Interesting... I'm not sure we can ignore CPATH, as in principle someone might use it intentionally, and put a path to valid emscripten contents there.
On the other hand if this is common on some OSes then it does seem like something we should do something about, even if only warn. On Wed, Nov 25, 2020 at 10:51 AM Floh <[email protected]> wrote: > Oh interesting and TIL, I didn't know that CPATH thing. Maybe emcc should > somehow ignore CPATH, it sounds like it could happen to more people, and > it's a very obscure sort of problem. > > On Wednesday, 25 November 2020 at 19:15:03 UTC+1 [email protected] wrote: > >> That's it! `env | grep CommandLineTools` showed me >> `CPATH=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include`. I >> then ran `export CPATH=''`, and then I compiled hello_world.c without any >> problems. Apparently I was setting the CPATH environment variable in my >> .zprofile. >> >> >> Thanks so much everyone! >> >> Efrem Braun >> >> >> On Wed, Nov 25, 2020 at 12:55 PM Floh <[email protected]> wrote: >> >>> Complete shot in the dark, but does this show anything: >>> >>> env | grep CommandLineTools >>> >>> ...basically checking if that include path shows up in any environment >>> variable... >>> >>> On Wednesday, 25 November 2020 at 18:46:15 UTC+1 Floh wrote: >>> >>>> Yeah, the first include here is the problem (/Library/Developer/...). >>>> The question is how this is getting in there... >>>> >>>> #include "..." search starts here: >>>> #include <...> search starts here: >>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include >>>> /Users/edbraun/software/emsdk/upstream/emscripten/system/include/SDL >>>> /Users/edbraun/software/emsdk/upstream/emscripten/system/include/compat >>>> >>>> I don't know if clang/emcc has any hidden feature to get header search >>>> paths from anywhere else than the command line (like an environment >>>> variable maybe?), I tried googling for that but haven't found anything. >>>> >>>> >>>> >>>> >>>> On Wednesday, 25 November 2020 at 18:28:26 UTC+1 [email protected] >>>> wrote: >>>> >>>>> Changing the shell to bash and redoing the installation gave the same >>>>> results, so it's not the zsh shell. >>>>> >>>>> It's really strange that >>>>> `-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/inc` is being >>>>> passed to clang, as shown by `emcc -E -v -x c /dev/null`. That does seem >>>>> to >>>>> be the culprit, but I don't know why that's happening or how to change it. >>>>> >>>>> Efrem Braun >>>>> >>>>> >>>>> On Wed, Nov 25, 2020 at 12:12 PM Efrem Braun <[email protected]> >>>>> wrote: >>>>> >>>>>> Yes, I followed the instructions given here: >>>>>> https://emscripten.org/docs/getting_started/downloads.html#sdk-download-and-install >>>>>> : >>>>>> git clone https://github.com/emscripten-core/emsdk.git >>>>>> cd emsdk >>>>>> ./emsdk install latest >>>>>> ./emsdk activate latest >>>>>> source ./emsdk_env.sh >>>>>> >>>>>> I just deleted the installation and tried those 5 steps again. I >>>>>> immediately ran `emcc -E -v -x c /dev/null`, and it again showed >>>>>> `/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include` as the >>>>>> first directory in the #include search path. >>>>>> >>>>>> Efrem Braun >>>>>> >>>>>> >>>>>> On Wed, Nov 25, 2020 at 12:03 PM gianluca torta <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> have you run emsdk_env.sh? >>>>>>> >>>>>>> Gianluca >>>>>>> >>>>>>> On Tuesday, November 24, 2020 at 5:45:09 PM UTC+1 [email protected] >>>>>>> wrote: >>>>>>> >>>>>>>> I installed emscripten using the standard instructions as per >>>>>>>> https://emscripten.org/docs/getting_started/downloads.html#installation-instructions. >>>>>>>> Running `emcc -v` gave me no errors, and the following message: >>>>>>>> ``` >>>>>>>> (base) edbraun@gs66-lostcheme emscripten % emcc -v >>>>>>>> emcc (Emscripten gcc/clang-like replacement + linker