[scl.org] devtoolset-9 | missing findloc intrinsic?

Evan Cooch evan.cooch at gmail.com
Sun Mar 28 18:44:12 UTC 2021


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=http://bugzilla.redhat.com/bugzilla --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)


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