Hello,
I have been trying to build tinyspline with cmake on Tumbleweed.
https://build.opensuse.org/package/s...eat/tinyspline
I encounter error:
It is complaining about undefined reference to `sqrt' and `pow'
I found that I have to add link flag -lm, which told gcc to use math library.
https://stackoverflow.com/questions/...-pow-and-floor
But I think I was adding it the wrong way, which still cause the same error.
Thanks,
Andy
I have been trying to build tinyspline with cmake on Tumbleweed.
https://build.opensuse.org/package/s...eat/tinyspline
I encounter error:
Code:
[ 5s] /usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld: /tmp/libtinyspline.so.FCXWuN.ltrans0.ltrans.o: in function `ts_distance':
[ 5s] /home/abuild/rpmbuild/BUILD/tinyspline-snapshot/src/tinyspline.c:2069: undefined reference to `sqrt'
[ 5s] /usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld: /tmp/libtinyspline.so.FCXWuN.ltrans0.ltrans.o: in function `ts_bspline_interpolate_catmull_rom':
[ 5s] /home/abuild/rpmbuild/BUILD/tinyspline-snapshot/src/tinyspline.c:987: undefined reference to `pow'
[ 5s] /usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld: /home/abuild/rpmbuild/BUILD/tinyspline-snapshot/src/tinyspline.c:988: undefined reference to `pow'
[ 5s] /usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld: /home/abuild/rpmbuild/BUILD/tinyspline-snapshot/src/tinyspline.c:989: undefined reference to `pow'
[ 5s] collect2: error: ld returned 1 exit statusI found that I have to add link flag -lm, which told gcc to use math library.
https://stackoverflow.com/questions/...-pow-and-floor
But I think I was adding it the wrong way, which still cause the same error.
Code:
%prep
%autosetup -n %{name}-%{version}
%build
%cmake -DCMAKE_INSTALL_PREFIX=%{_prefix} \
-DCMAKE_LD_FLAGS:STRING="%optflags -lm" \
-DCMAKE_CXX_FLAGS:STRING="%optflags -lm" \
%cmake_build
%install
%cmake_installAndy