Package: gcc-4.0 Version: 4.0.1-9 Severity: normal Hi
while compiling with different parameters order you get different results: $ gcc -g -L/usr/X11R6/lib/ -lGL -lglut -lGLU -pthread -Wall configure.c -o configure.bin configure.c: In function ‘main’: configure.c:11: warning: assignment discards qualifiers from pointer target type $ ./configure.bin $ gcc -g configure.c -L/usr/X11R6/lib/ -lGL -lglut -lGLU -pthread -Wall -o configure.bin configure.c: In function ‘main’: configure.c:11: warning: assignment discards qualifiers from pointer target type $ ./configure.bin Segmentation fault Note that only source filename has moved from end to beginning and program runs differently (segfault is a code problem). This is taken from configure of Raydium engine [1], problematic file attached to bug report. 1. http://raydium.cqfd-corp.org/ Preprocessed files (*.i) and assembly (*.s) are same in both cases, only difference is how collect2 is called, once (in failing case) resulting object is before GL libs, second time after then. But order should not matter, or am I wrong? I hope I provided enough information. Michal -- System Information: Debian Release: testing/unstable APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/dash Kernel: Linux 2.6.12 Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Versions of packages gcc-4.0 depends on: ii binutils 2.16.1cvs20050902-1 The GNU assembler, linker and bina ii cpp-4.0 4.0.1-9 The GNU C preprocessor ii gcc-4.0-base 4.0.1-9 The GNU Compiler Collection (base ii libc6 2.3.5-6 GNU C Library: Shared libraries an ii libgcc1 1:4.0.1-9 GCC support library Versions of packages gcc-4.0 recommends: ii libc6-dev 2.3.5-6 GNU C Library: Development Librari ii libmudflap0-dev 4.0.1-9 GCC mudflap support libraries (dev -- no debconf information
#include <stdio.h> #include <string.h> #include <GL/glut.h> int main(int argc, char **argv) { char *r; glutInit(&argc,argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH); glutInitWindowSize(320,240); glutCreateWindow("Test window"); r=glGetString(GL_RENDERER); if(!strcmp(r,"Mesa GLX Indirect")) { fprintf(stderr,"WARNING ! Mesa Software renderer detected !"); fprintf(stdout,"WARNING ! Mesa Software renderer detected !"); } return 0; }