Compiling with FLB_OUT_KAFKA with only Static Libs

[lioncubs]

Has anyone attempted to build with FLB_OUT_KAFKA with only Static Libs?
When Configured without FLB_OUT_KAFKA, I can compile a static only binary (ubuntu linux).

The following compile config + build works to produce an exclusively static executable:

cmake -DFLB_BINARY=On \
          -DFLB_DEBUG=Off \
          -DFLB_RELEASE=On \
          -DFLB_TRACE=Off \
          -DFLB_JEMALLOC=On \
          -DFLB_TLS=On \
          -DFLB_SHARED_LIB=Off \
          -DFLB_EXAMPLES=Off \
          -DFLB_HTTP_SERVER=On \
          -DFLB_IN_EXEC=Off \
          -DFLB_IN_SYSTEMD=Off \
          -DFLB_OUT_KAFKA=Off \
          -DFLB_OUT_PGSQL=Off \
          -DFLB_LUAJIT=Off \
          -DFLB_LOG_NO_CONTROL_CHARS=On \
          -DFLB_CHUNK_TRACE=On \
          -DFLB_CONFIG_YAML=Off \
          -DFLB_WASM=Off \
          -DFLB_WINDOWS_DEFAULTS=Off \
          -DFLB_METRICS=On \
          -DFLB_BACKTRACE=Off  \
          -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" \
          -DBUILD_SHARED_LIBS=Off \
          -DCMAKE_EXE_LINKER_FLAGS="-static" \
          -DOPENSSL_USE_STATIC_LIBS=On \
          -DCMAKE_C_FLAGS="-fcommon" \
          .. \
          && make -j $(getconf _NPROCESSORS_ONLN)

This works, and we can validate it validat it with:

readelf -d bin/fluent-bit

There is no dynamic section in this file.

Adding the config for -DFLB_OUT_KAFKA=On, will not compile Unless we compile with-out -DCMAKE_EXE_LINKER_FLAGS="-static" .

If I've installed all dependency libs, the application is not exclusively static

IE:

cmake -DFLB_BINARY=On \
          -DFLB_DEBUG=Off \
          -DFLB_RELEASE=On \
          -DFLB_TRACE=Off \
          -DFLB_JEMALLOC=On \
          -DFLB_TLS=On \
          -DFLB_SHARED_LIB=Off \
          -DFLB_EXAMPLES=Off \
          -DFLB_HTTP_SERVER=On \
          -DFLB_IN_EXEC=Off \
          -DFLB_IN_SYSTEMD=Off \
          -DFLB_OUT_KAFKA=On \
          -DFLB_OUT_PGSQL=Off \
          -DFLB_LUAJIT=Off \
          -DFLB_LOG_NO_CONTROL_CHARS=On \
          -DFLB_CHUNK_TRACE=On \
          -DFLB_CONFIG_YAML=Off \
          -DFLB_WASM=Off \
          -DFLB_WINDOWS_DEFAULTS=Off \
          -DFLB_METRICS=On \
          -DFLB_BACKTRACE=Off  \
          -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" \
          -DBUILD_SHARED_LIBS=Off \
          -DOPENSSL_USE_STATIC_LIBS=Off \
          -DCMAKE_C_FLAGS="-fcommon" \
          .. \
          && make -j $(getconf _NPROCESSORS_ONLN)

Does not create a static only binary.

