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Created an attachment (id=442)
change to configure to check for broken libxml

That is the problem:
$ cat main.c
#include <libxml/parser.h>

int main(int argc, char **argv) {
xmlInitParser();
}
$ gcc -static main.c `xml2-config --libs --cflags` -pthread
$ ./a.out
Segmentation fault

One could just disable libxml, when compiling statically.
However the following patch checks this issue.