new package: dosemu2

Run DOS programs under linux.

Closes #1146
Closes termux/termux-packages#1605

tur/dosemu2/build.sh

@@ -0,0 +1,17 @@
+TERMUX_PKG_HOMEPAGE=https://github.com/dosemu2/dosemu2
+TERMUX_PKG_DESCRIPTION="Run DOS programs under linux."
+TERMUX_PKG_LICENSE="GPL-2.0"
+TERMUX_PKG_MAINTAINER="@stsp"
+TERMUX_PKG_VERSION="2.0pre9-git"
+TERMUX_PKG_SRCURL=git+https://github.com/dosemu2/dosemu2.git
+TERMUX_PKG_GIT_BRANCH=devel
+TERMUX_PKG_AUTO_UPDATE=true
+TERMUX_PKG_BUILD_DEPENDS="libandroid-posix-semaphore, libandroid-glob, slang, libao, fluidsynth, ladspa-sdk, libslirp, libbsd, readline, json-c, libseccomp, libsearpc, fdpp, dj64dev"
+TERMUX_PKG_DEPENDS="fdpp, dj64dev, comcom64"
+# LTO breaks on i386 build
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--disable-lto"
+
+termux_step_pre_configure() {
+	cd $TERMUX_PKG_SRCDIR
+	./autogen.sh
+}