# Warning: size of symbol \`bstate3\_' changed

**URL:** <https://forum.cmascenter.org/t/warning-size-of-symbol-bstate3-changed/1950>\
**Category:** Compiling\
**Created:** [November 30, 2020, 4:50am UTC](https://forum.cmascenter.org/t/warning-size-of-symbol-bstate3-changed/1950 "2020-11-30T04:50:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![skunwar](https://avatars.discourse-cdn.com/v4/letter/s/9f8e36/32.png) [@skunwar](https://forum.cmascenter.org/u/skunwar)\
**Post date:** [November 30, 2020, 4:50am UTC](https://forum.cmascenter.org/t/warning-size-of-symbol-bstate3-changed/1950/1 "2020-11-30T04:50:26Z")

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I was recompiling CMAQv5.3.2 after a small correction aqchem.F (changed maximum iterations from default 60,000 to 100,000) using ‘make clean’ followed by ‘make’ under BLD directory when I got this last line on my standard output:

`ld: Warning: size of symbol `bstate3_' changed from 14835740 in pshut3.o to 14835744 in /proj//MYLIB_PROJ/cmaqv5.3.2_17oct2020/CMAQ_Project_17oct2020/lib/x86_64/intel/ioapi/lib/libioapi.a(initblk3.o)`

The compilation process did create a CCTM.exe file but I wanted to ask if this Warning needs further investigation.

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**Author:** ![cjcoats](https://avatars.discourse-cdn.com/v4/letter/c/ac8455/32.png) [@cjcoats](https://forum.cmascenter.org/u/cjcoats)\
**Post date:** [November 30, 2020, 12:54pm UTC](https://forum.cmascenter.org/t/warning-size-of-symbol-bstate3-changed/1950/2 "2020-11-30T12:54:33Z")

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This seems to be a spurious warning that can happen when parts of the system are built with different compile-flags or compiler-versions (from the same vendor)