Option `-disable_rseq` seems to be ignored

**Describe the bug**

I compiled dynamo RIO in Ubuntu 24.04, but cannot run even the most trivial example with `drrun`. Here is the log:

```
/dynamorio/build/bin64/drrun -verbose -disable_rseq -- date
INFO: default root: /dynamorio/build/bin64/..
INFO: default toolconfig dir: /dynamorio/build/bin64/../tools
INFO: targeting application: "/usr/bin/date"
INFO: app cmdline: "date"
INFO: configuration directory is "/root/.dynamorio"
INFO: will exec /usr/bin/date

```

It seems that indeed Ubuntu's glibc is executing rseq:

```
strace -e rseq date
--- SIGILL {si_signo=SIGILL, si_code=SI_TKILL, si_pid=39, si_uid=0} ---
rseq(0x7ffc090d25a0, 0x20, 0, 0) = 0
rseq(0x7ffc090d25a0, 0x20, 0x1, 0) = 0
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0xffffffffff600000} ---
rseq(0x7ffc090d2420, 0x20, 0, 0) = 0
rseq(0x7ffc090d2420, 0x20, 0x1, 0) = 0
rseq(0x7fde30668060, 0x20, 0, 0x53053053) = 0
Sat Dec 21 23:34:01 UTC 2024
+++ exited with 0 +++
```

But I would have expected `-disable_rseq` to fix the problem.

**To Reproduce**

Here is the Dockerfile you can use to reproduce the issue:

```
# Use the latest LTS Ubuntu as the base image
FROM ubuntu:24.04

# Set the working directory
WORKDIR /dynamorio

# Install necessary dependencies
RUN apt-get update && apt-get install -y \
cmake \
g++ \
g++-multilib \
doxygen \
git \
zlib1g-dev \
libunwind-dev \
libsnappy-dev \
liblz4-dev

# Clone DynamoRIO repository
RUN git clone --recurse-submodules -j4 https://github.com/DynamoRIO/dynamorio.git .

# Create build directory and build DynamoRIO
RUN mkdir build && cd build && \
cmake .. && \
make -j

# Set the entry point to drrun
ENTRYPOINT ["/dynamorio/build/bin64/drrun"]
```

**Versions**

I tried git master (fa2eaa846937) and precompiled 11.2.0 release. The behavior is the same.