libExpat is unexpectedly big

[mulle-nat]

Is this because of -O3 ?

-r--r--r-- 1 foundation foundation   4612 Apr 18 10:48 libFoundation-startup.a
-r--r--r-- 1 foundation foundation   7192 Apr 18 10:48 libFoundation.a
-r--r--r-- 1 foundation foundation  17092 Apr 18 10:47 libMulleFoundation.a
-r--r--r-- 1 foundation foundation 252762 Apr 18 10:47 libMulleObjC.a
-r--r--r-- 1 foundation foundation 111624 Apr 18 10:47 libMulleObjCCalendarFoundation.a
-r--r--r-- 1 foundation foundation 329502 Apr 18 10:47 libMulleObjCContainerFoundation.a
-r--r--r-- 1 foundation foundation  35682 Apr 18 10:47 libMulleObjCExpatFoundation.a
-r--r--r-- 1 foundation foundation 102572 Apr 18 10:47 libMulleObjCHTTPFoundation.a
-r--r--r-- 1 foundation foundation  76356 Apr 18 10:47 libMulleObjCInetFoundation.a
-r--r--r-- 1 foundation foundation  26716 Apr 18 10:47 libMulleObjCInetOSFoundation.a
-r--r--r-- 1 foundation foundation 141474 Apr 18 10:47 libMulleObjCKVCFoundation.a
-r--r--r-- 1 foundation foundation  69472 Apr 18 10:47 libMulleObjCLinuxFoundation.a
-r--r--r-- 1 foundation foundation  12208 Apr 18 10:47 libMulleObjCMathFoundation.a
-r--r--r-- 1 foundation foundation 363138 Apr 18 10:47 libMulleObjCOSBaseFoundation.a
-r--r--r-- 1 foundation foundation   6342 Apr 18 10:47 libMulleObjCOSFoundation.a
-r--r--r-- 1 foundation foundation 215784 Apr 18 10:47 libMulleObjCPosixFoundation.a
-r--r--r-- 1 foundation foundation 828558 Apr 18 10:47 libMulleObjCStandardFoundation.a
-r--r--r-- 1 foundation foundation 495126 Apr 18 10:47 libMulleObjCValueFoundation.a
-r--r--r-- 1 foundation foundation 655552 Apr 18 10:47 libexpat.a
-r--r--r-- 1 foundation foundation  29126 Apr 18 10:47 libmulle-aba.a
-r--r--r-- 1 foundation foundation   4432 Apr 18 10:47 libmulle-allocator.a
-r--r--r-- 1 foundation foundation   4798 Apr 18 10:47 libmulle-atexit.a
-r--r--r-- 1 foundation foundation  12142 Apr 18 10:47 libmulle-atinit.a
-r--r--r-- 1 foundation foundation  12478 Apr 18 10:47 libmulle-buffer.a
-r--r--r-- 1 foundation foundation  12052 Apr 18 10:47 libmulle-concurrent.a
-r--r--r-- 1 foundation foundation  89428 Apr 18 10:47 libmulle-container.a
-r--r--r-- 1 foundation foundation   1468 Apr 18 10:47 libmulle-dlfcn.a
-r--r--r-- 1 foundation foundation   4446 Apr 18 10:47 libmulle-mmap.a
-r--r--r-- 1 foundation foundation  48980 Apr 18 10:47 libmulle-objc-compat.a
-r--r--r-- 1 foundation foundation 392180 Apr 18 10:47 libmulle-objc-runtime.a
-r--r--r-- 1 foundation foundation  60080 Apr 18 10:47 libmulle-sprintf.a
-r--r--r-- 1 foundation foundation   9348 Apr 18 10:47 libmulle-stacktrace.a
-r--r--r-- 1 foundation foundation   1146 Apr 18 10:47 libmulle-thread.a
-r--r--r-- 1 foundation foundation 272874 Apr 18 10:47 libmulle-utf.a
-r--r--r-- 1 foundation foundation   1222 Apr 18 10:47 libmulle-vararg.a

It's the second biggest library! I thought it was small...