This error can't give a full installation of glibc, causing an undefined or unwanted result. This's going to be a disaster for any attempt at a complete operating system. Since this error is an installation step, many distros can ignore it, they would not expect there to be a problem in this step, where it only consists of copying files.

The glibc is building from the source code of 2.40 for a Archlinux 32 system.

You must play mariachi music, Russia, or Tetris to read and reproduce this error.

Later of configure and build all the source code, the error begin with this:

COMMAND:
```
make install
```
RESULT:

```
rm -f /src/glibc-2.40/Build/stubs.h
test ! -x /src/glibc-2.40/Build/elf/ldconfig || LC_ALL=C \
  /src/glibc-2.40/Build/elf/ldconfig  \
			/lib /usr/lib
LD_SO=ld-linux.so.2 CC="gcc" /usr/bin/perl scripts/test-installation.pl /src/glibc-2.40/Build/
/usr/bin/ld: cannot find -lnss_dns: No such file or directory
/usr/bin/ld: cannot find -lnss_files: No such file or directory
collect2: error: ld returned 1 exit status
Execution of gcc failed!
The script has found some problems with your installation!
Please read the FAQ and the README file and check the following:
- Did you change the gcc specs file (necessary after upgrading from
  Linux libc5)?
- Are there any symbolic links of the form libXXX.so to old libraries?
  Links like libm.so -> libm.so.5 (where libm.so.5 is an old library) are wrong,
  libm.so should point to the newly installed glibc file - and there should be
  only one such link (check e.g. /lib and /usr/lib)
You should restart this script from your build directory after you've
fixed all problems!
Btw. the script doesn't work if you're installing GNU libc not as your
primary library!
make[1]: *** [Makefile:114: install] Error 1
make[1]: Leaving directory '/src/glibc-2.40'
make: *** [Makefile:12: install] Error 2
```

i try make a 'ln' command for make link files to libnss_dns.so and libnss_files.so from the same two files that have a ".2" in the end of the names.

Run installing again:

COMMAND:
```
make install
```
RESULT:
```
rm -f /src/glibc-2.40/Build/stubs.h
test ! -x /src/glibc-2.40/Build/elf/ldconfig || LC_ALL=C \
  /src/glibc-2.40/Build/elf/ldconfig  \
			/lib /usr/lib
LD_SO=ld-linux.so.2 CC="gcc" /usr/bin/perl scripts/test-installation.pl /src/glibc-2.40/Build/
LINE OUT: ldd /src/glibc-2.40/Build//test-prg9595

Library libnsl is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libnsl.so.3 => /lib/libnsl.so.3

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 16.
Library libtirpc is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libtirpc.so.3 => /lib/libtirpc.so.3

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 17.
Library libgssapi_krb5 is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libgssapi_krb5.so.2 => /lib/libgssapi_krb5.so.2

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 18.
Library libkrb5 is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libkrb5.so.3 => /lib/libkrb5.so.3

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 19.
Library libk5crypto is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libk5crypto.so.3 => /lib/libk5crypto.so.3

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 20.
Library libcom_err is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libcom_err.so.2 => /lib/libcom_err.so.2

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 21.
Library libkrb5support is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libkrb5support.so.0 => /lib/libkrb5support.so.0

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 22.
Library libkeyutils is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libkeyutils.so.1 => /lib/libkeyutils.so.1

Library librt is not correctly installed since the test program
was not linked dynamically against it.
Do you have a file/link librt.so?
Library libdl is not correctly installed since the test program
was not linked dynamically against it.
Do you have a file/link libdl.so?
Library libutil is not correctly installed since the test program
was not linked dynamically against it.
Do you have a file/link libutil.so?
Library libpthread is not correctly installed since the test program
was not linked dynamically against it.
Do you have a file/link libpthread.so?
The script has found some problems with your installation!
Please read the FAQ and the README file and check the following:
- Did you change the gcc specs file (necessary after upgrading from
  Linux libc5)?
- Are there any symbolic links of the form libXXX.so to old libraries?
  Links like libm.so -> libm.so.5 (where libm.so.5 is an old library) are wrong,
  libm.so should point to the newly installed glibc file - and there should be
  only one such link (check e.g. /lib and /usr/lib)
You should restart this script from your build directory after you've
fixed all problems!
Btw. the script doesn't work if you're installing GNU libc not as your
primary library!
make[1]: *** [Makefile:114: install] Error 1
make[1]: Leaving directory '/src/glibc-2.40'
make: *** [Makefile:12: install] Error 2
```

I make again a linking for librt.so, libdl.so, libutil.so, and libpthread.so, to in the same libraries with a number version in the end of the names.

