

prepare() {
  MSYS=winsymlinks:lnk tar zxf "${srcdir}/${pkgname}-${pkgver}.tar.gz"
  cd "${srcdir}/${pkgname}-${pkgver}"

  patch --forward --strip=1 --input="${srcdir}/screen-4.9.1-msys2.patch"
}

build() {
  cd "${srcdir}/${pkgname}-${pkgver}"

  ./configure \
    --build=${CHOST} \
    --prefix=${prefix} \
    --enable-colors256
  make
}

package() {
  cd "${srcdir}/${pkgname}-${pkgver}"
  make DESTDIR="${pkgdir}" install
}

screen-4.9.1-1-x86_64.pkg.tar.zst

screen-4.9.1-msys2.patch

diff -urp ../orig/screen-4.9.1/logfile.c ./logfile.c
--- ../orig/screen-4.9.1/logfile.c	2023-08-16 09:29:26.000000000 +0900
+++ ./logfile.c	2026-03-28 15:21:45.018669900 +0900
@@ -85,7 +85,7 @@ static int logfile_reopen(char *name, in
   return 0;
 }
 
-static int (* lf_reopen_fn)() = logfile_reopen;
+static int (* lf_reopen_fn)(char *name, int wantfd, struct logfile *l) = logfile_reopen;
 
 /* 
  * Whenever logfwrite discoveres that it is required to close and
diff -urp ../orig/screen-4.9.1/pty.c ./pty.c
--- ../orig/screen-4.9.1/pty.c	2023-08-16 09:29:26.000000000 +0900
+++ ./pty.c	2026-03-28 15:19:47.033243700 +0900
@@ -256,7 +256,7 @@ OpenPTY(ttyn)
 char **ttyn;
 {
   register int f;
-  char *m, *ptsname();
+  char *m; //, *ptsname();
   int unlockpt __P((int)), grantpt __P((int));
 #if defined(HAVE_GETPT) && defined(linux)
   int getpt __P((void));
diff -urp ../orig/screen-4.9.1/screen.c ./screen.c
--- ../orig/screen-4.9.1/screen.c	2023-08-16 09:29:26.000000000 +0900
+++ ./screen.c	2026-03-29 15:29:40.113591200 +0900
@@ -1114,8 +1114,10 @@ int main(int ac, char** av)
           Panic(0, "Directory '%s' must be owned by root.", SockDir);
         n = (eff_uid == 0 && (real_uid || (st.st_mode & 0775) != 0775)) ? 0755 :
             (eff_gid == (int)st.st_gid && eff_gid != real_gid) ? 0775 : 0777;
+#ifndef __MSYS__
         if (((int)st.st_mode & 0777) != n)
           Panic(0, "Directory '%s' must have mode %03o.", SockDir, n);
+#endif
       }
       sprintf(SockPath, "%s/S-%s", SockDir, LoginName);
       if (access(SockPath, F_OK)) {
@@ -1150,8 +1152,10 @@ int main(int ac, char** av)
 #endif
   }
 
+#ifndef __MSYS__
   if ((st.st_mode & 0777) != 0700)
     Panic(0, "Directory %s must have mode 700.", SockPath);
+#endif
   if (SockMatch && index(SockMatch, '/'))
     Panic(0, "Bad session name '%s'", SockMatch);
   SockName = SockPath + strlen(SockPath) + 1;
diff -urp ../orig/screen-4.9.1/socket.c ./socket.c
--- ../orig/screen-4.9.1/socket.c	2023-08-16 09:29:26.000000000 +0900
+++ ./socket.c	2026-03-28 15:18:48.702165600 +0900
@@ -89,7 +89,7 @@ extern char *multi;
 #endif
 extern int maxwin;
 
-extern char *getenv();
+//extern char *getenv();
 
 extern char SockPath[];
 extern struct event serv_read;
diff -urp ../orig/screen-4.9.1/term.sh ./term.sh
--- ../orig/screen-4.9.1/term.sh	2023-08-16 09:29:26.000000000 +0900
+++ ./term.sh	2026-03-28 15:25:45.911509900 +0900
@@ -7,7 +7,7 @@ if test -z "$srcdir"; then
   srcdir=.
 fi
 
-LC_ALL=C
+LC_ALL=en_US.UTF-8
 export LC_ALL
 
 rm -f term.h