xapian core missing link to math on MSYS2

[Mario Emmenlauer]

Dear All,

I've tried to build xapian-core 1.4.3 on MSYS2. It fails with attached
error (undefined reference to `exp10'). I think it might be missing an
explicit link to 'm'. I'm not able to fix this myself as I do not
know autotools sufficiently well, but I hope you might be able to help.

Cheers,

    Mario Emmenlauer


--
BioDataAnalysis GmbH, Mario Emmenlauer      Tel. Buero: +49-89-74677203
Balanstr. 43                   mailto: memmenlauer * biodataanalysis.de
D-81669 München                          http://www.biodataanalysis.de/
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.libs/libxapian-30.dll -Wl,--enable-auto-image-base -Xlinker --out-implib -Xlinker .libs/libxapian.dll.a
api/.libs/omenquire.o:omenquire.cc:(.text+0xda3): undefined reference to `exp10'
collect2.exe: error: ld returned 1 exit status
make[2]: *** [Makefile:2206: libxapian.la] Error 1
make[2]: Leaving directory '/d/BioDataAnalysis/Source/GIT-MINGW-packages/mingw-w64-xapian-core/src/build-x86_64'
make[1]: *** [Makefile:3209: all-recursive] Error 1
make[1]: Leaving directory '/d/BioDataAnalysis/Source/GIT-MINGW-packages/mingw-w64-xapian-core/src/build-x86_64'
make: *** [Makefile:1567: all] Error 2