Run installing again:

COMMAND:
```
make install
```
RESULT:
```
rm -f /src/glibc-2.40/Build/stubs.h
test ! -x /src/glibc-2.40/Build/elf/ldconfig || LC_ALL=C \
  /src/glibc-2.40/Build/elf/ldconfig  \
			/lib /usr/lib
LD_SO=ld-linux.so.2 CC="gcc" /usr/bin/perl scripts/test-installation.pl /src/glibc-2.40/Build/
LINE OUT: ldd /src/glibc-2.40/Build//test-prg12800

Library libnsl is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libnsl.so.3 => /lib/libnsl.so.3

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 20.
Library libtirpc is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libtirpc.so.3 => /lib/libtirpc.so.3

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 21.
Library libgssapi_krb5 is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libgssapi_krb5.so.2 => /lib/libgssapi_krb5.so.2

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 22.
Library libkrb5 is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libkrb5.so.3 => /lib/libkrb5.so.3

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 23.
Library libk5crypto is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libk5crypto.so.3 => /lib/libk5crypto.so.3

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 24.
Library libcom_err is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libcom_err.so.2 => /lib/libcom_err.so.2

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 25.
Library libkrb5support is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libkrb5support.so.0 => /lib/libkrb5support.so.0

Use of uninitialized value in string ne at scripts/test-installation.pl line 183, <LDD> line 26.
Library libkeyutils is not correctly installed.
Please check your installation!
Offending line of ldd output: 	libkeyutils.so.1 => /lib/libkeyutils.so.1

The script has found some problems with your installation!
Please read the FAQ and the README file and check the following:
- Did you change the gcc specs file (necessary after upgrading from
  Linux libc5)?
- Are there any symbolic links of the form libXXX.so to old libraries?
  Links like libm.so -> libm.so.5 (where libm.so.5 is an old library) are wrong,
  libm.so should point to the newly installed glibc file - and there should be
  only one such link (check e.g. /lib and /usr/lib)
You should restart this script from your build directory after you've
fixed all problems!
Btw. the script doesn't work if you're installing GNU libc not as your
primary library!
make[1]: *** [Makefile:114: install] Error 1
make[1]: Leaving directory '/src/glibc-2.40'
make: *** [Makefile:12: install] Error 2
```

The last of 8 libraries is correct installed. I add the "LINE OUT:" output in the script of perl for find the error, where run "ldd /src/glibc-2.40/Build//test-prg12800" all are correct, all the output is correct:

```
	linux-gate.so.1
	libc.so.6 => /lib/libc.so.6
	libBrokenLocale.so.1 => /lib/libBrokenLocale.so.1
	libpthread.so.0 => /lib/libpthread.so.0
	libdl.so.2 => /lib/libdl.so.2
	libgcc_s.so.1 => /lib/libgcc_s.so.1
	libnsl.so.3 => /lib/libnsl.so.3
	libc_malloc_debug.so.0 => /lib/libc_malloc_debug.so.0
	libutil.so.1 => /lib/libutil.so.1
	libnss_dns.so.2 => /lib/libnss_dns.so.2
	libnss_compat.so.2 => /lib/libnss_compat.so.2
	libresolv.so.2 => /lib/libresolv.so.2
	libnss_db.so.2 => /lib/libnss_db.so.2
	libm.so.6 => /lib/libm.so.6
	libnss_files.so.2 => /lib/libnss_files.so.2
	librt.so.1 => /lib/librt.so.1
	libnss_hesiod.so.2 => /lib/libnss_hesiod.so.2
	libanl.so.1 => /lib/libanl.so.1
	/lib/ld-linux.so.2
	libtirpc.so.3 => /lib/libtirpc.so.3
	libgssapi_krb5.so.2 => /lib/libgssapi_krb5.so.2
	libkrb5.so.3 => /lib/libkrb5.so.3
	libk5crypto.so.3 => /lib/libk5crypto.so.3
	libcom_err.so.2 => /lib/libcom_err.so.2
	libkrb5support.so.0 => /lib/libkrb5support.so.0
	libkeyutils.so.1 => /lib/libkeyutils.so.1
```

This's a very wrong bug from the script of perl, like can't detect a library with or without the number version, and can't detect the libraries that already exist in the system directory.
The perl script need urgent a fix.