flake.nix: explicitly add libcxx as dependency #4107
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Without this change, my tinygo builds crash with SIGSEGV: segmentation violation PC=0x10884f87c m=16 sigcode=2 signal arrived during cgo execution goroutine 378 [syscall]: runtime.cgocall(0x100631e44, 0x1401755be88) /nix/store/4hf287252ilsdf2w36mfm8fa0rvbf33w-go-1.21.4/share/go/src/runtime/cgocall.go:157 +0x44 fp=0x1401755be50 sp=0x1401755be10 pc=0x1002a5084 tinygo.org/x/go-llvm._Cfunc_LLVMGoWriteThinLTOBitcodeToMemoryBuffer(0x123614160) _cgo_gotypes.go:6078 +0x34 fp=0x1401755be80 sp=0x1401755be50 pc=0x1004b66b4 ... and reports using LLVM 16: $ tinygo version tinygo version 0.31.0-dev darwin/arm64 (using go version go1.21.4 and LLVM version 16.0.6) I don't know why libcxx-16 is being included, but explicitly specifying llvmPackages_17.libcxx fixes the crash and version skew.
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Huh that's very odd. Normally Nix is supposed to only make explicit dependencies available. Perhaps it picked up libcxx from the host somehow? I think you can check using In any case, this seems harmless so I'll merge it. |
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$ DYLD_PRINT_LIBRARIES=1 DYLD_PRINT_LIBRARIES_POST_LAUNCH=1 DYLD_PRINT_RPATHS=1 tinygo
dyld[43805]: <no uuid> /Users/a/go/bin/tinygo
dyld[43805]: <no uuid> /nix/store/pa45hr057y8q677ic3mx3m2w147p4ghz-llvm-17.0.6-lib/lib/libLLVM.dylib
dyld[43805]: <no uuid> /nix/store/a377d66g1rgsd4vkzxdhkza5g55fkmky-zlib-1.3/lib/libz.dylib
dyld[43805]: <no uuid> /nix/store/j1f6nc90w2lj3a9ffhlh3swj09rx52vm-clang-17.0.6-lib/lib/libclang.dylib
dyld[43805]: <no uuid> /nix/store/x622mzi1g7v7nh7zq5r8d0nxbhrg9px3-libcxxabi-16.0.6/lib/libc++abi.1.0.dylib
dyld[43805]: <no uuid> /nix/store/vf7k7l7ny35g1nmninaqjbryl2xqkag5-libcxx-16.0.6/lib/libc++.1.0.dylib
dyld[43805]: <no uuid> /nix/store/lb9b1yj8l0zqgj5f28m4k1lw9wcj8d1m-libffi-3.4.4/lib/libffi.8.dylib
dyld[43805]: <no uuid> /nix/store/knf3077k6fhm0g5qw2z51m22afzhz279-ncurses-6.4/lib/libncursesw.6.dylib
dyld[43805]: <no uuid> /nix/store/al2fcmdcsxlx9zv5nsr4464dmrypf2bk-libxml2-2.11.5/lib/libxml2.2.dylib
dyld[43805]: <no uuid> /nix/store/g5r20rs0qhcjcbf9dhbnbd9ksg0h0jmx-libiconv-50/lib/libiconv.dylib
...
