termux-packages/packages/libandroid-support/build.sh

TERMUX_PKG_HOMEPAGE=https://developer.android.com/tools/sdk/ndk/index.html
TERMUX_PKG_DESCRIPTION="Library extending the Android C library (Bionic) for additional multibyte, locale and math support"
# Increase last digit each time a patch changes.
TERMUX_PKG_VERSION=${TERMUX_NDK_VERSION}.4
TERMUX_PKG_BUILD_IN_SRC=yes
TERMUX_PKG_ESSENTIAL=yes

termux_step_post_extract_package () {
        cd $TERMUX_PKG_SRCDIR
	if [ "$TERMUX_ARCH_BITS" = "64" ]; then
		# https://android.googlesource.com/platform/ndk.git/+/7c811775212f8ae0ecdcf60d05fefb1582207038
		# For 64-bit bionic has almost everything except the following:
		mkdir -p src/musl-locale/ src/musl-multibyte/ include/
		cp $NDK/sources/android/support/src/musl-multibyte/mblen.c src/musl-multibyte/
		cp $NDK/sources/android/support/src/musl-locale/{catclose.c,catgets.c,catopen.c} src/musl-locale/
		cp $NDK/sources/android/support/include/* include/
	else
		cp -Rf $NDK/sources/android/support/* .
		# See Android.mk for files not to build:
		rm      src/musl-stdio/vwscanf.c \
			src/musl-stdio/wscanf.c \
			src/musl-locale/newlocale.c \
			src/musl-locale/nl_langinfo_l.c \
			src/musl-locale/strcoll_l.c \
			src/musl-locale/strxfrm_l.c \
			src/musl-locale/wcscoll_l.c \
			src/musl-locale/wcsxfrm_l.c \
			src/locale/uselocale.c
	fi
}

termux_step_make_install () {
	if [ "$TERMUX_ARCH_BITS" = "64" ]; then
		_C_FILES="src/musl-*/*.c"
	else
		_C_FILES="src/locale/*.c src/musl-*/*.c src/stdio/*.c src/*.c"
	fi
	# Link against libm to avoid linkers having to do it
        $CC $CFLAGS -std=c99 -DNULL=0 $CPPFLAGS $LDFLAGS -lm \
                -Iinclude -Isrc/locale \
		$_C_FILES \
                -shared -fpic \
                -o libandroid-support.so

        cp libandroid-support.so $TERMUX_PREFIX/lib/

        (cd $TERMUX_PREFIX/lib; rm -f libiconv.so libintl.so; ln -s libandroid-support.so libiconv.so; ln -s libandroid-support.so libintl.so)

	rm -Rf $TERMUX_PREFIX/include/libandroid-support
	mkdir -p $TERMUX_PREFIX/include/libandroid-support
	cp -Rf include/* $TERMUX_PREFIX/include/libandroid-support/

        (cd $TERMUX_PREFIX/include; rm -f libintl.h iconv.h; ln -s libandroid-support/libintl.h libintl.h; ln -s libandroid-support/iconv.h iconv.h)
}