emulating GNU >>>>>>>> ld) 2.0.9 >>>>>>>> clang version 12.0.0 >>>>>>>> (/opt/s/w/ir/cache/git/chromium.googlesource.com-external-github.com-llvm-llvm--project >>>>>>>> 27e9f0f95ef7b144d008bc1cf1459dced6cb5842) >>>>>>>> Target: x86_64-apple-darwin19.6.0 >>>>>>>> Thread model: posix >>>>>>>> InstalledDir: /Users/edbraun/software/emsdk/upstream/bin >>>>>>>> shared:INFO: (Emscripten: Running sanity checks) >>>>>>>> ``` >>>>>>>> >>>>>>>> I then moved on to the tutorial. Running `emcc tests/hello_world.c` >>>>>>>> gave me errors however: >>>>>>>> ``` >>>>>>>> In file included from tests/hello_world.c:8: >>>>>>>> In file included from >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/stdio.h:64: >>>>>>>> In file included from >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:68: >>>>>>>> >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:807:2: >>>>>>>> error: Unsupported architecture >>>>>>>> #error Unsupported architecture >>>>>>>> ^ >>>>>>>> In file included from tests/hello_world.c:8: >>>>>>>> In file included from >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/stdio.h:64: >>>>>>>> In file included from >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:71: >>>>>>>> >>>>>>>> In file included from >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_types.h:27: >>>>>>>> >>>>>>>> In file included from >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/_types.h:33: >>>>>>>> >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/machine/_types.h:34:2: >>>>>>>> error: architecture not supported >>>>>>>> #error architecture not supported >>>>>>>> ^ >>>>>>>> In file included from tests/hello_world.c:8: In file included from >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/stdio.h:64: >>>>>>>> In file included from >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:71: >>>>>>>> In file included from >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_types.h:27: >>>>>>>> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/_types.h:55:9: >>>>>>>> error: unknown type name '__int64_t'; did you mean '__int128_t'? >>>>>>>> typedef >>>>>>>> __int64_t __darwin_blkcnt_t; /* total blocks */ ^~~~~~~~~ __int128_t >>>>>>>> note: '__int128_t' declared here >>>>>>>> ``` >>>>>>>> And so on. >>>>>>>> >>>>>>>> I'm having trouble debugging how the installation went wrong. Any >>>>>>>> tips? I'm running macOS Catalina 10.15.7 with the zsh shell. >>>>>>>> >>>>>>>> Efrem Braun >>>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to a topic in >>>>>>> the Google Groups "emscripten-discuss" group. >>>>>>> To unsubscribe from this topic, visit >>>>>>> https://groups.google.com/d/topic/emscripten-discuss/2Ot0ZQoK9is/unsubscribe >>>>>>> . >>>>>>> To unsubscribe from this group and all its topics, send an email to >>>>>>> [email protected]. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/emscripten-discuss/c319d3be-35b6-488d-8296-be3251529e77n%40googlegroups.com >>>>>>> <https://groups.google.com/d/msgid/emscripten-discuss/c319d3be-35b6-488d-8296-be3251529e77n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> >>>>>> -- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "emscripten-discuss" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/emscripten-discuss/2Ot0ZQoK9is/unsubscribe >>> . >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> >> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/emscripten-discuss/c375d3c0-dd42-4aa3-a469-468abec6be40n%40googlegroups.com >>> <https://groups.google.com/d/msgid/emscripten-discuss/c375d3c0-dd42-4aa3-a469-468abec6be40n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/emscripten-discuss/473cc9ad-e872-43a9-9bf8-a8b66c99a771n%40googlegroups.com > <https://groups.google.com/d/msgid/emscripten-discuss/473cc9ad-e872-43a9-9bf8-a8b66c99a771n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. 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