Bug#818807: gmt: FTBFS with libc 2.23: non-floating-point argument in call to function

[Martin Michlmayr]

Package: gmt
Version: 5.2.1+dfsg-4
Severity: important
User: debian-glibc at lists.debian.org
Usertags: 2.23

This package fails to build with libc6 2.23 (2.23-0experimental0 from
experimental).

> sbuild (Debian sbuild) 0.68.0 (15 Jan 2016) on dl580gen9-02.hlinux
...
> [ 45%] Building C object src/CMakeFiles/gmtlib.dir/xyz2grd.c.o
> cd /<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src && /usr/bin/cc  -DLIBRARY_EXPORTS -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/src -I/usr/include/gdal -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src/gshhg -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src/img -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src/meca -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src/mgd77 -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src/misc -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src/potential -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src/segy -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src/spotter -I/<<BUILDDIR>>/gmt-5.2.1+dfsg/debian/build/src/x2sys  -std=gnu99 -fstrict-aliasing -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fopenmp -O2 -g -DNDEBUG -fPIC   -o CMakeFiles/gmtlib.dir/xyz2grd.c.o   -c /<<BUILDDIR>>/gmt-5.2.1+dfsg/src/xyz2grd.c
> /<<BUILDDIR>>/gmt-5.2.1+dfsg/src/xyz2grd.c: In function 'GMT_xyz2grd':
> /<<BUILDDIR>>/gmt-5.2.1+dfsg/src/xyz2grd.c:752:4: error: non-floating-point argument in call to function '__builtin_isnan'
>     (GMT_is_dnan (GMT->common.d.active[GMT_IN])) ? sprintf (e_value, "NaN") : sprintf (e_value, GMT->current.setting.format_float_out, GMT->common.d.nan_proxy[GMT_IN]);
>     ^
> src/CMakeFiles/gmtlib.dir/build.make:2422: recipe for target 'src/CMakeFiles/gmtlib.dir/xyz2grd.c.o' failed
> make[4]: *** [src/CMakeFiles/gmtlib.dir/xyz2grd.c.o] Error 1

-- 
Martin Michlmayr
Linux for HPE Helion, Hewlett Packard Enterprise