[Bug]: packaging: ac_cv_func_getpw{nam,uid} being set to no while available

[xtkoba]

Problem description

Currently Autoconf cache variables ac_cv_func_getpw{nam,uid} are set to no:

termux-packages/scripts/build/toolchain/termux_setup_toolchain_23c.sh

Lines 106 to 107 in c3efe1d

	export ac_cv_func_getpwnam=no
	export ac_cv_func_getpwuid=no

which seemingly contradicts NDK patch for pwd.h that defines getpw{nam,uid}:

termux-packages/ndk-patches/23c/pwd.h.patch

Lines 55 to 56 in c3efe1d

	+#define getpwnam android_polyfill_getpwnam
	+#define getpwuid android_polyfill_getpwuid

Is this intentional?

I noticed this because this affects the build of libcurl (more precisely only curl subpackage) with clang16-porting. The configure script of libcurl tries to check deeper for getpwuid by means of linking against libc without declaration (just like fget{c,s}_unlocked for mutt package: e95d6a8), which succeeds without clang16-porting but fails with it.

What steps will reproduce the bug?

Maybe build some package that depends on ac_cv_func_getpw{nam,uid}.

What is the expected behavior?

Maybe ac_cv_func_getpw{nam,uid} should be set to yes.

System information

Irrelevant.