Persist the pear/install-pear-nozlib.phar file

Rather than downloading it as part of the `makedist` script, add the script to
the project's version control. The installation instructions are updated to
indicate that the needed phar script is always present, and the only thing
needed is to become the superuser and run `make install-pear`.

The phar is currently marked as binary in the git attributes since it is not
entirely text, it is committed as-is from the pear server and can be cleaned up
in future commits.

This also fixes the installation process when previously the installation would
try to fallback to the `fetch.php` helper - it seems that the https stream
wrapper is not included in PHP by default. Now that the phar is committed to
version control, the `fetch.php` helper script is no longer needed. After this
patch, `./configure --with-pear --enable-xml` allows installing pear with
`make` without additional manual actions.

Author: DanielEScherzer

.gitattributes

@@ -26,3 +26,6 @@
 
 # The OSS fuzz files are bunary
 /ext/date/tests/ossfuzz*.txt binary
+
+# The phar has some binary
+/pear/install-pear-nozlib.phar binary

.gitignore

@@ -125,7 +125,6 @@ config.h.in
 # ------------------------------------------------------------------------------
 /ext/phar/phar.phar
 /ext/phar/phar.php
-/pear/install-pear-nozlib.phar
 /sapi/cgi/php-cgi
 /sapi/fpm/php-fpm
 /sapi/phpdbg/phpdbg

pear/Makefile.frag

@@ -3,29 +3,16 @@ peardir=$(PEAR_INSTALLDIR)
 # Skip all php.ini files altogether
 PEAR_INSTALL_FLAGS = -n -dshort_open_tag=0 -dopen_basedir= -derror_reporting=1803 -dmemory_limit=-1 -ddetect_unicode=0
 
-WGET = `which wget 2>/dev/null`
-FETCH = `which fetch 2>/dev/null`
 PEAR_PREFIX = -dp a${program_prefix}
 PEAR_SUFFIX = -ds a$(program_suffix)
-PEAR_INSTALLER_URL = https://pear.php.net/install-pear-nozlib.phar
 
 install-pear-installer: $(SAPI_CLI_PATH)
 	@$(top_builddir)/sapi/cli/php $(PEAR_INSTALL_FLAGS) pear/install-pear-nozlib.phar -d "$(peardir)" -b "$(bindir)" ${PEAR_PREFIX} ${PEAR_SUFFIX}
 
 install-pear:
 	@echo "Installing PEAR environment:      $(INSTALL_ROOT)$(peardir)/"
 	@if test ! -f $(builddir)/install-pear-nozlib.phar; then \
-		if test -f $(srcdir)/install-pear-nozlib.phar; then \
-			cp $(srcdir)/install-pear-nozlib.phar $(builddir)/install-pear-nozlib.phar; \
-		else \
-			if test ! -z "$(WGET)" && test -x "$(WGET)"; then \
-				"$(WGET)" "${PEAR_INSTALLER_URL}" -nd -P $(builddir)/; \
-			elif test ! -z "$(FETCH)" && test -x "$(FETCH)"; then \
-				"$(FETCH)" -o $(builddir)/ "${PEAR_INSTALLER_URL}"; \
-			else \
-				$(top_builddir)/sapi/cli/php -n $(srcdir)/fetch.php "${PEAR_INSTALLER_URL}" $(builddir)/install-pear-nozlib.phar; \
-			fi \
-		fi \
+		cp $(srcdir)/install-pear-nozlib.phar $(builddir)/install-pear-nozlib.phar; \
 	fi
 	@if test -f $(builddir)/install-pear-nozlib.phar && $(mkinstalldirs) $(INSTALL_ROOT)$(peardir); then \
 		$(MAKE) -s install-pear-installer; \