(I'm following Camm in copying gcl-devel; to be honest I'm not sure if
this is debian specific; I _think_ not)
Hi All;
I finally isolated the problem which causes the gcl configure script
in Debian gcl 2.6.7-42 to fail in when run under dpkg-buildpackage.
The problem is the snippet used to test for
personality(ADDR_NO_RANDOMIZE) fails to compile (I tested gcc 4.1,
4.2, and 4.3 on i386) with -Ox, for x>0. For the archives, I include
the snippet below.
void gprof_cleanup() {};
int main(int argc,char *argv[],char *envp[]) {
#include <sys/personality.h>
#include <syscall.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
{
long pers = personality(0xffffffffUL);
if (!(pers & ADDR_NO_RANDOMIZE) && !getenv("GCL_UNRANDOMIZE"))
if (personality(pers | ADDR_NO_RANDOMIZE) != -1 &&
personality(0xffffffffUL) & ADDR_NO_RANDOMIZE) {
int i;
char **n;
for (i=0;envp[i];i++);
n=alloca((i+2)*sizeof(*n));
n[i+1]=0;
n[i--]="GCL_UNRANDOMIZE=t";
for (;i>=0;i--)
n[i]=envp[i];
#ifdef GCL_GPROF
gprof_cleanup();
#endif
execve(*argv,argv,n);
}
}
return 0;}
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