fast-float: add versions 7.0.0, 8.0.0, 8.0.1, 8.0.2, 8.1.0 #2122
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Pull Request Overview
This PR adds five new versions (7.0.0, 8.0.0, 8.0.1, 8.0.2, and 8.1.0) of the fast-float package to the Spack repository, expanding the available versions for users.
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alalazo
approved these changes
Oct 28, 2025
Sbozzolo
added a commit
to Sbozzolo/spack-packages
that referenced
this pull request
Oct 28, 2025
PR spack#2122 updated `fast-float` and I found that `scnlib` is not compatible with versions of `fast-float` newer than 6. I'll open an issue (and maybe a PR) to report this upstream, but in the meantime, I updated the package.py to account for this incompatibility. I also added version 4. Here's the error: ``` 5 errors found in build log: 180 cd /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53x s2qmu5am55zm7omrt/spack-build-j4wgylr/benchmark/binarysize && /opt/ spack/linux-x86_64_v3/compiler-wrapper-1.0-kr35wwg7rvdhdh26tpinvbyg zmd6fwrz/libexec/spack/gcc/g++ -O3 -DNDEBUG -Wno-unused -Wno-unus ed-but-set-variable -Wno-redundant-decls -Wno-missing-declarations -MD -MT benchmark/binarysize/CMakeFiles/scn_benchmark_binarysize_sc anf.dir/out/scanf/binarysize_test_tmp_15.cpp.o -MF CMakeFiles/scn_b enchmark_binarysize_scanf.dir/out/scanf/binarysize_test_tmp_15.cpp. o.d -o CMakeFiles/scn_benchmark_binarysize_scanf.dir/out/scanf/bina rysize_test_tmp_15.cpp.o -c /tmp/runner/spack-stage/spack-stage-scn lib-3.0.1-j4wgylr2ljzv53xs2qmu5am55zm7omrt/spack-build-j4wgylr/benc hmark/binarysize/out/scanf/binarysize_test_tmp_15.cpp 181 [ 71%] Building CXX object benchmark/binarysize/CMakeFiles/scn_benc hmark_binarysize_scanf.dir/out/scanf/binarysize_test_tmp_16.cpp.o 182 cd /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53x s2qmu5am55zm7omrt/spack-build-j4wgylr/benchmark/binarysize && /opt/ spack/linux-x86_64_v3/compiler-wrapper-1.0-kr35wwg7rvdhdh26tpinvbyg zmd6fwrz/libexec/spack/gcc/g++ -O3 -DNDEBUG -Wno-unused -Wno-unus ed-but-set-variable -Wno-redundant-decls -Wno-missing-declarations -MD -MT benchmark/binarysize/CMakeFiles/scn_benchmark_binarysize_sc anf.dir/out/scanf/binarysize_test_tmp_16.cpp.o -MF CMakeFiles/scn_b enchmark_binarysize_scanf.dir/out/scanf/binarysize_test_tmp_16.cpp. o.d -o CMakeFiles/scn_benchmark_binarysize_scanf.dir/out/scanf/bina rysize_test_tmp_16.cpp.o -c /tmp/runner/spack-stage/spack-stage-scn lib-3.0.1-j4wgylr2ljzv53xs2qmu5am55zm7omrt/spack-build-j4wgylr/benc hmark/binarysize/out/scanf/binarysize_test_tmp_16.cpp 183 [ 72%] Building CXX object benchmark/binarysize/CMakeFiles/scn_benc hmark_binarysize_iostream.dir/out/iostream/binarysize_test_tmp_16.c pp.o 184 cd /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53x s2qmu5am55zm7omrt/spack-build-j4wgylr/benchmark/binarysize && /opt/ spack/linux-x86_64_v3/compiler-wrapper-1.0-kr35wwg7rvdhdh26tpinvbyg zmd6fwrz/libexec/spack/gcc/g++ -O3 -DNDEBUG -Wno-unused -Wno-unus ed-but-set-variable -Wno-redundant-decls -Wno-missing-declarations -MD -MT benchmark/binarysize/CMakeFiles/scn_benchmark_binarysize_io stream.dir/out/iostream/binarysize_test_tmp_16.cpp.o -MF CMakeFiles /scn_benchmark_binarysize_iostream.dir/out/iostream/binarysize_test _tmp_16.cpp.o.d -o CMakeFiles/scn_benchmark_binarysize_iostream.dir /out/iostream/binarysize_test_tmp_16.cpp.o -c /tmp/runner/spack-sta ge/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53xs2qmu5am55zm7omrt/spack- build-j4wgylr/benchmark/binarysize/out/iostream/binarysize_test_tmp _16.cpp 185 /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53xs2q mu5am55zm7omrt/spack-src/src/scn/impl.cpp: In member function 'fast _float::chars_format scn::v3::impl::{anonymous}::fast_float_impl_ba se::get_flags() const': >> 186 /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53xs2q mu5am55zm7omrt/spack-src/src/scn/impl.cpp:1063:41: error: 'fixed' i s not a member of 'fast_float' 187 1063 | format_flags |= fast_float::fixed; 188 | ^~~~~ 189 /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53xs2q mu5am55zm7omrt/spack-src/src/scn/impl.cpp:1063:41: note: suggested alternatives: 190 In file included from /usr/include/c++/14/streambuf:43, 191 from /usr/include/c++/14/bits/streambuf_iterator.h :35, 192 from /usr/include/c++/14/iterator:66, ... 