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On Thu, Jun 28, 2012 at 7:51 AM, OlŠµ Streicher <[log in to unmask]> wrote: > Tim Jenness <[log in to unmask]> writes: >> What do these warnings mean? They are the libm symbols. > >> dpkg-shlibdeps: warning: symbol fmod used by >> debian/libstarlink-pal0/usr/lib/libstarlink_pal.so.0.0.0 found in none >> of the libraries. > > The Debian builder checks that all symbols of a shared library are > resolved. Since the math library is not linked during the build process > of pal (and ast), its symbols remain unresolved, and the user has to add > -lm when linking the whole program. Adding "-lm" to libpal_la_LIBADD > (resp. libast_la_LIBADD) in Makefile.am solves this problem. The other > symbols not found in libstarlink-ast0 are on purpose (they are to be > provided by the user, or the fallback libraries). > I hadn't noticed the issue because in the Starlink build for SOFA (I wrote a configure.ac and Makefile.am for it and there is a SOFA git repository I put together) I do an AC_CHECK_LIB that leads to libm automatically being included in libpal when I create libpal. Since PAL does use sin/cos I've added AC_CHECK_LIB to PAL configure.ac in v0.1.5 (and on OSX libm is never needed since it's all in libSystem). v0.1.5 has been uploaded. -- Tim Jenness