Move acinclude.m4 to build/php.m4

The acinclude.m4 file is in a usual Autotools build processed with
Automake's aclocal tool. Since PHP currently doesn't use Automake and
aclocal this file can be moved into the build directory. PHP build
system currently generates a combined aclocal.m4 file that Autoconf
can processes automatically.

However, a newer practice is writing all local macros in separate
dedicated files prefixed with package name, in PHP's case PHP_MACRO_NAME
and putting them in a common `m4` directory. PHP uses currently `build`
directory for this purpose.

Name `php.m4` probably most resembles such file for PHP's case.

PHP manually created the aclocal.m4 file from acinclude.m4 and
build/libtool.m4. Which is also not a particularly good practice [1], so
this patch also removes the generated alocal.m4 usage and uses
m4_include() calls manually in the configure.ac and phpize.m4 files
manually.

- sort order is not important but can be alphabetical
- list of *.m4 files prerequisites for configure script generation
  updated
- Moving m4_include() before AC_INIT also removes all comments starting
  with hash character (`#`) in the included files.

[1] https://autotools.io/autoconf/macros.html

1 files changed, 3 insertions, 4 deletions

diff --git a/scripts/phpize.in b/scripts/phpize.in
index ccb9357574..7a10a369bf 100644
--- a/scripts/phpize.in
+++ b/scripts/phpize.in
@@ -9,11 +9,11 @@ includedir="`eval echo @includedir@`/php"
 builddir="`pwd`"
 SED="@SED@"
 
-FILES_BUILD="shtool libtool.m4 ax_check_compile_flag.m4 ax_gcc_func_attribute.m4 php_cxx_compile_stdcxx.m4 pkg.m4 config.guess config.sub ltmain.sh Makefile.global"
-FILES="acinclude.m4 run-tests*.php"
+FILES_BUILD="php.m4 shtool libtool.m4 ax_check_compile_flag.m4 ax_gcc_func_attribute.m4 php_cxx_compile_stdcxx.m4 pkg.m4 config.guess config.sub ltmain.sh Makefile.global"
+FILES="run-tests*.php"
 CLEAN_FILES="$FILES *.o *.lo *.la .libs/ build/ modules/ \
 	config.nice configure configure.ac \
-	aclocal.m4 config.h config.h.in conftest* libtool config.cache autom4te.cache/ \
+	config.h config.h.in conftest* libtool config.cache autom4te.cache/ \
 	config.log config.status Makefile Makefile.fragments Makefile.objects confdefs.h \
 	run-tests*.php tests/*.diff tests/*.exp tests/*.log tests/*.out tests/*.php"
 
@@ -146,7 +146,6 @@ phpize_copy_files()
 
   (cd "$phpdir" && cp $FILES_BUILD "$builddir"/build)
   (cd "$phpdir" && cp $FILES "$builddir")
-  (cd "$builddir" && cat acinclude.m4 ./build/libtool.m4 > aclocal.m4)
 }
 
 phpize_replace_prefix()