/tmp/fluent-bit/build# readelf -d bin/fluent-bit

Dynamic section at offset 0x5c7c58 contains 34 entries:
  Tag        Type                         Name/Value
 0x0000000000000001 (NEEDED)             Shared library: [libpthread.so.0]
 0x0000000000000001 (NEEDED)             Shared library: [libm.so.6]
 0x0000000000000001 (NEEDED)             Shared library: [libssl.so.1.1]
 0x0000000000000001 (NEEDED)             Shared library: [libcrypto.so.1.1]
 0x0000000000000001 (NEEDED)             Shared library: [libz.so.1]
 0x0000000000000001 (NEEDED)             Shared library: [libsasl2.so.2]
 0x0000000000000001 (NEEDED)             Shared library: [libdl.so.2]
 0x0000000000000001 (NEEDED)             Shared library: [libc.so.6]
 0x0000000000000001 (NEEDED)             Shared library: [ld-linux-x86-64.so.2]
 0x000000000000000c (INIT)               0x7a000
 0x000000000000000d (FINI)               0x431fd0
 0x0000000000000019 (INIT_ARRAY)         0x59ec70
 0x000000000000001b (INIT_ARRAYSZ)       8 (bytes)
 0x000000000000001a (FINI_ARRAY)         0x59ec78
 0x000000000000001c (FINI_ARRAYSZ)       8 (bytes)
 0x000000006ffffef5 (GNU_HASH)           0x340
 0x0000000000000005 (STRTAB)             0x29a38
 0x0000000000000006 (SYMTAB)             0xa0b8
 0x000000000000000a (STRSZ)              129123 (bytes)
 0x000000000000000b (SYMENT)             24 (bytes)
 0x0000000000000015 (DEBUG)              0x0
 0x0000000000000003 (PLTGOT)             0x5c9000
 0x0000000000000002 (PLTRELSZ)           10560 (bytes)
 0x0000000000000014 (PLTREL)             RELA
 0x0000000000000017 (JMPREL)             0x76f20
 0x0000000000000007 (RELA)               0x4bf00
 0x0000000000000008 (RELASZ)             176160 (bytes)
 0x0000000000000009 (RELAENT)            24 (bytes)
 0x000000006ffffffb (FLAGS_1)            Flags: PIE
 0x000000006ffffffe (VERNEED)            0x4bcc0
 0x000000006fffffff (VERNEEDNUM)         9
 0x000000006ffffff0 (VERSYM)             0x4929c
 0x000000006ffffff9 (RELACOUNT)          7272
 0x0000000000000000 (NULL)               0x0
/tmp/fluent-bit/build# 

All other options to set the specific static version of the lib *.a files also doesn't even link.

cmake -DFLB_BINARY=On \
          -DFLB_DEBUG=Off \
          -DFLB_RELEASE=On \
          -DFLB_TRACE=Off \
          -DFLB_JEMALLOC=On \
          -DFLB_TLS=On \
          -DFLB_SHARED_LIB=Off \
          -DFLB_EXAMPLES=Off \
          -DFLB_HTTP_SERVER=On \
          -DFLB_IN_EXEC=Off \
          -DFLB_IN_SYSTEMD=Off \
          -DFLB_OUT_KAFKA=On \
          -DFLB_OUT_PGSQL=Off \
          -DFLB_LUAJIT=Off \
          -DFLB_LOG_NO_CONTROL_CHARS=On \
          -DFLB_CHUNK_TRACE=On \
          -DFLB_CONFIG_YAML=Off \
          -DFLB_WASM=Off \
          -DFLB_WINDOWS_DEFAULTS=Off \
          -DFLB_METRICS=On \
          -DFLB_BACKTRACE=Off  \
          -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" \
          -DBUILD_SHARED_LIBS=Off \
          -DZLIB_LIBRARY=/usr/lib/x86_64-linux-gnu/libz.a \
          -DPostgreSQL_LIBRARY=/usr/lib/x86_64-linux-gnu/libpq.a \
          -DCMAKE_EXE_LINKER_FLAGS="-static-libgcc -static-libstdc++ -static" \
          -DOPENSSL_USE_STATIC_LIBS=On \
          -DCMAKE_C_FLAGS="-fcommon" \
          -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON \
          .. \
          && make -j $(getconf _NPROCESSORS_ONLN)

Attached last config output and build output files

Anybody have any luck or even tried compiling fluent-bit with KAFKA output only static?

config_output.txt
build_output.txt