libucontext: respect DESTDIR and PREFIX

Build out of source and avoid overriding termux_step_configure().

packages/libucontext/Makefile.patch

@@ -1,14 +1,16 @@
---- a/Makefile
-+++ b/Makefile
-@@ -15,9 +15,9 @@
+--- ../libucontext-libucontext-1.1/Makefile	2021-03-09 07:46:31.000000000 +0000
++++ ./Makefile	2022-02-11 13:33:41.720671627 +0000
+@@ -14,10 +14,10 @@
+ 	override ARCH = arm
  endif
  
- LIBDIR := /lib
+-LIBDIR := /lib
 -INCLUDEDIR := /usr/include
 -PKGCONFIGDIR := /usr/lib/pkgconfig
 -CFLAGS := -ggdb3 -O2 -Wall
-+INCLUDEDIR := /include
-+PKGCONFIGDIR := /lib/pkgconfig
++LIBDIR := $(PREFIX)/lib
++INCLUDEDIR := $(PREFIX)/include
++PKGCONFIGDIR := $(PREFIX)/lib/pkgconfig
 +CFLAGS ?= -ggdb3 -O2 -Wall
  CPPFLAGS := -Iinclude -Iarch/${ARCH} -Iarch/common
  EXPORT_UNPREFIXED := yes

packages/libucontext/build.sh

@@ -3,15 +3,7 @@ TERMUX_PKG_DESCRIPTION="A library which provides the ucontext.h C API"
 TERMUX_PKG_LICENSE="ISC"
 TERMUX_PKG_MAINTAINER="@termux"
 TERMUX_PKG_VERSION=1.1
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SRCURL=https://github.com/kaniini/libucontext/archive/refs/tags/libucontext-${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_SHA256=298201cef024aee29dfb81c3f1ef800047d5c799297651a60e2c53bb76956ea6
-TERMUX_PKG_BUILD_IN_SRC=true
-TERMUX_PKG_EXTRA_MAKE_ARGS="DESTDIR=$TERMUX_PREFIX"
-
-termux_step_pre_configure() {
-	TERMUX_PKG_EXTRA_MAKE_ARGS+=" ARCH=$TERMUX_ARCH"
-}
-
-termux_step_configure() {
-	:
-}
+TERMUX_PKG_EXTRA_MAKE_ARGS="ARCH=$TERMUX_ARCH"