[Bug libstdc++/93602] Missing reference to libiconv in 9.x libstdc++

[ilg at livius dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93602

--- Comment #3 from Liviu Ionescu <ilg at livius dot net> ---
The actual configure line is:

            bash ${DEBUG}
"${SOURCES_FOLDER_PATH}/${native_gcc_folder_name}/configure" \
              --prefix="${INSTALL_FOLDER_PATH}" \
              --program-suffix="${XBB_GCC_SUFFIX}" \
              --with-pkgversion="${XBB_GCC_BRANDING}" \
              \
              --enable-languages=c,c++ \
              \
              --with-linker-hash-style=gnu \
              --enable-libmpx \
              \
              --enable-checking=release \
              --enable-threads=posix \
              --enable-__cxa_atexit \
              --disable-libunwind-exceptions \
              --disable-libstdcxx-pch \
              --disable-libssp \
              --enable-gnu-unique-object \
              --enable-linker-build-id \
              --enable-lto \
              --enable-plugin \
              --enable-install-libiberty \
              --enable-gnu-indirect-function \
              --disable-multilib \
              --disable-werror \
              --disable-nls \


I also tried a simplified version, like 

            bash ${DEBUG}
"${SOURCES_FOLDER_PATH}/${native_gcc_folder_name}/configure" \
              --prefix="${INSTALL_FOLDER_PATH}" \
              --program-suffix="${XBB_GCC_SUFFIX}" \
              --with-pkgversion="${XBB_GCC_BRANDING}" \
              \
              --enable-languages=c,c++ \
              \
              --disable-multilib \
              --disable-werror \
              --disable-nls \

but it did not help.

The system I'm running this is an Ubuntu 12, but with all new libraries and
tools installed, so it is not very easy to reproduce the case.