[Liblas-devel] liblas 1.0.1 on FreeBSD64 with gcc 3.4.4

[Jeff Hamann]

I'm trying to get liblas-1.0.1 to build on my FreeBSD64 machines and  
discovered that the compiler that's getting used is gcc 3.4.4, which  
compiles and links the 1.0.1 source, but yields the following results  
for example:

$ lasinfo lidar.las

---------------------------------------------------------
   Header Summary
---------------------------------------------------------
   File Name: lidar.las
   Version:                    1.0
   Source ID:                  0
   Reserved:                   0
   Project ID/GUID:           '00000000-0000-0000-0000-000000000000'
   System Identifier:         ''
   Generating Software:       'TerraScan'
   File Creation Day/Year:    0/0
   Header Size                227
   Offset to Point Data       -452984832
   Number Var. Length Records 0
   Point Data Format          1
   Point Data Record Length   28
   Number of Point Records    -261525504
   Number of Points by Return 0 -783548416 295895808 -1851190784  
2110806272
   Scale Factor X Y Z         7.68817e+284 7.68817e+284 7.68817e+284
   Offset X Y Z               0.000000 0.000000 0.000000
   Min X Y Z                  0.000000 0.000000  
738736861263988851298380279202391078391644568474981382591204550317796735641019245818295007277452811570850587484972658344932700484666392576.000000
   Max X Y Z                  0.000000 -0.000000 -0.000000
  Spatial Reference
$

After doing a little research, it looks like I need a compiler that's  
a little more recent, which I have, but I'm not sure how to tell ./ 
configure to use the more recent compiler. Since I'm somewhat of a  
newbie with libtool, automake, and autoconf, does anyone have a  
suggestion for simply telling ./configure (or mod'n the inputs) to  
require gcc 4.1+?

Also, if any of this helps...

$ uname -a
FreeBSD bobby.forestinformatics.com 6.0-RELEASE FreeBSD 6.0-RELEASE  
#2: Sun Nov 27 14:07:55 PST 2005      
hamannj at bobby.forestinformatics.com:/usr/obj/usr/src/sys/GENERIC  amd64

$ gcc --version
gcc (GCC) 3.4.4 [FreeBSD] 20050518
Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There  
is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR  
PURPOSE.

$