new package: autoconf213

Closes https://github.com/termux/termux-packages/issues/5640.

packages/autoconf213/build.sh

@@ -0,0 +1,18 @@
+TERMUX_PKG_HOMEPAGE=https://www.gnu.org/software/autoconf/autoconf.html
+TERMUX_PKG_DESCRIPTION="Creator of shell scripts to configure source code packages (legacy v2.13)"
+TERMUX_PKG_LICENSE="GPL-3.0"
+TERMUX_PKG_VERSION=2.13
+TERMUX_PKG_SRCURL=http://ftp.gnu.org/gnu/autoconf/autoconf-${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=f0611136bee505811e9ca11ca7ac188ef5323a8e2ef19cffd3edb3cf08fd791e
+TERMUX_PKG_DEPENDS="m4, make, perl"
+TERMUX_PKG_PLATFORM_INDEPENDENT=true
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--program-suffix=-2.13"
+
+termux_step_post_get_source() {
+	perl -p -i -e "s|/bin/sh|$TERMUX_PREFIX/bin/sh|" *.m4
+}
+
+termux_step_post_massage() {
+	perl -p -i -e "s|/usr/bin/m4|$TERMUX_PREFIX/bin/m4|" $TERMUX_PKG_MASSAGEDIR/$TERMUX_PREFIX/bin/*
+	perl -p -i -e "s|CONFIG_SHELL-/bin/sh|CONFIG_SHELL-$TERMUX_PREFIX/bin/sh|" $TERMUX_PKG_MASSAGEDIR/$TERMUX_PREFIX/bin/autoconf-2.13
+}

packages/autoconf213/tmpdir.patch

@@ -0,0 +1,12 @@
+diff -uNr autoconf-2.13/acspecific.m4 autoconf-2.13.mod/acspecific.m4
+--- autoconf-2.13/acspecific.m4	1999-01-05 13:27:52.000000000 +0000
++++ autoconf-2.13.mod/acspecific.m4	2020-11-05 19:58:31.094308943 +0000
+@@ -2248,7 +2248,7 @@
+ if test -n "$TMPDIR" && test -d "$TMPDIR" && test -w "$TMPDIR"; then
+   ac_tmpdirs="$TMPDIR"
+ else
+-  ac_tmpdirs='/tmp /var/tmp /usr/tmp'
++  ac_tmpdirs='@TERMUX_PREFIX@/tmp'
+ fi
+ for ac_dir in  . $ac_tmpdirs `eval echo $prefix/lib $exec_prefix/lib` ; do
+   test -d $ac_dir || continue