205 from /tmp/runner/spack-stage/spack-stage-scnlib-3. 0.1-j4wgylr2ljzv53xs2qmu5am55zm7omrt/spack-src/src/scn/impl.cpp:47: 206 /opt/spack/linux-x86_64_v3/fast-float-8.1.0-o3w24stbxqx5jhiljl6pdgr oujiyaktj/include/fast_float/float_common.h:45:3: note: 'fast_flo at::chars_format::fixed' 207 45 | fixed = 1 << 2, 208 | ^~~~~ 209 [ 73%] Linking CXX executable scn_benchmark_binarysize_scanf 210 cd /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53x s2qmu5am55zm7omrt/spack-build-j4wgylr/benchmark/binarysize && /usr/ local/bin/cmake -E cmake_link_script CMakeFiles/scn_benchmark_binar ysize_scanf.dir/link.txt --verbose=1 >> 211 /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53xs2q mu5am55zm7omrt/spack-src/src/scn/impl.cpp:1066:41: error: 'scientif ic' is not a member of 'fast_float' 212 1066 | format_flags |= fast_float::scientific; 213 | ^~~~~~~~~~ 214 /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53xs2q mu5am55zm7omrt/spack-src/src/scn/impl.cpp:1066:41: note: suggested alternatives: 215 /usr/include/c++/14/bits/ios_base.h:1112:3: note: 'std::scientifi c' 216 1112 | scientific(ios_base& __base) 217 | ^~~~~~~~~~ ... 226 [ 73%] Built target scn_benchmark_binarysize_scanf 227 [ 75%] Linking CXX executable scn_benchmark_binarysize_iostream 228 cd /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53x s2qmu5am55zm7omrt/spack-build-j4wgylr/benchmark/binarysize && /usr/ local/bin/cmake -E cmake_link_script CMakeFiles/scn_benchmark_binar ysize_iostream.dir/link.txt --verbose=1 229 /opt/spack/linux-x86_64_v3/compiler-wrapper-1.0-kr35wwg7rvdhdh26tpi nvbygzmd6fwrz/libexec/spack/gcc/g++ -O3 -DNDEBUG -Wl,--dependency-f ile=CMakeFiles/scn_benchmark_binarysize_iostream.dir/link.d CMakeFi les/scn_benchmark_binarysize_iostream.dir/out/iostream/binarysize_t est_main.cpp.o CMakeFiles/scn_benchmark_binarysize_iostream.dir/out /iostream/binarysize_test_tmp_0.cpp.o CMakeFiles/scn_benchmark_bina rysize_iostream.dir/out/iostream/binarysize_test_tmp_1.cpp.o CMakeF iles/scn_benchmark_binarysize_iostream.dir/out/iostream/binarysize_ test_tmp_2.cpp.o CMakeFiles/scn_benchmark_binarysize_iostream.dir/o ut/iostream/binarysize_test_tmp_3.cpp.o CMakeFiles/scn_benchmark_bi narysize_iostream.dir/out/iostream/binarysize_test_tmp_4.cpp.o CMak eFiles/scn_benchmark_binarysize_iostream.dir/out/iostream/binarysiz e_test_tmp_5.cpp.o CMakeFiles/scn_benchmark_binarysize_iostream.dir /out/iostream/binarysize_test_tmp_6.cpp.o CMakeFiles/scn_benchmark_ binarysize_iostream.dir/out/iostream/binarysize_test_tmp_7.cpp.o CM akeFiles/scn_benchmark_binarysize_iostream.dir/out/iostream/binarys ize_test_tmp_8.cpp.o CMakeFiles/scn_benchmark_binarysize_iostream.d ir/out/iostream/binarysize_test_tmp_9.cpp.o CMakeFiles/scn_benchmar k_binarysize_iostream.dir/out/iostream/binarysize_test_tmp_10.cpp.o CMakeFiles/scn_benchmark_binarysize_iostream.dir/out/iostream/bina rysize_test_tmp_11.cpp.o CMakeFiles/scn_benchmark_binarysize_iostre am.dir/out/iostream/binarysize_test_tmp_12.cpp.o CMakeFiles/scn_ben chmark_binarysize_iostream.dir/out/iostream/binarysize_test_tmp_13. cpp.o CMakeFiles/scn_benchmark_binarysize_iostream.dir/out/iostream /binarysize_test_tmp_14.cpp.o CMakeFiles/scn_benchmark_binarysize_i ostream.dir/out/iostream/binarysize_test_tmp_15.cpp.o CMakeFiles/sc n_benchmark_binarysize_iostream.dir/out/iostream/binarysize_test_tm p_16.cpp.o -o scn_benchmark_binarysize_iostream 230 make[2]: Leaving directory '/tmp/runner/spack-stage/spack-stage-scn lib-3.0.1-j4wgylr2ljzv53xs2qmu5am55zm7omrt/spack-build-j4wgylr' 231 [ 75%] Built target scn_benchmark_binarysize_iostream >> 232 make[2]: *** [CMakeFiles/scn.dir/build.make:82: CMakeFiles/scn.dir/ src/scn/impl.cpp.o] Error 1 233 make[2]: Leaving directory '/tmp/runner/spack-stage/spack-stage-scn lib-3.0.1-j4wgylr2ljzv53xs2qmu5am55zm7omrt/spack-build-j4wgylr' >> 234 make[1]: *** [CMakeFiles/Makefile2:300: CMakeFiles/scn.dir/all] Err or 2 235 make[1]: Leaving directory '/tmp/runner/spack-stage/spack-stage-scn lib-3.0.1-j4wgylr2ljzv53xs2qmu5am55zm7omrt/spack-build-j4wgylr' >> 236 make: *** [Makefile:149: all] Error 2 See build log for details: /tmp/runner/spack-stage/spack-stage-scnlib-3.0.1-j4wgylr2ljzv53xs2qmu5am55zm7omrt/spack-bui ```
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