Symbol Resolution Errors in Dynamic Library Build Using CEF Dependency

[pedroleal11]

Describe the bug I created a lib that uses CEF as a dependency (via binary), which will be used to create rust bindings. So in order to achieve that, our lib has to be dynamic (which is causing problems) and not static as used in cef-project examples (e.g. minimal). When I build my lib as static, all my test demos work, however when running as dynamic, I get symbol errors from libcef.so (localtime, localtime64, localtime_r, localtime64_r) and consequently, my demos don`t work as expected.

To Reproduce Steps to reproduce the behavior: In CMakeLists.txt I defined my lib:

add_library(${SHARED_TARGET} SHARED ${cef_buffer_lib_source_files})
add_dependencies(${SHARED_TARGET} libcef_dll_wrapper)
target_link_libraries(${SHARED_TARGET} libcef_lib ${LIBCEF_DLL_WRAPPER} ${CEF_STANDARD_LIBS})```

My demos use only this lib (libcef_buffer_lib.so). When running the command ```ldd ./cef_demo``` I get the following dependencies:

        ```linux-vdso.so.1 (0x00007ffc6279e000)
        libcef_buffer_lib.so => /workspaces/cef-lib/build/Debug/Debug/libcef_buffer_lib.so (0x000070997ed1f000)
        libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x000070997eaeb000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x000070997eacb000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x000070997e8a2000)
        libcef.so => /workspaces/cef-lib/build/Debug/Debug/libcef.so (0x0000709971200000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x0000709971119000)
        /lib64/ld-linux-x86-64.so.2 (0x000070997ee60000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x000070997e89b000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x000070997e896000)
        libgobject-2.0.so.0 => /lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x000070997e836000)
        libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x0000709970fdf000)
        libnss3.so => /lib/x86_64-linux-gnu/libnss3.so (0x0000709970eae000)
        libnssutil3.so => /lib/x86_64-linux-gnu/libnssutil3.so (0x0000709970e7b000)
        libsmime3.so => /lib/x86_64-linux-gnu/libsmime3.so (0x000070997e80a000)
        libnspr4.so => /lib/x86_64-linux-gnu/libnspr4.so (0x0000709970e3b000)
        libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x0000709970ded000)
        libatk-1.0.so.0 => /lib/x86_64-linux-gnu/libatk-1.0.so.0 (0x0000709970dc3000)
        libatk-bridge-2.0.so.0 => /lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0 (0x0000709970d8b000)
        libcups.so.2 => /lib/x86_64-linux-gnu/libcups.so.2 (0x0000709970ceb000)
        libdrm.so.2 => /lib/x86_64-linux-gnu/libdrm.so.2 (0x0000709970cd5000)
        libgio-2.0.so.0 => /lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x0000709970afb000)
        libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007099709bb000)
        libXcomposite.so.1 => /lib/x86_64-linux-gnu/libXcomposite.so.1 (0x00007099709b6000)
        libXdamage.so.1 => /lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007099709b1000)
        libXext.so.6 => /lib/x86_64-linux-gnu/libXext.so.6 (0x000070997099a000)
        libXfixes.so.3 => /lib/x86_64-linux-gnu/libXfixes.so.3 (0x0000709970992000)
        libXrandr.so.2 => /lib/x86_64-linux-gnu/libXrandr.so.2 (0x0000709970985000)
        libgbm.so.1 => /lib/x86_64-linux-gnu/libgbm.so.1 (0x0000709970974000)
        libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x0000709970943000)
        libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x0000709970919000)
        libxkbcommon.so.0 => /lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007099708d0000)
        libpango-1.0.so.0 => /lib/x86_64-linux-gnu/libpango-1.0.so.0 (0x0000709970869000)
        libcairo.so.2 => /lib/x86_64-linux-gnu/libcairo.so.2 (0x0000709970741000)
        libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 (0x0000709970717000)
        libasound.so.2 => /lib/x86_64-linux-gnu/libasound.so.2 (0x0000709970614000)
        libatspi.so.0 => /lib/x86_64-linux-gnu/libatspi.so.0 (0x00007099705da000)
        libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8 (0x00007099705cb000)
        libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x0000709970555000)
        libplc4.so => /lib/x86_64-linux-gnu/libplc4.so (0x000070997054e000)
        libplds4.so => /lib/x86_64-linux-gnu/libplds4.so (0x0000709970549000)
        libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x0000709970482000)
        libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x000070997042c000)
        libavahi-common.so.3 => /lib/x86_64-linux-gnu/libavahi-common.so.3 (0x000070997041e000)
        libavahi-client.so.3 => /lib/x86_64-linux-gnu/libavahi-client.so.3 (0x000070997040a000)
        libgnutls.so.30 => /lib/x86_64-linux-gnu/libgnutls.so.30 (0x000070997021f000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x0000709970203000)
        libgmodule-2.0.so.0 => /lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007099701fc000)
        libmount.so.1 => /lib/x86_64-linux-gnu/libmount.so.1 (0x00007099701b6000)
        libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x000070997018a000)
        libXrender.so.1 => /lib/x86_64-linux-gnu/libXrender.so.1 (0x000070997017d000)
        libwayland-server.so.0 => /lib/x86_64-linux-gnu/libwayland-server.so.0 (0x0000709970167000)
        libxcb-randr.so.0 => /lib/x86_64-linux-gnu/libxcb-randr.so.0 (0x0000709970154000)
        libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x000070997014c000)
        libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x0000709970144000)
        libfribidi.so.0 => /lib/x86_64-linux-gnu/libfribidi.so.0 (0x0000709970128000)
        libthai.so.0 => /lib/x86_64-linux-gnu/libthai.so.0 (0x000070997011d000)
        libharfbuzz.so.0 => /lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x000070997004e000)
        libpixman-1.so.0 => /lib/x86_64-linux-gnu/libpixman-1.so.0 (0x000070996ffa3000)
        libfontconfig.so.1 => /lib/x86_64-linux-gnu/libfontconfig.so.1 (0x000070996ff57000)
        libfreetype.so.6 => /lib/x86_64-linux-gnu/libfreetype.so.6 (0x000070996fe8f000)
        libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x000070996fe54000)
        libxcb-shm.so.0 => /lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x000070996fe4f000)
        libxcb-render.so.0 => /lib/x86_64-linux-gnu/libxcb-render.so.0 (0x000070996fe40000)
        libXi.so.6 => /lib/x86_64-linux-gnu/libXi.so.6 (0x000070996fe2a000)
        liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x000070996fdff000)
        libzstd.so.1 => /lib/x86_64-linux-gnu/libzstd.so.1 (0x000070996fd30000)
        liblz4.so.1 => /lib/x86_64-linux-gnu/liblz4.so.1 (0x000070996fd10000)
        libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2 (0x000070996fd05000)
        libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x000070996fbc7000)
        libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 (0x000070996fafa000)
        libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 (0x000070996facb000)
        libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x000070996fac5000)
        libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 (0x000070996fab7000)
        libp11-kit.so.0 => /lib/x86_64-linux-gnu/libp11-kit.so.0 (0x000070996f97c000)
        libidn2.so.0 => /lib/x86_64-linux-gnu/libidn2.so.0 (0x000070996f95b000)
        libunistring.so.2 => /lib/x86_64-linux-gnu/libunistring.so.2 (0x000070996f7af000)
        libtasn1.so.6 => /lib/x86_64-linux-gnu/libtasn1.so.6 (0x000070996f797000)
        libnettle.so.8 => /lib/x86_64-linux-gnu/libnettle.so.8 (0x000070996f751000)
        libhogweed.so.6 => /lib/x86_64-linux-gnu/libhogweed.so.6 (0x000070996f709000)
        libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x000070996f687000)
        libblkid.so.1 => /lib/x86_64-linux-gnu/libblkid.so.1 (0x000070996f650000)
        libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x000070996f5b7000)
        libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x000070996f59f000)
        libdatrie.so.1 => /lib/x86_64-linux-gnu/libdatrie.so.1 (0x000070996f596000)
        libgraphite2.so.3 => /lib/x86_64-linux-gnu/libgraphite2.so.3 (0x000070996f56f000)
        libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x000070996f566000)
        libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x000070996f556000)
        libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x000070996f530000)
        libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x000070996f529000)
        libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x000070996f515000)
        libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 (0x000070996f508000)
        libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x000070996f4e3000)```

