Have you at least looked into the file you've attached, Deepak?

> /root/Desktop/siesta/Src/FoX/configure: line 1945: mpif90: command not
> found
> configure:1947: $? = 127
> configure:1949: mpif90 -v </dev/null >&5
> /root/Desktop/siesta/Src/FoX/configure: line 1950: mpif90: command not
> found
> configure:1952: $? = 127
> configure:1954: mpif90 -V </dev/null >&5
> /root/Desktop/siesta/Src/FoX/configure: line 1955: mpif90: command not
> found
> configure:1957: $? = 127
> configure:1970: checking for linker flag to name executables
> configure:1978: $FC $ac_link_obj_flag""conftest$ac_exeext $FCFLAGS
> $LDFLAGS $FCFLAGS_SRCEXT conftest.$ac_ext $LIBS >&5
> /root/Desktop/siesta/Src/FoX/configure: line 1979: mpif90: command not
> found
> configure:1981: $? = 127
> configure:1978: $FC $ac_link_obj_flag""conftest$ac_exeext $FCFLAGS
> $LDFLAGS $FCFLAGS_SRCEXT conftest.$ac_ext $LIBS >&5
> /root/Desktop/siesta/Src/FoX/configure: line 1979: mpif90: command not
> found
> configure:1981: $? = 127
> configure:1978: $FC $ac_link_obj_flag""conftest$ac_exeext $FCFLAGS
> $LDFLAGS $FCFLAGS_SRCEXT conftest.$ac_ext $LIBS >&5
> /root/Desktop/siesta/Src/FoX/configure: line 1979: mpif90: command not
> found
> configure:1981: $? = 127

Check your PATH, or check whether the Fortran compiler and MPI are
actually installed.

Cheers,
Bartek

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