<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> Thought I'd rule out the difference between 9.3.1 on my machines, and 9.2.0 on my colleagues machine. Fired up a VM with 9.2.0, but still get the same error. I had someone email me off list saying FINDLOC is 'twitchy' (his words) and perhaps not worth the effort. But still, puzzled why it seems to be 'found' for the mingw 9.x.x binaries under windows, but not within devtoolset-9. <div class="moz-cite-prefix">On 3/28/2021 2:44 PM, Evan Cooch wrote: </div> <blockquote type="cite" cite="mid:a5daf108-11ca-d127-aabc-c48f2aa4e52d@gmail.com"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> Weird one (perhaps). Colleague and I trade back a large slug of FORTRAN code -- he is on a Windows machine, running mingw gfortran 9.2. He recently made a small code update that calls the findloc intrinsic, which is suppoted in 9.x.x. Code compiles fine on his end. But, on my end, no such luck -- I'm on Linux boxes (CentOS 7), running gfortran 9.3.1 under scl devtoolset. When I try to compile the exact same code, I get a fail at the end -- a few lines referring to a call to FINDLOC in one of the modules (something called estmat). /opt/rh/devtoolset-9/root/usr/libexec/gcc/x86_64-redhat-linux/9/ld: estmat.o: in function `filldm.3876': estmat.f90:(.text+0x1201): undefined reference to `_gfortran_findloc0_s1' Was wondering if anyone can give me some advice? Is there a way to 'look for' FINDLOC on my box (irony accidental), or (perhaps) if there is a packaging issue with devtoolkit for CentOS, is there something I can do to correct the problem? Many thanks in advance... If it matters, this is what 'gfortran -v' returns on my machine: Using built-in specs. COLLECT_GCC=gfortran COLLECT_LTO_WRAPPER=/opt/rh/devtoolset-9/root/usr/libexec/gcc/x86_64-redhat-linux/9/lto-wrapper Target: x86_64-redhat-linux Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,lto --prefix=/opt/rh/devtoolset-9/root/usr --mandir=/opt/rh/devtoolset-9/root/usr/share/man --infodir=/opt/rh/devtoolset-9/root/usr/share/info --with-bugurl=<a class="moz-txt-link-freetext" href="http://bugzilla.redhat.com/bugzilla" moz-do-not-send="true">http://bugzilla.redhat.com/bugzilla</a> --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --with-linker-hash-style=gnu --with-default-libstdcxx-abi=gcc4-compatible --enable-plugin --enable-initfini-array --with-isl=/builddir/build/BUILD/gcc-9.3.1-20200408/obj-x86_64-redhat-linux/isl-install --disable-libmpx --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux Thread model: posix gcc version 9.3.1 20200408 (Red Hat 9.3.1-2) (GCC) </blockquote> </body> </html>