linux-gcc single-thread default make segfaults

[ahbarnett]

linux-gcc single-thread build segfaults.
(same setup as Issue #1)

./int2
 . . . printing flags and options
 norder_skel = 
      12
 norder_smooth = 
       4
 adapt_flag = 
       1
 filename = ./geometries/cuboid_a1_b2_c1p3.tri
 order not converted in .tri files, double check!!
At line 753 of file src/cisurf_loadmsh.f90 (unit = 8, file = 'fort.8')
Fortran runtime error: End of file

Error termination. Backtrace:
#0  0x7f840ee23960 in ???
#1  0x7f840ee244d9 in ???
#2  0x7f840ee2510f in ???
#3  0x7f840f07817b in ???
#4  0x7f840f071684 in ???
#5  0x7f840f0722aa in ???
#6  0x55c9e4239476 in readtri_
	at src/cisurf_loadmsh.f90:753
#7  0x55c9e42318fe in smoother
	at examples/test_surfsmooth.f90:280
#8  0x55c9e423146e in main
	at examples/test_surfsmooth.f90:9
make: *** [makefile:154: all] Error 2