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+In-Reply-To: <20140103214735.GG27614@danbala.tuwien.ac.at>\r
+References: <20140103214735.GG27614@danbala.tuwien.ac.at>\r
+Date: Sat, 4 Jan 2014 14:35:54 +0200\r
+Message-ID:\r
+ <CAB+hUn-8eyY07y3j1N3JJLQ3qWVEVPoGWHcUVkovg34xH0ZOwQ@mail.gmail.com>\r
+Subject: Re: notmuch-0.16: realpath() compatibility issue;\r
+ clang visibility problem\r
+From: Jani Nikula <jani@nikula.org>\r
+To: Thomas Klausner <tk@giga.or.at>\r
+Content-Type: multipart/alternative; boundary=047d7bdc855686369c04ef24443b\r
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+\r
+--047d7bdc855686369c04ef24443b\r
+Content-Type: text/plain; charset=UTF-8\r
+\r
+For the visibility issue please upgrade Notmuch.\r
+\r
+BR,\r
+Jani.\r
+\r
+On Jan 4, 2014 2:26 PM, "Thomas Klausner" <tk@giga.or.at> wrote:\r
+>\r
+> Hi!\r
+>\r
+> I'm currently starting to try out notmuch-0.16 on NetBSD. It went off\r
+> to a rocky start, since it segfaulted in the initial config setup.\r
+>\r
+> Debugging it I found that notmuch uses a glibc extension to realpath,\r
+> allowing NULL as second argument.\r
+>\r
+> I've converted it to use a prepared buffer instead; attached is a\r
+> possible patch that makes notmuch complete its setup phase for me, and\r
+> adds inclusion of the header files suggested by the realpath man page\r
+> on NetBSD. Please address this issue in some way in the next release.\r
+>\r
+> Additionally, when compiling with clang, there are issues with the\r
+> visibility. The symptoms are:\r
+>\r
+> In file included from lib/database.cc:21:\r
+> In file included from ./lib/database-private.h:33:\r
+> ./lib/notmuch-private.h:479:8: error: visibility does not match previous\r
+declaration\r
+> array subscriptstruct visible _notmuch_string_list {\r
+> ^\r
+> ./lib/notmuch-private.h:67:33: note: expanded from macro 'visible'\r
+> # define visible __attribute__((visibility("default")))\r
+> ^\r
+> ./lib/notmuch-private.h:52:13: note: previous attribute is here\r
+> #pragma GCC visibility push(hidden)\r
+> ^\r
+>\r
+> In file included from lib/parse-time-vrp.cc:23:\r
+> In file included from ./lib/database-private.h:33:\r
+> ./lib/notmuch-private.h:479:8: error: visibility does not match previous\r
+declaration\r
+> struct visible _notmuch_string_list {\r
+> ^\r
+> ./lib/notmuch-private.h:67:33: note: expanded from macro 'visible'\r
+> # define visible __attribute__((visibility("default")))\r
+> ^\r
+> ./lib/notmuch-private.h:52:13: note: previous attribute is here\r
+> #pragma GCC visibility push(hidden)\r
+> ^\r
+> 1 warning generated.\r
+> In file included from lib/directory.cc:21:\r
+> ./lib/notmuch-private.h:479:8: error: visibility does not match previous\r
+declaration\r
+> struct visible _notmuch_string_list {\r
+> ^\r
+> ./lib/notmuch-private.h:67:33: note: expanded from macro 'visible'\r
+> # define visible __attribute__((visibility("default")))\r
+> ^\r
+> ./lib/notmuch-private.h:52:13: note: previous attribute is here\r
+> #pragma GCC visibility push(hidden)\r
+> ^\r
+>\r
+> and so on. I guess it is because the visibility differs between c and\r
+> c++. I've disabled visibility locally, see second attached patch, but\r
+> of course that's not a solution, just a workaround. Suggestions\r
+> welcome.\r
+>\r
+> Thanks,\r
+> Thomas\r
+>\r
+> _______________________________________________\r
+> notmuch mailing list\r
+> notmuch@notmuchmail.org\r
+> http://notmuchmail.org/mailman/listinfo/notmuch\r
+>\r
+\r
+--047d7bdc855686369c04ef24443b\r
+Content-Type: text/html; charset=UTF-8\r
+Content-Transfer-Encoding: quoted-printable\r
+\r
+<p dir=3D"ltr">For the visibility issue please upgrade Notmuch.</p>\r
+<p dir=3D"ltr">BR,<br>\r
+Jani.</p>\r
+<p dir=3D"ltr">On Jan 4, 2014 2:26 PM, "Thomas Klausner" <<a h=\r
