doc: utilities don't require their dependencies to be enabled.

Probably a leftover from when these dependencies were handled in a
much shittier way? For as long as I remember, enabling WITH_GL_INFO
always enabled WITH_GL and WITH_WINDOWLESSWHATEVERAPPLICATION
implicitly.

doc/building.dox

@@ -610,26 +610,27 @@ There are also a few command-line utilities, also all disabled by default:
 
 -   `WITH_GL_INFO` --- Build the @ref magnum-gl-info "magnum-gl-info"
     executable, which provides information about the engine OpenGL
-    capabilities. Requires `TARGET_GL` to be enabled; enables building of one
-    of the windowless application libraries based on the target platform.
+    capabilities. Requires `TARGET_GL` to be enabled; enables also building of
+    the @ref GL library and one of the windowless application libraries based
+    on the target platform.
 -   `WITH_VK_INFO` --- Build the @ref magnum-vk-info "magnum-vk-info"
     executable, which provides information about the engine Vulkan
-    capabilities. Requires `TARGET_VK` to be enabled; enables building of the
-    @ref Vk library.
+    capabilities. Requires `TARGET_VK` to be enabled; enables also building of
+    the @ref Vk library.
 -   `WITH_AL_INFO` --- Build the @ref magnum-al-info "magnum-al-info"
     executable, which provides information about the engine OpenAL
-    capabilities.
+    capabilities. Enables also building of the @ref Audio library.
 -   `WITH_DISTANCEFIELDCONVERTER` --- Build the
     @ref magnum-distancefieldconverter "magnum-distancefieldconverter"
     executable for converting black&white images to distance field textures.
-    Enables also building of the @ref TextureTools library. Available only on
-    desktop GL. Requires `TARGET_GL` to be enabled; enables building of one of
-    the windowless application libraries based on the target platform.
+    Available only on desktop GL. Requires `TARGET_GL` to be enabled; enables
+    also building of the @ref TextureTools and @ref GL libraries and one of the
+    windowless application libraries based on the target platform.
 -   `WITH_FONTCONVERTER` --- Build the @ref magnum-fontconverter "magnum-fontconverter"
-    executable for converting fonts of different formats. Enables also building
-    of the @ref Text library. Available only on desktop GL. Requires
-    `TARGET_GL` to be enabled; enables building of one of the windowless
-    application libraries based on the target platform.
+    executable for converting fonts of different formats. Available only on
+    desktop GL. Requires `TARGET_GL` to be enabled; enables also building of
+    the @ref Text and @ref GL libraries and one of the windowless application
+    libraries based on the target platform.
 -   `WITH_IMAGECONVERTER` --- Build the @ref magnum-imageconverter "magnum-imageconverter"
     executable for converting images of different formats. Enables also
     building of the @ref Trade library.

src/Magnum/Audio/al-info.cpp

@@ -39,11 +39,10 @@ namespace Magnum {
 
 @m_div{m-button m-primary} <a href="https://magnum.graphics/showcase/al-info/">@m_div{m-big}Live web version @m_enddiv @m_div{m-small} uses WebAssembly & WebAudio @m_enddiv </a> @m_enddiv
 
-This utility depends on the [OpenAL](https://www.openal.org/) library. It is
-built if both `WITH_AUDIO` and `WITH_AL_INFO` is enabled when building Magnum.
-To use this utility with CMake, you need to request the `al-info` component of
-the `Magnum` package and use the `Magnum::al-info` target for example in a
-custom command:
+This utility is built if `WITH_AL_INFO` is enabled when building Magnum. To use
+this utility with CMake, you need to request the `al-info` component of the
+`Magnum` package and use the `Magnum::al-info` target for example in a custom
+command:
 
 @code{.cmake}
 find_package(Magnum REQUIRED al-info)

src/Magnum/Platform/gl-info.cpp

@@ -91,10 +91,10 @@ namespace Magnum {
 
 @m_div{m-button m-primary} <a href="https://magnum.graphics/showcase/gl-info/">@m_div{m-big}Live web version @m_enddiv @m_div{m-small} uses WebAssembly & WebGL @m_enddiv </a> @m_enddiv
 
-This utility is built if both `WITH_GL` and `WITH_GL_INFO` is enabled when
-building Magnum. To use this utility with CMake, you need to request the
-`gl-info` component of the `Magnum` package and use the `Magnum::gl-info`
-target for example in a custom command:
+This utility is built if `WITH_GL_INFO` is enabled when building Magnum. To use
+this utility with CMake, you need to request the `gl-info` component of the
+`Magnum` package and use the `Magnum::gl-info` target for example in a custom
+command:
 
 @code{.cmake}
 find_package(Magnum REQUIRED gl-info)

src/Magnum/SceneTools/sceneconverter.cpp

@@ -60,10 +60,10 @@ namespace Magnum {
 @m_footernavigation
 @m_keywords{magnum-sceneconverter sceneconverter}
 
