Image: Include S3TC compression via Squish in non-tools build

We already build Squish in templates build for S3TC decompression,
so we can as well expose the compression feature.

Fixes #25640.

modules/squish/image_compress_squish.cpp

@@ -73,7 +73,6 @@ void image_decompress_squish(Image *p_image) {
 	p_image->create(p_image->get_width(), p_image->get_height(), p_image->has_mipmaps(), target_format, data);
 }
 
-#ifdef TOOLS_ENABLED
 void image_compress_squish(Image *p_image, float p_lossy_quality, Image::CompressSource p_source) {
 
 	if (p_image->get_format() >= Image::FORMAT_DXT1)
@@ -203,4 +202,3 @@ void image_compress_squish(Image *p_image, float p_lossy_quality, Image::Compres
 		p_image->create(p_image->get_width(), p_image->get_height(), p_image->has_mipmaps(), target_format, data);
 	}
 }
-#endif

modules/squish/image_compress_squish.h

@@ -33,9 +33,7 @@
 
 #include "core/image.h"
 
-#ifdef TOOLS_ENABLED
 void image_compress_squish(Image *p_image, float p_lossy_quality, Image::CompressSource p_source);
-#endif
 void image_decompress_squish(Image *p_image);
 
 #endif // IMAGE_COMPRESS_SQUISH_H

modules/squish/register_types.cpp

@@ -33,9 +33,7 @@
 
 void register_squish_types() {
 
-#ifdef TOOLS_ENABLED
 	Image::set_compress_bc_func(image_compress_squish);
-#endif
 	Image::_image_decompress_bc = image_decompress_squish;
 }
 

platform/haiku/detect.py

@@ -95,7 +95,7 @@ def configure(env):
     if not env['builtin_enet']:
         env.ParseConfig('pkg-config libenet --cflags --libs')
 
-    if not env['builtin_squish'] and env['tools']:
+    if not env['builtin_squish']:
         env.ParseConfig('pkg-config libsquish --cflags --libs')
 
     if not env['builtin_zstd']:

platform/server/detect.py

@@ -162,7 +162,7 @@ def configure(env):
     if not env['builtin_enet']:
         env.ParseConfig('pkg-config libenet --cflags --libs')
 
-    if not env['builtin_squish'] and env['tools']:
+    if not env['builtin_squish']:
         env.ParseConfig('pkg-config libsquish --cflags --libs')
 
     if not env['builtin_zstd']:

platform/x11/detect.py

@@ -232,7 +232,7 @@ def configure(env):
     if not env['builtin_enet']:
         env.ParseConfig('pkg-config libenet --cflags --libs')
 
-    if not env['builtin_squish'] and env['tools']:
+    if not env['builtin_squish']:
         env.ParseConfig('pkg-config libsquish --cflags --libs')
 
     if not env['builtin_zstd']: