https://community.intel.com/t5/Intel-Fortran-Compiler/Error/m-p/1530385#M168449 <P>From:&nbsp;<A href="https://community.intel.com/t5/Intel-C-Compiler/ldexpf-already-defined-linker-error/td-p/1089997" target="_blank">https://community.intel.com/t5/Intel-C-Compiler/ldexpf-already-defined-linker-error/td-p/1089997</A></P><P>This appears to be a C++ issue with math.h.</P><P>In there, ldexpf is defined as an inline function.</P><P>However, when compiling without optimizations, this function is NOT inlined.</P><P>Apparently, this function is defined elsewhere (possibly as an inline function), and as such, when compiled with optimization, the error will not appear.</P><P>&nbsp;</P><P>Jim Dempsey</P><P>&nbsp;</P><P>&nbsp;</P> Wed, 04 Oct 2023 18:35:09 GMT jimdempseyatthecove 2023-10-04T18:35:09Z https://community.intel.com/t5/Intel-Fortran-Compiler/Error/m-p/1530370#M168448 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Screenshot 2023-10-04 125857.png" style="width: 999px;"><img src="https://community.intel.com/t5/image/serverpage/image-id/46410i7F69134139925C9C/image-size/large/is-moderation-mode/true?v=v2&amp;px=999&amp;whitelist-exif-data=Orientation%2CResolution%2COriginalDefaultFinalSize%2CCopyright" role="button" title="Screenshot 2023-10-04 125857.png" alt="Screenshot 2023-10-04 125857.png" /></span></P><P>This is a program that I have had a lot of help with over the years.&nbsp;&nbsp;</P><P>It compiles fine on 2019 but the latest preview throws this error, I am sure I have seen this before, but I am stumped.&nbsp;</P><P>Any help appreciated.</P><P>&nbsp;</P> Wed, 04 Oct 2023 18:04:38 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Error/m-p/1530370#M168448 JohnNichols 2023-10-04T18:04:38Z https://community.intel.com/t5/Intel-Fortran-Compiler/Error/m-p/1530385#M168449 <P>From:&nbsp;<A href="https://community.intel.com/t5/Intel-C-Compiler/ldexpf-already-defined-linker-error/td-p/1089997" target="_blank">https://community.intel.com/t5/Intel-C-Compiler/ldexpf-already-defined-linker-error/td-p/1089997</A></P><P>This appears to be a C++ issue with math.h.</P><P>In there, ldexpf is defined as an inline function.</P><P>However, when compiling without optimizations, this function is NOT inlined.</P><P>Apparently, this function is defined elsewhere (possibly as an inline function), and as such, when compiled with optimization, the error will not appear.</P><P>&nbsp;</P><P>Jim Dempsey</P><P>&nbsp;</P><P>&nbsp;</P> Wed, 04 Oct 2023 18:35:09 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Error/m-p/1530385#M168449 jimdempseyatthecove 2023-10-04T18:35:09Z