New: Internal application no longer builds with latest GIT master

https://bugs.busybox.net/show_bug.cgi?id=11331

Bug ID: 11331
Summary: Internal application no longer builds with latest GIT
master
Product: buildroot
Version: unspecified
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Other
Assignee: unassigned at buildroot.uclibc.org
Reporter: tpearson at raptorengineering.com
CC: buildroot at uclibc.org
Target Milestone: ---

Up until the recent updates (after 2018.08) an internal application using the old setkey()/encrypt() functions was able to compile. With latest master, compilation fails:

/home/buildroot/project/output/host/bin/powerpc64le-buildroot-linux-gnu-gcc
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os
-fstack-protector-all -Wl,-z,relro -D_FORTIFY_SOURCE=2 -fPIC proprietary.o -o
proprietary -lcrypt -lcurl /home/buildroot/project/output/host/lib/gcc/powerpc64le-buildroot-linux-gnu/8.2.0/../../../../powerpc64le-buildroot-linux-gnu/bin/ld:
proprietary.o: in function `legacy_handler':
proprietary.c:(.text+0x1cc30): undefined reference to `setkey' /home/buildroot/project/output/host/lib/gcc/powerpc64le-buildroot-linux-gnu/8.2.0/../../../../powerpc64le-buildroot-linux-gnu/bin/ld:
proprietary.c:(.text+0x1cce4): undefined reference to `encrypt'
collect2: error: ld returned 1 exit status
Makefile:62: recipe for target 'proprietary' failed
make[1]: *** [proprietary] Error 1
make[1]: Leaving directory
'/home/buildroot/project/output/build/proprietary-origin_master/proprietary'
package/pkg-generic.mk:229: recipe for target '/home/buildroot/project/output/build/proprietary-origin_master/.stamp_built'
failed
make: ***
[/home/buildroot/project/output/build/proprietary-origin_master/.stamp_built]
Error 2

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https://bugs.busybox.net/show_bug.cgi?id=11331

Thomas Petazzoni <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

         Resolution|---                         |WONTFIX
             Status|NEW                         |RESOLVED

--- Comment #1 from Thomas Petazzoni <[email protected]> --- This is a decision from glibc upstream, which removed those functions from glibc 2.28. See
https://lists.gnu.org/archive/html/info-gnu/2018-08/msg00000.html, which says:

"""
* The obsolete functions encrypt, encrypt_r, setkey, setkey_r, cbc_crypt, ecb_crypt, and des_setparity are no longer available to newly linked binaries, and the headers <rpc/des_crypt.h> and <rpc/rpc_des.h> are no longer installed. These functions encrypted and decrypted data with the DES block cipher, which is no longer considered secure. Software that still uses these functions should switch to a modern cryptography library, such as libgcrypt.
"""

So, you should fix your application it seems. Buildroot is not going to revert this change, unless you can convince glibc upstream developers to also revert it, which I guess will be challenging.

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https://bugs.busybox.net/show_bug.cgi?id=11331

--- Comment #2 from Timothy Pearson <[email protected]> --- Good to know, thanks! Wasn't able to find documentation supporting that even after some extensive searching.

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