Created attachment 465547 [details] a fix for this issue usage of initial-exec prevents valid dlopen of the library later. this works on glibc, because glibc reserves some memory for initial-exec variables in dlopen'd objects. on other libcs, this doesn't work. for instance: $ cat main.c #include <dlfcn.h> #include <stdio.h> int main() { void *h = dlopen("libwebkit2gtk-4.0.so.37", 0); if(!h) { fprintf(stderr, "%s\n", dlerror()); return 1; } return 0; } $ gcc main.c $ ./a.out Error relocating /usr/lib/libwebkit2gtk-4.0.so.37: lroundf: initial-exec TLS resolves to dynamic definition in /usr/lib/libwebkit2gtk-4.0.so.37 $ ldd --version musl libc (x86_64) Version 1.2.3 Dynamic Program Loader Usage: /lib/ld-musl-x86_64.so.1 [options] [--] pathname utilising initial-exec only when __GLIBC__ is defined fixes this.