+ref=3D"mailto:tk@giga.or.at">tk@giga.or.at</a>> wrote:<br>\r
+><br>\r
+> Hi!<br>\r
+><br>\r
+> I'm currently starting to try out notmuch-0.16 on NetBSD. It went =\r
+off<br>\r
+> to a rocky start, since it segfaulted in the initial config setup.<br>\r
+><br>\r
+> Debugging it I found that notmuch uses a glibc extension to realpath,<=\r
+br>\r
+> allowing NULL as second argument.<br>\r
+><br>\r
+> I've converted it to use a prepared buffer instead; attached is a<=\r
+br>\r
+> possible patch that makes notmuch complete its setup phase for me, and=\r
+<br>\r
+> adds inclusion of the header files suggested by the realpath man page<=\r
+br>\r
+> on NetBSD. Please address this issue in some way in the next release.<=\r
+br>\r
+><br>\r
+> Additionally, when compiling with clang, there are issues with the<br>\r
+> visibility. The symptoms are:<br>\r
+><br>\r
+> In file included from lib/database.cc:21:<br>\r
+> In file included from ./lib/database-private.h:33:<br>\r
+> ./lib/notmuch-private.h:479:8: error: visibility does not match previo=\r
+us declaration<br>\r
+> array subscriptstruct visible _notmuch_string_list {<br>\r
+> =C2=A0 =C2=A0 =C2=A0 =C2=A0^<br>\r
+> ./lib/notmuch-private.h:67:33: note: expanded from macro 'visible&=\r
+#39;<br>\r
+> =C2=A0# define visible __attribute__((visibility("default"))=\r
+)<br>\r
+> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =\r
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ^<br>\r
+> ./lib/notmuch-private.h:52:13: note: previous attribute is here<br>\r
+> #pragma GCC visibility push(hidden)<br>\r
+> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ^<br>\r
+><br>\r
+> In file included from lib/parse-time-vrp.cc:23:<br>\r
+> In file included from ./lib/database-private.h:33:<br>\r
+> ./lib/notmuch-private.h:479:8: error: visibility does not match previo=\r
+us declaration<br>\r
+> struct visible _notmuch_string_list {<br>\r
+> =C2=A0 =C2=A0 =C2=A0 =C2=A0^<br>\r
+> ./lib/notmuch-private.h:67:33: note: expanded from macro 'visible&=\r
+#39;<br>\r
+> # define visible __attribute__((visibility("default")))<br>\r
+> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =\r
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ^<br>\r
+> ./lib/notmuch-private.h:52:13: note: previous attribute is here<br>\r
+> #pragma GCC visibility push(hidden)<br>\r
+> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ^<br>\r
+> 1 warning generated.<br>\r
+> In file included from lib/directory.cc:21:<br>\r
+> ./lib/notmuch-private.h:479:8: error: visibility does not match previo=\r
+us declaration<br>\r
+> struct visible _notmuch_string_list {<br>\r
+> =C2=A0 =C2=A0 =C2=A0 =C2=A0^<br>\r
+> ./lib/notmuch-private.h:67:33: note: expanded from macro 'visible&=\r
+#39;<br>\r
+> # define visible __attribute__((visibility("default")))<br>\r
+> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =\r
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ^<br>\r
+> ./lib/notmuch-private.h:52:13: note: previous attribute is here<br>\r
+> #pragma GCC visibility push(hidden)<br>\r
+> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ^<br>\r
+><br>\r
+> and so on. I guess it is because the visibility differs between c and<=\r
+br>\r
+> c++. I've disabled visibility locally, see second attached patch, =\r
+but<br>\r
+> of course that's not a solution, just a workaround. Suggestions<br=\r
+>\r
+> welcome.<br>\r
+><br>\r
+> Thanks,<br>\r
+> =C2=A0Thomas<br>\r
+><br>\r
+> _______________________________________________<br>\r
+> notmuch mailing list<br>\r
+> <a href=3D"mailto:notmuch@notmuchmail.org">notmuch@notmuchmail.org</a>=\r
+<br>\r
+> <a href=3D"http://notmuchmail.org/mailman/listinfo/notmuch">http://not=\r
+muchmail.org/mailman/listinfo/notmuch</a><br>\r
+><br>\r
+</p>\r
+\r
+--047d7bdc855686369c04ef24443b--\r
projects / notmuch-archives.git / commitdiff