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Date: Thu, 29 Jan 2009 00:08:22 +0100
Message-ID: <6910a60901281508u6593920eu3ee1dd5c826c67e8@mail.gmail.com>
Subject: Re: opengl-1.1.0-10 glut32 linking problems
From: Reini Urban <rurban AT x-ray DOT at>
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2009/1/28 Reini Urban:
> The importlib /usr/lib/w32api/libglut32.a has some problems. Linking
> to the dll directly works fine.
>
> $ cat test.c
> #include <stdio.h>
> #include <stdlib.h>
> #include <GL/glut.h>
> int main(int argc, char *argv[])
> {
>    if(glutInit == NULL) {
>        printf("glutInit is NULL\n");
>        return EXIT_FAILURE;
>    }
>    printf("GLUT %d\n",        GLUT_API_VERSION);
>    return EXIT_SUCCESS;
> }
> $ gcc test.c -lglut32 -lglu -lopengl32
> undefined reference to `___glutInitWithExit'
> undefined reference to `___glutCreateWindowWithExit'
> undefined reference to `___glutCreateMenuWithExit'
> $ gcc test.c /bin/glut32.dll -lglu -lopengl32
>
> $ ./a
> GLUT 3

> I see nothing problematic, but I'm no expert

And to answer the libsearch patch question, about being shadowed from
another libglut:

$ gcc --verbose test_1676.c -lglut32 -lglu32 -lopengl32 2>&1 |grep collect2

$ /usr/lib/gcc/i686-pc-cygwin/3.4.4/collect2.exe --verbose -Bdynamic
--dll-search-prefix=cyg
/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../crt0.o
-L/usr/lib/gcc/i686-pc-cygwin/3.4.4
-L/usr/lib/gcc/i686-pc-cygwin/3.4.4
-L/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../.. test.o -lglut32 -lglu32
-lopengl32 -lgcc -lcygwin -luser32 -lkernel32 -ladvapi32 -lshell32
-lgcc 2>&1 |grep succeed

attempt to open /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../crt0.o succeeded
attempt to open test.o succeeded
attempt to open /usr/lib/w32api/libglut32.a succeeded
attempt to open /usr/lib/w32api/libglu32.a succeeded
attempt to open /usr/lib/w32api/libopengl32.a succeeded
attempt to open /usr/lib/gcc/i686-pc-cygwin/3.4.4/libgcc.a succeeded
attempt to open /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libcygwin.a succeeded
attempt to open /usr/lib/w32api/libuser32.a succeeded
attempt to open /usr/lib/w32api/libkernel32.a succeeded
attempt to open /usr/lib/w32api/libadvapi32.a succeeded
attempt to open /usr/lib/w32api/libshell32.a succeeded
attempt to open /usr/lib/gcc/i686-pc-cygwin/3.4.4/libgcc.a succeeded

Everything looks okay to me here also

-- 
Reini Urban
http://phpwiki.org/              http://murbreak.at/

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