Hello! Trying to build my project for Open SuSE and my project bdb2d unexpectedly brings error:

Linking...
../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a(db_126_1b8.o): In function `_D10berkeleydb2db2Db6__ctorMFC10berkeleydb5dbenv5DbEnvkZC10berkeleydb2db2Db':
/home/undefer/unDE/unde-code/../../.dub/packages/bdb2d-5.3.28/bdb2d/source/berkeleydb/db.d:68: undefined reference to `db_create'
../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a(dbenv_1a4_1b8.o): In function `_D10berkeleydb5dbenv5DbEnv6__ctorMFkZC10berkeleydb5dbenv5DbEnv':
/home/undefer/unDE/unde-code/../../.dub/packages/bdb2d-5.3.28/bdb2d/source/berkeleydb/dbenv.d:89: undefined reference to `db_env_create'
../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a(dbexception_284_455.o): In function `_D10berkeleydb11dbexception11DbException6__ctorMFAyaiC10berkeleydb5dbenv5DbEnvAyamZC10berkeleydb11dbexception11DbException':
/home/undefer/unDE/unde-code/../../.dub/packages/bdb2d-5.3.28/bdb2d/source/berkeleydb/dbexception.d:161: undefined reference to `db_strerror'
../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a(dbsequence_2a6_3df.o): In function `_D10berkeleydb10dbsequence10DbSequence6__ctorMFC10berkeleydb2db2DbkZC10berkeleydb10dbsequence10DbSequence':
/home/undefer/unDE/unde-code/../../.dub/packages/bdb2d-5.3.28/bdb2d/source/berkeleydb/dbsequence.d:51: undefined reference to `db_sequence_create'
collect2: error: ld returned 1 exit status
--- errorlevel 1
dmd failed with exit code 1.


db_create, db_env_create, db_strerror, db_sequence_create all defined in the project as extern(C) functions; and all it defined as C-functions in external libdb.a library.

The code works under Ubuntu, Linux Mint, Debian, Fedora, but not OpenSuse.

What particulars of building under OpenSuSE?

On Wednesday, January 25, 2017 00:39:40 unDEFER via Digitalmars-d wrote:
> Hello! Trying to build my project for Open SuSE and my project bdb2d unexpectedly brings error:
>
> Linking... ../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.posi x-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a(db_126_1b8.o): In function `_D10berkeleydb2db2Db6__ctorMFC10berkeleydb5dbenv5DbEnvkZC10berkeleydb2db 2Db': /home/undefer/unDE/unde-code/../../.dub/packages/bdb2d-5.3.28/bdb2d/sourc e/berkeleydb/db.d:68: undefined reference to `db_create' ../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.pos ix-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a(dbenv_1a4_1b8. o): In function `_D10berkeleydb5dbenv5DbEnv6__ctorMFkZC10berkeleydb5dbenv5DbEnv': /home/undefer/unDE/unde-code/../../.dub/packages/bdb2d-5.3.28/bdb2d/sourc e/berkeleydb/dbenv.d:89: undefined reference to `db_env_create' ../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.pos ix-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a(dbexception_28 4_455.o): In function `_D10berkeleydb11dbexception11DbException6__ctorMFAyaiC10berkeleydb5dbenv 5DbEnvAyamZC10berkeleydb11dbexception11DbException': /home/undefer/unDE/unde-code/../../.dub/packages/bdb2d-5.3.28/bdb2d/sourc e/berkeleydb/dbexception.d:161: undefined reference to `db_strerror' ../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.pos ix-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a(dbsequence_2a6 _3df.o): In function `_D10berkeleydb10dbsequence10DbSequence6__ctorMFC10berkeleydb2db2DbkZC10b erkeleydb10dbsequence10DbSequence': /home/undefer/unDE/unde-code/../../.dub/packages/bdb2d-5.3.28/bdb2d/sourc e/berkeleydb/dbsequence.d:51: undefined reference to `db_sequence_create' collect2: error: ld returned 1 exit status
> --- errorlevel 1
> dmd failed with exit code 1.
>
>
> db_create, db_env_create, db_strerror, db_sequence_create all defined in the project as extern(C) functions; and all it defined as C-functions in external libdb.a library.
>
> The code works under Ubuntu, Linux Mint, Debian, Fedora, but not OpenSuse.
>
> What particulars of building under OpenSuSE?

My first thought would be that maybe the C library in question isn't actually installed or that you need the dev version of the package installed, and it isn't. If it can't find the symbols, maybe they just aren't currently there. Alternatively, maybe it's not on your library load path - though I would have expected something like that to be installed in /usr/lib, which would definitely be in your library load path.

BTW, questions like this are better suited to the D.Learn newsgroup/forum.

- Jonathan M Davis

So, the problem:
$ cc --version
cc (SUSE Linux) 4.8.3 20140627 [gcc-4_8-branch revision 212064]
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ cc .dub/build/OpenSUSE-debug-linux.posix-x86_64-dmd_2071-186D122990333E297AD7D4BDA72364C7/unde.o -o .dub/build/OpenSUSE-debug-linux.posix-x86_64-dmd_2071-186D122990333E297AD7D4BDA72364C7/unde -g -m64 -Xlinker --no-as-needed -L/usr/local/BerkeleyDB.5.3/lib64/ -lutil -ldb -ldl -L/usr/lib64 -Xlinker --export-dynamic ../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a ../../.dub/packages/derelict-ft-1.1.3/derelict-ft/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-C5461FBF3AF191B3583F388641667679/libDerelictFT.a ../../.dub/packages/derelict-sdl2-2.0.2/derelict-sdl2/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-211F2539A3F0A6356A2312EFBC7AF002/libDerelictSDL2.a ../../.dub/packages/derelict-util-2.0.6/derelict-util/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-DAD1CE5EB4AA073E02604396A45B67FE/libDerelictUtil.a -Xlinker -Bstatic -lphobos2 -Xlinker -Bdynamic -lpthread -lm -lrt -ldl
(with -ldb in the middle) doesn't work

$ cc .dub/build/OpenSUSE-debug-linux.posix-x86_64-dmd_2071-186D122990333E297AD7D4BDA72364C7/unde.o -o .dub/build/OpenSUSE-debug-linux.posix-x86_64-dmd_2071-186D122990333E297AD7D4BDA72364C7/unde -g -m64 -Xlinker --no-as-needed -L/usr/local/BerkeleyDB.5.3/lib64/ -lutil -ldb -ldl -L/usr/lib64 -Xlinker --export-dynamic ../../.dub/packages/bdb2d-5.3.28/bdb2d/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-9E956773380BE684D56F8F1619A72458/libdb.a ../../.dub/packages/derelict-ft-1.1.3/derelict-ft/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-C5461FBF3AF191B3583F388641667679/libDerelictFT.a ../../.dub/packages/derelict-sdl2-2.0.2/derelict-sdl2/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-211F2539A3F0A6356A2312EFBC7AF002/libDerelictSDL2.a ../../.dub/packages/derelict-util-2.0.6/derelict-util/.dub/build/library-debug-linux.posix-x86_64-dmd_2071-DAD1CE5EB4AA073E02604396A45B67FE/libDerelictUtil.a -Xlinker -Bstatic -lphobos2 -Xlinker -Bdynamic -lpthread -lm -lrt -ldl -ldb
(with -ldb at the end) works