<div dir="ltr"><div dir="ltr">Welcome to FLASH, David.<div><br></div><div>Here's a help thread with a solution to the iso_c_binding issue by commenting out a few lines of your Makefile:</div><div><a href="https://flash.rochester.edu/pipermail/flash-users/2024-May/008664.html">https://flash.rochester.edu/pipermail/flash-users/2024-May/008664.html</a></div><div><br></div><div>And a handy new user tip that you can Google search the mailing list with a search query like this:</div><div>site:<a href="https://flash.rochester.edu/pipermail/flash-users">https://flash.rochester.edu/pipermail/flash-users</a> iso_c_binding</div><div><br></div><div>Hope this gets you up and running!</div><div><br></div><div>Leland</div><div><br clear="all"></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><span style="color:rgb(34,34,34)">________________</span><div style="color:rgb(34,34,34)">Leland Ellison PhD<div>Pacific Fusion</div><div>Lead - Modeling and Simulations</div></div></div></div></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Jun 5, 2025 at 9:55 PM David Montgomery <<a href="mailto:dsmont80@gmail.com">dsmont80@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;">All,<div><br></div><div>I’m a FLASH newbie, and just installed FLASH4.8 on a laptop running MacOS 12.7.6, following Leland Ellison’s post "Installing FLASH on macOS from scratch” posted 06/13/2023.</div><div><br></div><div>Everything seemed to install successfully, and I edited the Makefile.h as noted in his step 7.</div><div><br></div><div>My Makefile.h is attached</div><div><br></div><div>And I updated all the *.py setup scripts in FLASH4.8/bin to "/usr/bin/env python3” as noted in Step 8.</div><div><br></div><div>I then tried his step 9:</div><div><br></div><div>cd FLASH4.8</div><div>./setup -auto Sedov</div><div><br></div><div>Changing his typo from -audo to -auto</div><div><br></div><div>When I got the following error:</div><div><br></div><div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">make</span></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">rm -f reorder.sh</span></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">/opt/homebrew/bin//mpif90 -ggdb -c -O2 -fdefault-real-8 -fdefault-double-8 -Wuninitialized -fallow-argument-mismatch  -DMAXBLOCKS=1000 -DNXB=8 -DNYB=8 -DNZB=1 -DN_DIM=2 Cpp_interface.F90</span></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures"><b>f951:</b> </span><span style="font-variant-ligatures:no-common-ligatures;color:rgb(180,36,25)"><b>Fatal Error:</b></span><span style="font-variant-ligatures:no-common-ligatures"> Reading module ‘<b>iso_c_binding.mod</b>’ at line 1 column 1: Unexpected EOF</span></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">compilation terminated.</span></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">make: *** [Cpp_interface.o] Error 1</span></div></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures"><br></span></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">I searched the Users posts, and found a previous post stating to include "</span>-fallow-argument-mismatch” in FFLAGS_OPT, FFLAGS_DEBUG, and FFLAGS_TEST.</div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><br></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">But per Leland’s Mac install instructions that has already been done.</div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><br></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">See my attached Makefile.h</div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><br></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">Any help please?</div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><br></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">David Montgomery</div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">LANL Guest Scientist</div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">LANL (retired)</div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"><br></div><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"></div></div><div style="overflow-wrap: break-word;"><div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo"></div></div>_______________________________________________<br>
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</blockquote></div></div>