Using built-in specs.
COLLECT_GCC=gfortran
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --enable-gnu-indirect-function --enable-multilib --disable-werror --enable-checking=release --enable-default-pie --enable-default-ssp
Thread model: posix
gcc version 7.3.1 20180406 (GCC) 
COLLECT_GCC_OPTIONS='-v' '-fdefault-integer-8' '-ffree-line-length-none' '-O3' '-fPIC' '-c' '-mtune=generic' '-march=x86-64'
 /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/f951 dispmodule.f90 -quiet -dumpbase dispmodule.f90 -mtune=generic -march=x86-64 -auxbase dispmodule -O3 -version -fdefault-integer-8 -ffree-line-length-none -fPIC -fintrinsic-modules-path /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/finclude -o /tmp/ccbjdXTw.s
GNU Fortran (GCC) version 7.3.1 20180406 (x86_64-pc-linux-gnu)
	compiled by GNU C version 7.3.1 20180406, GMP version 6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version isl-0.18-GMP

GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU Fortran2008 (GCC) version 7.3.1 20180406 (x86_64-pc-linux-gnu)
	compiled by GNU C version 7.3.1 20180406, GMP version 6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version isl-0.18-GMP

GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
dispmodule.f90:1248:0:

     character(widthmax_dint(x, fmt)) :: sa(size(x))
 
internal compiler error: in conv_function_val, at fortran/trans-expr.c:3717
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.archlinux.org/> for instructions.