$ export |rg libcxx
declare -x NIX_CFLAGS_COMPILE=" -frandom-seed=6hlh4ydiqz -isystem /nix/store/kn42w75jaxn67cwasjc8bamvqvvmwj4j-libcxx-16.0.6-dev/include -isystem /nix/store/x26rhb948xf8jxqcrrm431qda6pgpjn1-libcxxabi-16.0.6-dev/include -isystem /nix/store/vlajrml5iynvz4b6g1hivjdwa7614g8q-compiler-rt-libc-16.0.6-dev/include -isystem /nix/store/2rzyj3jrv6ywzbah7kiffa15gj9bd46k-llvm-17.0.6-dev/include -isystem /nix/store/965d26wgfh9rjzlf5b29lvbdzz29pjnb-ncurses-6.4-dev/include -isystem /nix/store/68289cwrk5pjj6nmlb7r76qqpw99s011-zlib-1.3-dev/include -isystem /nix/store/6achz4yvzls6d3piy9jyw0bwqj71xlqz-clang-17.0.6-dev/include -isystem /nix/store/q4k0b3g6fvm3jxcdqfpxxza0hja0blgc-libcxx-17.0.6-dev/include -isystem /nix/store/299c96xpcifgymyzx3ixdmhx2w03hhc3-lld-17.0.6-dev/include -isystem /nix/store/29rm05dhznyf3ha47ra6qjgc4vhbpsia-avrdude-7.2/include -isystem /nix/store/dnmdcw3mf1yi98mvxzx8iml0pkhf8fmq-binaryen-116/include -iframework /nix/store/7aiqcq3qjyy3cx3c2qafcv1q559hgbbc-apple-framework-CoreFoundation-11.0.0/Library/Frameworks -isystem /nix/store/bj25mj5bpvbx03gqzf7hbpk6n7w4khr6-libobjc-11.0.0/include -iframework /nix/store/cpdysjy53rjmmmrfd7pz4b7kmvaskmph-apple-framework-Foundation-11.0.0/Library/Frameworks -iframework /nix/store/y12dx8cmpj68i10w72cijccflnhg1ad7-apple-framework-ApplicationServices-11.0.0/Library/Frameworks -iframework /nix/store/803jnyznlw514dz1fcbasgh69m76pxyv-apple-framework-ColorSync-11.0.0/Library/Frameworks -iframework /nix/store/18n978qvmqs5rlxv5wb5mhrrdbsi06l7-apple-framework-CoreFoundation-11.0.0/Library/Frameworks -iframework /nix/store/mxn3cnq7hhh4qy6mnwhnwrn5qks1cs18-apple-framework-CoreGraphics-11.0.0/Library/Frameworks -iframework /nix/store/7nc6wi6swdc8hcxwf2al3r0nzvbgqs4m-apple-framework-IOKit-11.0.0/Library/Frameworks -iframework /nix/store/g8f2sg1a14x4axx9x7ji4hlll2r933k6-apple-framework-SystemConfiguration-11.0.0/Library/Frameworks -iframework /nix/store/h0x77jf3ix0x2jkjs9imsngk8kws94la-apple-framework-Security-11.0.0/Library/Frameworks -isystem /nix/store/7y81azvimmhqrk0mia4qzyxwzhdx5rdv-apple-lib-libDER/include -iframework /nix/store/2a37hj2yxfpyc3f6gzvafnlh91lzigsp-apple-framework-CoreServices-11.0.0/Library/Frameworks -iframework /nix/store/lbnn0f8m05d7vkqrwx6b47mc7wy9wxf9-apple-framework-CFNetwork-11.0.0/Library/Frameworks -iframework /nix/store/yr4bxvf9d5xz7lp9p7wig5fk9m6a0l99-apple-framework-CoreAudio-11.0.0/Library/Frameworks -iframework /nix/store/wd6jngfywj1d60dcx24afwgc92zcxypr-apple-framework-CoreAudioTypes-11.0.0/Library/Frameworks -iframework /nix/store/pvslgd1gpl5vfpmhg0zrr91ws090jfv9-apple-framework-DiskArbitration-11.0.0/Library/Frameworks -iframework /nix/store/ch84dx65aix6hrdj91qiadxndp3f6l65-apple-framework-NetFS-11.0.0/Library/Frameworks -iframework /nix/store/02487zak2xyyppwrvq7ik6lpa04340ca-apple-framework-ServiceManagement-11.0.0/Library/Frameworks -iframework /nix/store/4pwbyf74gg6vk9pycic5w0c9pz86yjjz-apple-framework-CoreText-11.0.0/Library/Frameworks -iframework /nix/store/fidyspdqrpyhkv2bs9523prw5v39n646-apple-framework-ImageIO-11.0.0/Library/Frameworks -iframework /nix/store/wshv41iccz36yfb5bjmqfwvldzd8id5v-apple-framework-Combine-11.0.0/Library/Frameworks -isystem /nix/store/4h8sj7pmid71vgkflx4wxyvmj6mghz39-Toolchains/XcodeDefault.xctoolchain/include -isystem /nix/store/kn42w75jaxn67cwasjc8bamvqvvmwj4j-libcxx-16.0.6-dev/include -isystem /nix/store/x26rhb948xf8jxqcrrm431qda6pgpjn1-libcxxabi-16.0.6-dev/include -isystem /nix/store/vlajrml5iynvz4b6g1hivjdwa7614g8q-compiler-rt-libc-16.0.6-dev/include -isystem /nix/store/2rzyj3jrv6ywzbah7kiffa15gj9bd46k-llvm-17.0.6-dev/include -isystem /nix/store/965d26wgfh9rjzlf5b29lvbdzz29pjnb-ncurses-6.4-dev/include -isystem /nix/store/68289cwrk5pjj6nmlb7r76qqpw99s011-zlib-1.3-dev/include -isystem /nix/store/6achz4yvzls6d3piy9jyw0bwqj71xlqz-clang-17.0.6-dev/include -isystem /nix/store/q4k0b3g6fvm3jxcdqfpxxza0hja0blgc-libcxx-17.0.6-dev/include -isystem /nix/store/299c96xpcifgymyzx3ixdmhx2w03hhc3-lld-17.0.6-dev/include -isystem /nix/store/29rm05dhznyf3ha47ra6qjgc4vhbpsia-avrdude-7.2/include -isystem /nix/store/dnmdcw3mf1yi98mvxzx8iml0pkhf8fmq-binaryen-116/include -iframework /nix/store/7aiqcq3qjyy3cx3c2qafcv1q559hgbbc-apple-framework-CoreFoundation-11.0.0/Library/Frameworks -isystem /nix/store/bj25mj5bpvbx03gqzf7hbpk6n7w4khr6-libobjc-11.0.0/include -iframework /nix/store/cpdysjy53rjmmmrfd7pz4b7kmvaskmph-apple-framework-Foundation-11.0.0/Library/Frameworks -iframework /nix/store/y12dx8cmpj68i10w72cijccflnhg1ad7-apple-framework-ApplicationServices-11.0.0/Library/Frameworks -iframework /nix/store/803jnyznlw514dz1fcbasgh69m76pxyv-apple-framework-ColorSync-11.0.0/Library/Frameworks -iframework /nix/store/18n978qvmqs5rlxv5wb5mhrrdbsi06l7-apple-framework-CoreFoundation-11.0.0/Library/Frameworks -iframework /nix/store/mxn3cnq7hhh4qy6mnwhnwrn5qks1cs18-apple-framework-CoreGraphics-11.0.0/Library/Frameworks -iframework /nix/store/7nc6wi6swdc8hcxwf2al3r0nzvbgqs4m-apple-framework-IOKit-11.0.0/Library/Frameworks -iframework /nix/store/g8f2sg1a14x4axx9x7ji4hlll2r933k6-apple-framework-SystemConfiguration-11.0.0/Library/Frameworks -iframework /nix/store/h0x77jf3ix0x2jkjs9imsngk8kws94la-apple-framework-Security-11.0.0/Library/Frameworks -isystem /nix/store/7y81azvimmhqrk0mia4qzyxwzhdx5rdv-apple-lib-libDER/include -iframework /nix/store/2a37hj2yxfpyc3f6gzvafnlh91lzigsp-apple-framework-CoreServices-11.0.0/Library/Frameworks -iframework /nix/store/lbnn0f8m05d7vkqrwx6b47mc7wy9wxf9-apple-framework-CFNetwork-11.0.0/Library/Frameworks -iframework /nix/store/yr4bxvf9d5xz7lp9p7wig5fk9m6a0l99-apple-framework-CoreAudio-11.0.0/Library/Frameworks -iframework /nix/store/wd6jngfywj1d60dcx24afwgc92zcxypr-apple-framework-CoreAudioTypes-11.0.0/Library/Frameworks -iframework /nix/store/pvslgd1gpl5vfpmhg0zrr91ws090jfv9-apple-framework-DiskArbitration-11.0.0/Library/Frameworks -iframework /nix/store/ch84dx65aix6hrdj91qiadxndp3f6l65-apple-framework-NetFS-11.0.0/Library/Frameworks -iframework /nix/store/02487zak2xyyppwrvq7ik6lpa04340ca-apple-framework-ServiceManagement-11.0.0/Library/Frameworks -iframework /nix/store/4pwbyf74gg6vk9pycic5w0c9pz86yjjz-apple-framework-CoreText-11.0.0/Library/Frameworks -iframework /nix/store/fidyspdqrpyhkv2bs9523prw5v39n646-apple-framework-ImageIO-11.0.0/Library/Frameworks -iframework /nix/store/wshv41iccz36yfb5bjmqfwvldzd8id5v-apple-framework-Combine-11.0.0/Library/Frameworks -isystem /nix/store/4h8sj7pmid71vgkflx4wxyvmj6mghz39-Toolchains/XcodeDefault.xctoolchain/include"
declare -x NIX_LDFLAGS=" -L/nix/store/vf7k7l7ny35g1nmninaqjbryl2xqkag5-libcxx-16.0.6/lib -L/nix/store/x622mzi1g7v7nh7zq5r8d0nxbhrg9px3-libcxxabi-16.0.6/lib -L/nix/store/l92ls1vba62zsywdj81hlgmgx5adn6bn-compiler-rt-libc-16.0.6/lib -L/nix/store/knf3077k6fhm0g5qw2z51m22afzhz279-ncurses-6.4/lib -L/nix/store/a377d66g1rgsd4vkzxdhkza5g55fkmky-zlib-1.3/lib -L/nix/store/pa45hr057y8q677ic3mx3m2w147p4ghz-llvm-17.0.6-lib/lib -L/nix/store/j1f6nc90w2lj3a9ffhlh3swj09rx52vm-clang-17.0.6-lib/lib -L/nix/store/vv6jrgnyi4av0wqc471y7yy9k4p8yjnc-libcxx-17.0.6/lib -L/nix/store/idnlzhm9nga5lixs6pz5y56bjkajbmqm-lld-17.0.6-lib/lib -L/nix/store/29rm05dhznyf3ha47ra6qjgc4vhbpsia-avrdude-7.2/lib -L/nix/store/dnmdcw3mf1yi98mvxzx8iml0pkhf8fmq-binaryen-116/lib -L/nix/store/bj25mj5bpvbx03gqzf7hbpk6n7w4khr6-libobjc-11.0.0/lib -L/nix/store/vf7k7l7ny35g1nmninaqjbryl2xqkag5-libcxx-16.0.6/lib -L/nix/store/x622mzi1g7v7nh7zq5r8d0nxbhrg9px3-libcxxabi-16.0.6/lib -L/nix/store/l92ls1vba62zsywdj81hlgmgx5adn6bn-compiler-rt-libc-16.0.6/lib -L/nix/store/knf3077k6fhm0g5qw2z51m22afzhz279-ncurses-6.4/lib -L/nix/store/a377d66g1rgsd4vkzxdhkza5g55fkmky-zlib-1.3/lib -L/nix/store/pa45hr057y8q677ic3mx3m2w147p4ghz-llvm-17.0.6-lib/lib -L/nix/store/j1f6nc90w2lj3a9ffhlh3swj09rx52vm-clang-17.0.6-lib/lib -L/nix/store/vv6jrgnyi4av0wqc471y7yy9k4p8yjnc-libcxx-17.0.6/lib -L/nix/store/idnlzhm9nga5lixs6pz5y56bjkajbmqm-lld-17.0.6-lib/lib -L/nix/store/29rm05dhznyf3ha47ra6qjgc4vhbpsia-avrdude-7.2/lib -L/nix/store/dnmdcw3mf1yi98mvxzx8iml0pkhf8fmq-binaryen-116/lib -L/nix/store/bj25mj5bpvbx03gqzf7hbpk6n7w4khr6-libobjc-11.0.0/lib"
declare -x buildInputs="/nix/store/4hf287252ilsdf2w36mfm8fa0rvbf33w-go-1.21.4 /nix/store/2rzyj3jrv6ywzbah7kiffa15gj9bd46k-llvm-17.0.6-dev /nix/store/6achz4yvzls6d3piy9jyw0bwqj71xlqz-clang-17.0.6-dev /nix/store/q4k0b3g6fvm3jxcdqfpxxza0hja0blgc-libcxx-17.0.6-dev /nix/store/299c96xpcifgymyzx3ixdmhx2w03hhc3-lld-17.0.6-dev /nix/store/29rm05dhznyf3ha47ra6qjgc4vhbpsia-avrdude-7.2 /nix/store/dnmdcw3mf1yi98mvxzx8iml0pkhf8fmq-binaryen-116"I tried |
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Without this change, my tinygo builds crash with
and reports using LLVM 16:
I don't know why libcxx-16 is being included, but explicitly specifying llvmPackages_17.libcxx fixes the crash and version skew.