安装 krb5 时获得的未定义引用@ rb_ maybe_init@ GLIBC_ PRIVATE
原标题：undefined reference to `__res_maybe_init@GLIBC_PRIVATE got while installing krb5
During installing krb5 via brew install krb5, got this error:
gcc-14 -L../../lib -Wl,--enable-new-dtags -Wl,-rpath -Wl,~/opt/brew/Cellar/krb5/1.21.3/lib -g -O2 -DHAVE_CONFIG_H -I../../include -I../../include -DKRB5_DEPRECATED=1 -DKRB5_PRIVATE -g -O2 -Wall -Wcast-align -Wshadow -Wmissing-prototypes -Wno-format-zero-length -Woverflow -Wstrict-overflow
-Wmissing-format-attribute -Wmissing-prototypes -Wreturn-type -Wmissing-braces -Wparentheses -Wswitch -Wunused-function -Wunused-label -Wunused-variable -Wunused-value -Wunknown-pragmas -Wsign-compare -Werror=uninitialized -Wno-maybe-uninitialized -Werror=pointer-arith -Werror=int-conversion -Werror=incompatible-poin
ter-types -Werror=discarded-qualifiers -Werror=implicit-int -Werror=declaration-after-statement -Werror-implicit-function-declaration -pthread -o test_getpw test_getpw.o -lkrb5support
~/opt/brew/opt/binutils/bin/ld: /lib/x86_64-linux-gnu/libresolv.so.2: undefined reference to `__res_maybe_init@GLIBC_PRIVATE
when I check the /lib/x86_64-linux-gnu/libresolv.so.2, there is indeed such a symbol __res_maybe_init@GLIBC_PRIVATE:
nm -D --with-symbol-versions /lib/x86_64-linux-gnu/libresolv.so.2 | grep __res_maybe_init
U __res_maybe_init@GLIBC_PRIVATE
Further more, I tried to list shared library dependencies of /lib/x86_64-linux-gnu/libresolv.so.2
$ ldd --verbose libresolv.so.2
linux-vdso.so.1 (0x00007ffc5f106000)
libc.so.6 (0x00007f03328cc000)
/lib64/ld-linux-x86-64.so.2 (0x00007f0332e82000)
Version information:
./libresolv.so.2:
libc.so.6 (GLIBC_2.14) => libc.so.6
libc.so.6 (GLIBC_2.4) => libc.so.6
libc.so.6 (GLIBC_PRIVATE) => libc.so.6
libc.so.6 (GLIBC_2.2.5) => libc.so.6
libc.so.6 (GLIBC_2.3) => libc.so.6
libc.so.6:
ld-linux-x86-64.so.2 (GLIBC_2.3) => /lib64/ld-linux-x86-64.so.2
ld-linux-x86-64.so.2 (GLIBC_PRIVATE) => /lib64/ld-linux-x86-64.so.2
$ env | grep LD_LIBRARY_PATH
LD_LIBRARY_PATH=~/opt/brew/opt/binutils/lib:~/opt/brew/lib:~/opt/brew/opt/glibc/lib:
$ find ~/opt/brew/opt/glibc/lib -name "*libc.so*"
~/opt/brew/opt/glibc/lib/libc.so
~/opt/brew/opt/glibc/lib/libc.so.6
I think libresolv.so is supposed to depend on my own glibc under ~/opt/brew/opt/glibc/lib/libc.so.6, but I don t know how to fix it
$ ls ~/opt/brew/opt/glibc/lib | grep -e resolv
libresolv.a
libresolv.so
libresolv.so.2
$ ls /lib/x86_64-linux-gnu | grep -e resolv
libresolv-2.24.so
libresolv.so.2
Any ideas else i can try?
问题回答
Any ideas else i can try?
You are mixing different and mis-matching builds of GLIBC (libc.so.6 and libresolv.so.2 are both parts of GLIBC, and must come from the same build).
Further, you build is very unlikely to work, for reasons explained here.
If you are unwilling to use the system GLIBC, you must
Get a complete set of GLIBC libraries under ~/opt/brew/opt/glibc/lib (including libresolv.so.2 and all the other parts), and
Set the dynamic loader to ~/opt/brew/opt/glibc/lib/ld-linux-x86-64.so.2 (as explained in the linked answer).
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