Re: [igraph] Cygwin -> Windows compilation - again.

[Mark McClure]

I've made some progress towards compiling my simple program
for Windows but it's still not quite there.  After searching
the mailing list archives (which appeared to be unavailable
earlier today), I tried moving around the order of the 
command line arguments.  Amazingly it worked; the program
compiles and runs fine from Cygwin.  The problem is that I 
still can't get it to run in Windows without Cygwin.  I've
tried compiling with and without the -mno-cygwin flag and 
the program doesn't run in Windows either way.  I ran
Dependency Walker on the program and found that the program
needs CYGIGRAPH-0.DLL with or without the -mno-cygwin flag.
Without the -mno-cygwin flag, it also needs CYGWIN1.DLL.

I've included my previous message below.
Thanks again,
Mark


----- Original Message -----
From: Mark McClure <address@hidden>
Date: Monday, March 9, 2009 4:30 pm
Subject: [igraph] Cygwin -> Windows compilation - again.
To: address@hidden

> I've been experimenting with igraph for a few weeks on my
> Macintosh and it's been working great.  The application that
> I'm working towards will need to run on Windows, as well as
> Macintosh, so I've installed Cygwin on a Windows machine
> across the hall to experiment.  I've been able to compile
> some simple programs on Cygwin that work fine on Windows but
> I've yet to get the simplest igraph programs to compile.  I
> have built the igraph library and it seems to have installed
> fine into /usr/local/include/igraph and /usr/local/lib, but
> I get undefined reference errors when trying to compile a
> program.
> 
> I've included the command line compilation errors and the
> program below.  Note that the program comes from the igraph
> tutorial here:
> http://cneurocvs.rmki.kfki.hu/igraph/doc/html/ch03s01.html
> 
> Thanks for any assistance,
> Mark McClure
> 
> 
> ------- Compilation errors ---------------
> $ gcc -mno-cygwin -I/usr/local/include/igraph -L/usr/local/lib -
> ligraph -o first_igraph first_igraph.c 
> /cygdrive/c/DOCUME~1/STUDEN~1.RBH/LOCALS~1/Temp/ccfgahVf.o:first_igraph.c:(.text+0x60): undefined reference to `_igraph_erdos_renyi_game'
> /cygdrive/c/DOCUME~1/STUDEN~1.RBH/LOCALS~1/Temp/ccfgahVf.o:first_igraph.c:(.text+0x9a): undefined reference to `_igraph_diameter'
> /cygdrive/c/DOCUME~1/STUDEN~1.RBH/LOCALS~1/Temp/ccfgahVf.o:first_igraph.c:(.text+0xb8): undefined reference to `_igraph_destroy'
> collect2: ld returned 1 exit status
> -------------------------------------------
> 
> 
> --- The program from the igraph tutorial --
> #include <igraph.h>
> 
> int main(void)
> {
>      igraph_real_t diameter;
>      igraph_t graph;
>      igraph_erdos_renyi_game(&graph, IGRAPH_ERDOS_RENYI_GNP, 
> 1000, 5.0/1000,
>                              IGRAPH_UNDIRECTED, IGRAPH_NO_LOOPS);
>      igraph_diameter(&graph, &diameter, 0, 0, 0, 
> IGRAPH_UNDIRECTED, 1);
>      printf("Diameter of a random graph with average degree 5: %f\n",
>              (double) diameter);
>      igraph_destroy(&graph);
>      return 0;
> }
> 
> 
>