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authorMohammad Akhlaghi <mohammad@akhlaghi.org>2019-07-31 17:11:08 +0100
committerMohammad Akhlaghi <mohammad@akhlaghi.org>2019-07-31 17:11:08 +0100
commit704fffcfb11d1b41e276bbb52624c393ff7e4428 (patch)
tree7de585a7afcf57627460976eb0b7085f869714dc /reproduce/software/config/installation
parent2baf058dcf323aa07f6d5dd3214982e7fccac3da (diff)
GCC: libstdc++ has a link to libiconv
After adding the libiconv library to the template, the C++ library uses three of its functions (`libiconv', `libiconv_open' and `libiconv_close'). However, it doesn't explicity link with it inside its shared library! I tried by exporting `LIBS=-liconv' before the GCC configure script but it crashed as soon as it went on to the second GCC building stage (because this environment variable was no longer present there). I also tried adding the C++ configure option of `--enable-cstdio' to the GCC configure options (so it doesn't use iconv according to the manual), but it made no change. With this commit, as a brute-force solution, `patchelf --add-needed' is run on the installed `libstdc++.so', so `libiconv.so' is explicitly included inside the `libstdc++' shared library. This bug was found by Roberto Baena Galle while trying to load Matplotlib (which needed the C++ library). This fixes bug #56702.
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