hdf4 @4.2.6 +gcc45 compiling error - linking failure

[xt10@…]

"h4fc" (the compiling command) fails to compile fortran77 program associated with hdf library. The command and error message is as below:

xxxx:xxx xxx$ h4fc sds_rd.f -o sds_rd.exe
   gfortran-mp-4.5: /opt/local/bin/gfortran-mp-4.5: linker input file       unused because linking not done
   ld: in /opt/local/bin/gfortran-mp-4.5, can't link with a main    executable
   collect2: ld returned 1 exit status

[ryandesign (Ryan Carsten Schmidt)]

Please remember to preview before submitting so you can ensure you got your WikiFormatting right; Don't set Priority to High; Do Cc the maintainer of the affected port.

[kgh03@…]

the problem lies in /opt/local/bin/h4fc
$FFLAGS contains the compiler so it appears twice on the command.
passing -echo flag to h4fc reveals this:

 + eval /opt/local/bin/gfortran-mp-4.5 /opt/local/bin/gfortran-mp-4.5 -pipe -O2 -m32 -arch ppc -L/opt/local/lib -L/opt/local/lib sd_rd.o -L/opt/local/lib -lmfhdf -ldf -lsz -ljpeg -lz
++ /opt/local/bin/gfortran-mp-4.5 /opt/local/bin/gfortran-mp-4.5 -pipe -O2 -m32 -arch ppc -L/opt/local/lib -L/opt/local/lib sd_rd.o -L/opt/local/lib -lmfhdf -ldf -lsz -ljpeg -lz
ld: in /opt/local/bin/gfortran-mp-4.5, can't link with a main executable
collect2: ld returned 1 exit status
+ status=1
+ exit 1

removing gfortran from the FFLAGS seems to fix this.

# FFLAGS="/opt/local/bin/gfortran-mp-4.5 -pipe -O2 -m32 "
FFLAGS=" -pipe -O2 -m32 "

tian, if you want a work around for now,

cp /usr/local/bin/h4fc ~/
edit ~/h4fc as above.
then run h4fc as ~/h4fc sds_rd.f

thanks for all your hard work Takeshi.

kelly

Replying to xt10@…:

"h4fc" (the compiling command) fails to compile fortran77 program associated with hdf library. The command and error message is as below:

xxxx:xxx xxx$ h4fc sds_rd.f -o sds_rd.exe
   gfortran-mp-4.5: /opt/local/bin/gfortran-mp-4.5: linker input file       unused because linking not done
   ld: in /opt/local/bin/gfortran-mp-4.5, can't link with a main    executable
   collect2: ld returned 1 exit status

[tenomoto (Takeshi Enomoto)]

configure tries to extract additional flags by grep - from $F77. With gcc4x gfortran-mp-4.x has - within its name so it is regarded as an option. Fixed in r87614.