13 uses of REQUIREMENT_WARNING in Drupal 7

color_requirements in modules/color/color.install

Implements hook_requirements().

drupal_requirements_url in includes/install.inc

Returns a URL for proceeding to the next page after a requirements problem.

image_requirements in modules/image/image.install

Implements hook_requirements() to check the PHP GD Library.

install_verify_requirements in includes/install.core.inc

Verifies the requirements for installing Drupal.

openid_requirements in modules/openid/openid.install

Implements hook_requirements().

system_requirements in modules/system/system.install

Implements hook_requirements().

unicode_requirements in includes/unicode.inc

Returns Unicode library status and errors.

UpdateScriptFunctionalTest::testRequirements in modules/system/system.test

Tests that requirements warnings and errors are correctly displayed.

update_check_requirements in ./update.php

Checks update requirements and reports errors and (optionally) warnings.

update_init in modules/update/update.module

Implements hook_init().

update_requirements in modules/update/update.install

Implements hook_requirements().

update_script_test_requirements in modules/simpletest/tests/update_script_test.install

Implements hook_requirements().

_update_requirement_check in modules/update/update.install

Fills in the requirements array.