php: enable extensions 'gmp' and 'intl'

See https://github.com/termux/termux-packages/issues/3983#issuecomment-538136712
and https://github.com/termux/termux-packages/issues/2173.

packages/php/build.sh

@@ -2,14 +2,14 @@ TERMUX_PKG_HOMEPAGE=https://php.net
 TERMUX_PKG_DESCRIPTION="Server-side, HTML-embedded scripting language"
 TERMUX_PKG_LICENSE="PHP-3.0"
 TERMUX_PKG_VERSION=7.4.1
-TERMUX_PKG_REVISION=4
+TERMUX_PKG_REVISION=5
 TERMUX_PKG_SRCURL=https://secure.php.net/distributions/php-${TERMUX_PKG_VERSION}.tar.xz
 TERMUX_PKG_SHA256=561bb866bdd509094be00f4ece7c3543ec971c4d878645ee81437e291cffc762
 # Build native php for phar to build (see pear-Makefile.frag.patch):
 TERMUX_PKG_HOSTBUILD=true
 # Build the native php without xml support as we only need phar:
 TERMUX_PKG_EXTRA_HOSTBUILD_CONFIGURE_ARGS="--disable-libxml --disable-dom --disable-simplexml --disable-xml --disable-xmlreader --disable-xmlwriter --without-pear --disable-sqlite3 --without-libxml --without-sqlite3 --without-pdo-sqlite"
-TERMUX_PKG_DEPENDS="freetype, libandroid-glob, libandroid-support, libbz2, libcrypt, libcurl, libgd, libiconv, liblzma, libsqlite, libxml2, libxslt, libzip, oniguruma, openssl, pcre2, readline, zlib"
+TERMUX_PKG_DEPENDS="freetype, libandroid-glob, libandroid-support, libbz2, libcrypt, libcurl, libgd, libgmp, libiconv, liblzma, libsqlite, libxml2, libxslt, libzip, oniguruma, openssl, pcre2, readline, zlib"
 TERMUX_PKG_CONFLICTS="php-mysql, php-dev"
 TERMUX_PKG_REPLACES="php-mysql, php-dev"
 TERMUX_PKG_RM_AFTER_INSTALL="php/php/fpm"
@@ -43,6 +43,8 @@ ac_cv_func_res_nsearch=no
 --with-external-pcre
 --with-zip
 --with-xsl
+--with-gmp
+--enable-intl
 --sbindir=$TERMUX_PREFIX/bin
 "