[Bug]: libxml2 tests runtest fail to link: undefined reference to glob/globfree — fix by linking -landroid-glob

[wuxianggujun]

Problem description

Building libxml2 2.15.0 in the Termux builder (aarch64) fails at the tests stage when linking runtest:

ld.lld: error: undefined symbol: glob
ld.lld: error: undefined symbol: globfree
clang: error: linker command failed with exit code 1

On Android, glob(3)/globfree(3) are provided by libandroid-glob, not bionic. With Python bindings/tests enabled, the runtest executable needs to link against -landroid-glob.

Minimal fix that works in practice (recipe-only):

• Add libandroid-glob to TERMUX_PKG_DEPENDS
• Add LDFLAGS+=" -landroid-glob" inside termux_step_configure()

This is sufficient because the current build path propagates LDFLAGS to test linking.

Patch (unified diff):

--- a/packages/libxml2/build.sh
+++ b/packages/libxml2/build.sh
@@
-TERMUX_PKG_DEPENDS="libiconv, libicu, zlib"
+TERMUX_PKG_DEPENDS="libiconv, libicu, zlib, libandroid-glob"
@@
 termux_step_configure() {
+    # Ensure glob/globfree resolve on Android tests
+    LDFLAGS+=" -landroid-glob"
     mkdir -p "$TERMUX_PKG_BUILDDIR/python/doc/xml"
     export TERMUX_MESON_ENABLE_SOVERSION=1
     termux_step_configure_meson
 }

Notes:

• The _XOPEN_SOURCE (600 vs 700) warnings are benign and unrelated.
• If some environments don’t propagate global LDFLAGS to tests, a target-scoped link arg for runtest in src/meson.build would also work, but the above minimal change fixes the issue in the current builder.

What steps will reproduce the bug?

1. (Optional) clean caches/markers:

   rm -rf ~/.termux-build/libxml2* ~/.termux-build/python-libxml2*
   rm -f /data/data/.built-packages/libxml2 /data/data/.built-packages/python-libxml2

2. Build:

   ./build-package.sh -a aarch64 libxml2

3. Observe link error for runtest:

   ld.lld: error: undefined symbol: glob
   ld.lld: error: undefined symbol: globfree
   

What is the expected behavior?

• libxml2 builds successfully on Android, including tests (or tests link without undefined symbols).
• No undefined references to glob/globfree during runtest link.

System information

If reproduced **on device**, paste the output of:


termux-info


If reproduced **only in the Termux package builder**, indicate that here, e.g.:


Not running on device; reproduced in package builder container.

Builder image: ghcr.io/termux/package-builder
Arch: aarch64
Package: libxml2 2.15.0
Python: 3.12 (TERMUX_PKG_SETUP_PYTHON=true; -Dpython=enabled)
Command: ./build-package.sh -a aarch64 libxml2

[TomJo2000]

• Thanks for reporting this, I'll be incorporating your fix into bump(main/libxml2): 2.15.1 #26941

I'm not sure how we haven't run into this issue before.

[wuxianggujun]

• Thanks for reporting this, I'll be incorporating your fix into bump(main/libxml2): 2.15.1 #26941感谢您的反馈，我会将您的修复方案合并到系统中。 bump(main/libxml2): 2.15.1 #26941

I'm not sure how we haven't run into this issue before.我不明白为什么之前我们没遇到过这个问题。

It might be because I was running the scripts\run-docker.ps1 directly on a Windows system, and then running ./scripts/build-bootstraps.sh --architectures aarch64 to build! I initially encountered this libxml2 problem, but I had no choice but to try to fix it myself.

[TomJo2000]

Hmm interesting, we'll need to look into that.
Running on a Windows host shouldn't effect the produced package.

[robertkirkman]

I'm not sure how we haven't run into this issue before.

It might be because I was running the scripts\run-docker.ps1 directly on a Windows system

Not related to Windows. It's prefix pollution libandroid-glob -> libxml2

Not reproducible in clean docker container, but if libxml2 detects glob.h available, it will use it automatically on its own and fail if not passed -landroid-glob.