Re: [Plib-users] Cannot compile

[Peter P. <pet...@st...>]

Peter Poulsen wrote:
> Peter Poulsen wrote:
> 
>> I have installed plib via gentoo's portage system, and several apps 
>> are compiling fine, just not mine :-(
>>
>> This is my app:
>> #include <plib/ssg.h>
>>
>> int main()
>> {
>>     ssgRoot* r = new ssgRoot;
>>     delete r;
>>         return 0;
>> }
>>
>> Here is my compile command:
>> g++ ssg.cc -o ssg_test -lplibsg -lplibssg -lplibul
>>
>> And here is some of the output:
>>
>> /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/../../../libplibssg.a(ssg.o)(.text+0x4): 
>> In function `glIsValidContext()':
>> : undefined reference to `glXGetCurrentContext'
>> /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/../../../libplibssg.a(ssg.o)(.text+0x69f): 
>> In function `ssgCullAndPick(ssgRoot*, float*, float*)':
>> : undefined reference to `glGetIntegerv'
>> /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/../../../libplibssg.a(ssg.o)(.text+0x71e): 
>> In function `ssgCull
>> ...
>>
>> : undefined reference to `glDisable'
>> /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/../../../libplibssg.a(ssgLeaf.o)(.text+0x2b0): 
>> In function `ssgLeaf::makeDList()':
>> : undefined reference to `glEndList'
>> collect2: ld returned 1 exit status
>>
>>
>> What am I doing wrong?
>>
> Ups. If I change my compile command to:
> g++ ssg.cc -o ssg_test -lplibsg -lplibssg -lplibul -lGL
> 
> I get the following error instead:
> /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/../../../libplibssg.a(ssg.o)(.text+0x71e): 
> In function `ssgCullAndPick(ssgRoot*, float*, float*)':
> : undefined reference to `sgMakePickMatrix(float (*) [4], float, float, 
> float, float, float*)'
> ...
> /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/../../../libplibssg.a(ssgSaveATG.o)(.text+0x590): 
> In function `ssgSaveATG(char const*, ssgEntity*)':
> : undefined reference to `sgMakeNormal(float*, float const*, float 
> const*, float const*)'
> collect2: ld returned 1 exit status
> 
I think I nail it. For some reason -lplibsg works best if it is last.

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