On another hand, when running ```LD_DEBUG=libs ./cef_demo``` I get the following symbol errors:

```    66798:     /workspaces/cef-lib/build/Debug/Debug/libcef.so: error: symbol lookup error: undefined symbol: localtime (fatal)
     66798:     /workspaces/cef-lib/build/Debug/Debug/libcef.so: error: symbol lookup error: undefined symbol: localtime64 (fatal)
     66798:     /workspaces/cef-lib/build/Debug/Debug/libcef.so: error: symbol lookup error: undefined symbol: localtime_r (fatal)
     66798:     /workspaces/cef-lib/build/Debug/Debug/libcef.so: error: symbol lookup error: undefined symbol: localtime64_r (fatal)```

Either libs (when built as static or shared) have the same lib`s dependency paths.    

**Expected behavior**
libcef.so can be dynamically loaded into my demos.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Versions (please complete the following information):**
 - OS: [Ubuntu 24.04.1]
 - CEF Version: [130.1.16]

**Additional context**
Add any other context about the problem here.

[magreenblatt]

when running as dynamic, I get symbol errors from libcef.so (localtime, localtime64, localtime_r, localtime64_r)

These functions are part of the Standard C library (libc). What does ldd show for libcef.so?

[pedroleal11]

This is its output (ldd ./libcef.so):

    linux-vdso.so.1 (0x00007ffef855c000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007ced8b709000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007ced8b704000)
    libgobject-2.0.so.0 => /lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007ced8b6a4000)
    libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007ced7dec6000)
    libnss3.so => /lib/x86_64-linux-gnu/libnss3.so (0x00007ced7dd95000)
    libnssutil3.so => /lib/x86_64-linux-gnu/libnssutil3.so (0x00007ced8b66f000)
    libsmime3.so => /lib/x86_64-linux-gnu/libsmime3.so (0x00007ced8b645000)
    libnspr4.so => /lib/x86_64-linux-gnu/libnspr4.so (0x00007ced7dd55000)
    libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007ced7dd07000)
    libatk-1.0.so.0 => /lib/x86_64-linux-gnu/libatk-1.0.so.0 (0x00007ced8b61b000)
    libatk-bridge-2.0.so.0 => /lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0 (0x00007ced7dccf000)
    libcups.so.2 => /lib/x86_64-linux-gnu/libcups.so.2 (0x00007ced7dc31000)
    libdrm.so.2 => /lib/x86_64-linux-gnu/libdrm.so.2 (0x00007ced7dc1b000)
    libgio-2.0.so.0 => /lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x00007ced7da41000)
    libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007ced7d901000)
    libXcomposite.so.1 => /lib/x86_64-linux-gnu/libXcomposite.so.1 (0x00007ced8b614000)
    libXdamage.so.1 => /lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007ced8b60f000)
    libXext.so.6 => /lib/x86_64-linux-gnu/libXext.so.6 (0x00007ced7d8ec000)
    libXfixes.so.3 => /lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007ced7d8e4000)
    libXrandr.so.2 => /lib/x86_64-linux-gnu/libXrandr.so.2 (0x00007ced7d8d7000)
    libgbm.so.1 => /lib/x86_64-linux-gnu/libgbm.so.1 (0x00007ced7d8c6000)
    libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007ced7d895000)
    libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x00007ced7d86b000)
    libxkbcommon.so.0 => /lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007ced7d824000)
    libpango-1.0.so.0 => /lib/x86_64-linux-gnu/libpango-1.0.so.0 (0x00007ced7d7bd000)
    libcairo.so.2 => /lib/x86_64-linux-gnu/libcairo.so.2 (0x00007ced7d695000)
    libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 (0x00007ced7d66b000)
    libasound.so.2 => /lib/x86_64-linux-gnu/libasound.so.2 (0x00007ced7d568000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007ced7d481000)
    libatspi.so.0 => /lib/x86_64-linux-gnu/libatspi.so.0 (0x00007ced7d445000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007ced7d425000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007ced7d1fc000)
    /lib64/ld-linux-x86-64.so.2 (0x00007ced8b718000)
    libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8 (0x00007ced7d1ef000)
    libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007ced7d179000)
    libplc4.so => /lib/x86_64-linux-gnu/libplc4.so (0x00007ced7d172000)
    libplds4.so => /lib/x86_64-linux-gnu/libplds4.so (0x00007ced7d16b000)
    libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007ced7d0a4000)
    libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007ced7d050000)
    libavahi-common.so.3 => /lib/x86_64-linux-gnu/libavahi-common.so.3 (0x00007ced7d042000)
