ZEND_MOD_CONFLICTS doesn't work

Description

When building PHP extension that has ZEND_MOD_CONFLICTS listed in its dependencies, the macro is ineffective when building shared extensions or when conflicting module is registered after such extension.

For example. Suppose we add the following hypothetical change to ext/ctype/ctyp.c (to mark the ext/curl extension as conflicting for the ext/ctype):

diff --git a/ext/ctype/ctype.c b/ext/ctype/ctype.c
--- a/ext/ctype/ctype.c
+++ b/ext/ctype/ctype.c
@@ -33,9 +33,15 @@ static PHP_MINFO_FUNCTION(ctype);
 
 /* }}} */
 
+static const zend_module_dep ctype_deps[] = {
+       ZEND_MOD_CONFLICTS("curl")
+       ZEND_MOD_END
+};
+
 /* {{{ ctype_module_entry */
 zend_module_entry ctype_module_entry = {
-       STANDARD_MODULE_HEADER,
+       STANDARD_MODULE_HEADER_EX, NULL,
+       ctype_deps,
        "ctype",
        ext_functions,
        NULL,
(END)

Then building it with:

./buildconf
./configure --enable-ctype=shared --with-curl=shared
make
./sapi/cli/php -d extension_dir=modules -d extension=ctype -d extension=curl -m

Resulted in this output (here no warning is given):

[PHP Modules]
Core
ctype
curl
date
dom
fileinfo
filter
...
[Zend Modules]

But I expected this output instead:

Warning: Cannot load module "ctype" because conflicting module "curl" is already loaded in Unknown on line 0
[PHP Modules]
Core
curl
date
dom
fileinfo
filter
...
[Zend Modules]

Unlike, when doing:

./sapi/cli/php -d extension_dir=modules -d extension=curl -d extension=ctype -m

the warning is displayed and extension is not loaded as it should be done.

PHP Version

All

Operating System

No response

Bắt đầu với ext/ctype/ctype.c và tái hiện vấn đề bằng các lệnh build và thứ tự tải extension qua CLI được cung cấp. Theo dõi cách ZEND_MOD_CONFLICTS được xử lý khi ctype và curl được tải theo từng thứ tự; hoàn tất khi extension xung đột bị từ chối với cảnh báo mong đợi trong cả hai trường hợp extension dùng chung.