-This utility is built if both `WITH_TRADE` and `WITH_SCENECONVERTER` is enabled
-when building Magnum. To use this utility with CMake, you need to request the
-`sceneconverter` component of the `Magnum` package and use the
-`Magnum::sceneconverter` target for example in a custom command:
+This utility is built if `WITH_SCENECONVERTER` is enabled when building Magnum.
+To use this utility with CMake, you need to request the `sceneconverter`
+component of the `Magnum` package and use the `Magnum::sceneconverter` target
+for example in a custom command:
 
 @code{.cmake}
 find_package(Magnum REQUIRED imageconverter)
@@ -71,7 +71,7 @@ find_package(Magnum REQUIRED imageconverter)
 add_custom_command(OUTPUT ... COMMAND Magnum::sceneconverter ...)
 @endcode
 
-See @ref building, @ref cmake and the @ref Trade namespace for more
+See @ref building and @ref cmake and the @ref Trade namespace for more
 information.
 
 @section magnum-sceneconverter-usage Usage

src/Magnum/ShaderTools/shaderconverter.cpp

@@ -45,9 +45,9 @@ namespace Magnum {
 @m_footernavigation
 @m_keywords{magnum-shaderconverter shaderconverter}
 
-This utility is built if both `WITH_SHADERTOOLS` and `WITH_SHADERCONVERTER` is
-enabled when building Magnum. To use this utility with CMake, you need to
-request the `shaderconverter` component of the `Magnum` package and use the
+This utility is built if `WITH_SHADERCONVERTER` is enabled when building
+Magnum. To use this utility with CMake, you need to request the
+`shaderconverter` component of the `Magnum` package and use the
 `Magnum::shaderconverter` target for example in a custom command:
 
 @code{.cmake}

src/Magnum/Text/fontconverter.cpp

@@ -65,10 +65,10 @@ namespace Magnum {
 @m_footernavigation
 @m_keywords{magnum-fontconverter fontconverter}
 
-This utility is built if both `WITH_TEXT` and `WITH_FONTCONVERTER` is enabled
-when building Magnum. To use this utility with CMake, you need to request the
-`fontconverter` component of the `Magnum` package and use the
-`Magnum::fontconverter` target for example in a custom command:
+This utility is built if `WITH_FONTCONVERTER` is enabled when building Magnum.
+To use this utility with CMake, you need to request the `fontconverter`
+component of the `Magnum` package and use the `Magnum::fontconverter` target
+for example in a custom command:
 
 @code{.cmake}
 find_package(Magnum REQUIRED fontconverter)

src/Magnum/TextureTools/distancefieldconverter.cpp

@@ -72,11 +72,10 @@ namespace Magnum {
 @m_footernavigation
 @m_keywords{magnum-distancefieldconverter distancefieldconverter}
 
-This utility is built if both `WITH_TEXTURETOOLS` and
-`WITH_DISTANCEFIELDCONVERTER` is enabled when building Magnum. To use this
-utility with CMake, you need to request the `distancefieldconverter` component
-of the `Magnum` package and use the `Magnum::distancefieldconverter` target for
-example in a custom command:
+This utility is built if `WITH_DISTANCEFIELDCONVERTER` is enabled when building
+Magnum. To use this utility with CMake, you need to request the
+`distancefieldconverter` component of the `Magnum` package and use the
+`Magnum::distancefieldconverter` target for example in a custom command:
 
 @code{.cmake}
 find_package(Magnum REQUIRED distancefieldconverter)

src/Magnum/Trade/imageconverter.cpp

@@ -51,10 +51,10 @@ namespace Magnum {
 @m_footernavigation
 @m_keywords{magnum-imageconverter imageconverter}
 
-This utility is built if both `WITH_TRADE` and `WITH_IMAGECONVERTER` is enabled
-when building Magnum. To use this utility with CMake, you need to request the
-`imageconverter` component of the `Magnum` package and use the
-`Magnum::imageconverter` target for example in a custom command:
+This utility is built if `WITH_IMAGECONVERTER` is enabled when building Magnum.
+To use this utility with CMake, you need to request the `imageconverter`
+component of the `Magnum` package and use the `Magnum::imageconverter` target
+for example in a custom command:
 
 @code{.cmake}
 find_package(Magnum REQUIRED imageconverter)

src/Magnum/Vk/vk-info.cpp

@@ -43,10 +43,10 @@ namespace Magnum {
 @m_footernavigation
 @m_keywords{magnum-vk-info vk-info}
 
-This utility is built if both `WITH_VK` and `WITH_VK_INFO` is enabled when
-building Magnum. To use this utility with CMake, you need to request the
-`vk-info` component of the `Magnum` package and use the `Magnum::vk-info`
-target for example in a custom command:
+This utility is built if `WITH_VK_INFO` is enabled when building Magnum. To use
+this utility with CMake, you need to request the `vk-info` component of the
+`Magnum` package and use the `Magnum::vk-info` target for example in a custom
+command:
 
 @code{.cmake}
 find_package(Magnum REQUIRED vk-info)