    libavahi-client.so.3 => /lib/x86_64-linux-gnu/libavahi-client.so.3 (0x00007ced7d02e000)
    libgnutls.so.30 => /lib/x86_64-linux-gnu/libgnutls.so.30 (0x00007ced7ce41000)
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007ced7ce25000)
    libgmodule-2.0.so.0 => /lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007ced7ce1e000)
    libmount.so.1 => /lib/x86_64-linux-gnu/libmount.so.1 (0x00007ced7cdda000)
    libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007ced7cdae000)
    libXrender.so.1 => /lib/x86_64-linux-gnu/libXrender.so.1 (0x00007ced7cd9f000)
    libwayland-server.so.0 => /lib/x86_64-linux-gnu/libwayland-server.so.0 (0x00007ced7cd89000)
    libxcb-randr.so.0 => /lib/x86_64-linux-gnu/libxcb-randr.so.0 (0x00007ced7cd76000)
    libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x00007ced7cd70000)
    libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007ced7cd68000)
    libfribidi.so.0 => /lib/x86_64-linux-gnu/libfribidi.so.0 (0x00007ced7cd4a000)
    libthai.so.0 => /lib/x86_64-linux-gnu/libthai.so.0 (0x00007ced7cd3f000)
    libharfbuzz.so.0 => /lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x00007ced7cc70000)
    libpixman-1.so.0 => /lib/x86_64-linux-gnu/libpixman-1.so.0 (0x00007ced7cbc5000)
    libfontconfig.so.1 => /lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007ced7cb7b000)
    libfreetype.so.6 => /lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007ced7cab3000)
    libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x00007ced7ca78000)
    libxcb-shm.so.0 => /lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x00007ced7ca71000)
    libxcb-render.so.0 => /lib/x86_64-linux-gnu/libxcb-render.so.0 (0x00007ced7ca62000)
    libXi.so.6 => /lib/x86_64-linux-gnu/libXi.so.6 (0x00007ced7ca4e000)
    liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007ced7ca23000)
    libzstd.so.1 => /lib/x86_64-linux-gnu/libzstd.so.1 (0x00007ced7c954000)
    liblz4.so.1 => /lib/x86_64-linux-gnu/liblz4.so.1 (0x00007ced7c932000)
    libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2 (0x00007ced7c927000)
    libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007ced7c7e9000)
    libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007ced7c71e000)
    libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007ced7c6ef000)
    libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007ced7c6e9000)
    libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007ced7c6d9000)
    libp11-kit.so.0 => /lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007ced7c59e000)
    libidn2.so.0 => /lib/x86_64-linux-gnu/libidn2.so.0 (0x00007ced7c57d000)
    libunistring.so.2 => /lib/x86_64-linux-gnu/libunistring.so.2 (0x00007ced7c3d3000)
    libtasn1.so.6 => /lib/x86_64-linux-gnu/libtasn1.so.6 (0x00007ced7c3bb000)
    libnettle.so.8 => /lib/x86_64-linux-gnu/libnettle.so.8 (0x00007ced7c375000)
    libhogweed.so.6 => /lib/x86_64-linux-gnu/libhogweed.so.6 (0x00007ced7c32b000)
    libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x00007ced7c2a9000)
    libblkid.so.1 => /lib/x86_64-linux-gnu/libblkid.so.1 (0x00007ced7c272000)
    libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x00007ced7c1db000)
    libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007ced7c1c3000)
    libdatrie.so.1 => /lib/x86_64-linux-gnu/libdatrie.so.1 (0x00007ced7c1b8000)
    libgraphite2.so.3 => /lib/x86_64-linux-gnu/libgraphite2.so.3 (0x00007ced7c191000)
    libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007ced7c188000)
    libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x00007ced7c17a000)
    libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007ced7c154000)
    libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007ced7c14b000)
    libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007ced7c137000)
    libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 (0x00007ced7c12a000)
    libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x00007ced7c107000)

[magreenblatt]

So, both your cef_demo and libcef.so load the same version of libc. What version of libc is your main application loading?

[pedroleal11]

This one: ldd (Ubuntu GLIBC 2.35-0ubuntu3.1) 2.35

[magreenblatt]

I don't see that this is a CEF issue. The libcef.so correctly links libc which should provide the specified symbols. I don't know why your application is having difficulty loading them but I suspect it's something to do with your main application's LD environment.