--- configure	2022-01-22 01:11:01.000000000 +0100
+++ configure	2023-08-20 17:51:18.537172800 +0200
@@ -9,6 +9,7 @@
 pkgversion=1.23
 progname=lzip
 srctrigger=doc/${pkgname}.texi
+extension=
 
 # clear some things potentially inherited from environment.
 LC_ALL=C
@@ -23,7 +24,7 @@
 build=no
 check=no
 installdir=
-CXX=g++
+CXX="${CXX:-g++}"
 CPPFLAGS=
 CXXFLAGS='-Wall -W -O2'
 LDFLAGS=
@@ -125,6 +126,19 @@
 	fi
 done
 
+rm -f dummy*
+cat << EOT > dummy.c
+int main(int argc, char ** argv) {
+    return 0;
+}
+EOT
+
+${CXX} -o dummy dummy.c
+
+if [ -f dummy.exe ] ; then
+  extension=".exe"
+fi
+
 # Find the source files, if location was not specified.
 srcdirtext=
 if [ -z "${srcdir}" ] ; then
@@ -161,9 +175,9 @@
     "${srcdir}/testsuite/check.sh" "${srcdir}/testsuite" ${pkgversion} || exit 1
   fi
   if [ -n "${installdir}" ] ; then
-    echo "installing ${progname} in ${installdir}"
+    echo "installing ${progname}${extension} in ${installdir}"
     [ -d "${installdir}" ] || mkdir -p "${installdir}" || exit 1
-    cp -fp ${progname} "${installdir}/${progname}" || exit 1
+    cp -fp "${progname}${extension}" "${installdir}/${progname}${extension}" || exit 1
   fi
   exit 0
 fi
@@ -188,6 +202,7 @@
 echo "creating Makefile"
 echo "VPATH = ${srcdir}"
 echo "prefix = ${prefix}"
+echo "executable extension = ${extension}"
 echo "exec_prefix = ${exec_prefix}"
 echo "bindir = ${bindir}"
 echo "datarootdir = ${datarootdir}"
@@ -209,6 +224,7 @@
 pkgname = ${pkgname}
 pkgversion = ${pkgversion}
 progname = ${progname}
+extension = ${extension}
 VPATH = ${srcdir}
 prefix = ${prefix}
 exec_prefix = ${exec_prefix}
--- Makefile.in	2021-10-07 01:01:07.000000000 +0200
+++ Makefile.in	2023-08-20 17:18:35.382705100 +0200
@@ -64,7 +64,7 @@
 
 install-bin : all
 	if [ ! -d "$(DESTDIR)$(bindir)" ] ; then $(INSTALL_DIR) "$(DESTDIR)$(bindir)" ; fi
-	$(INSTALL_PROGRAM) ./$(progname) "$(DESTDIR)$(bindir)/$(progname)"
+	$(INSTALL_PROGRAM) ./$(progname)$(extension) "$(DESTDIR)$(bindir)/$(progname)$(extension)"
 
 install-bin-strip : all
 	$(MAKE) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' install-bin