Thank you for your response. The work-around worked, should I still open a bug report?
Regards, Urjasvi Suthar On Monday, January 13, 2025 at 11:15:01 PM UTC+3 [email protected] wrote: > After a little investigation it seems like the problem is that when you > use `-std=c23` or `-std=c11` clang will define `__STRICT_ANSI__`. `strdup` > was not available in this mode, at least not prior to C23. So musl does > not declare it in that mode. > > You can work around this by using `-std=gnu23` or by adding > `-D_BSD_SOURCE`. > > cheers, > sam > > On Mon, Jan 13, 2025 at 11:58 AM Sam Clegg <[email protected]> wrote: > >> `strdup` is available in emscripten. Its part of the musl libc: >> https://github.com/emscripten-core/emscripten/blob/ebfeaf7a17f53ad322ea322efa8dfca5c752679b/system/lib/libc/musl/include/string.h#L70 >> >> It looks like using `-std=c23` is somehow suppressing that definition. >> Could you open a bug about that? >> >> cheers, >> sam >> >> On Mon, Jan 13, 2025 at 2:18 AM Urjasvi Suthar <[email protected]> >> wrote: >> >>> Hello, >>> I am trying to compile for wasm with emscripten but there seems to be no >>> 'strdup' C standard function. >>> ``` >>> src/token.c:169:10: error: use of undeclared identifier 'strdup'; did >>> you mean 'strupr'? >>> 169 | .str = strdup(str), >>> | ^~~~~~ >>> | strupr >>> /Users/x/emsdk/upstream/emscripten/cache/sysroot/include/compat/string.h:9:14: >>> >>> note: 'strupr' declared here >>> 9 | extern char* strupr(char *); >>> | ^ >>> 1 error generated. >>> emcc: error: '/Users/x/emsdk/upstream/bin/clang -target >>> wasm64-unknown-emscripten -fignore-exceptions -mno-bulk-memory >>> -mno-bulk-memory-opt -mno-nontrapping-fptoint -mllvm >>> -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm >>> -disable-lsr --sysroot=/Users/x/emsdk/upstream/emscripten/cache/sysroot >>> -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang >>> -iwithsysroot/include/fakesdl -Xclang -iwithsysroot/include/compat >>> -Iexternal/lz4/lib -std=c23 -Wall -Wextra src/token.c -c -o >>> /var/folders/7x/khcwdw3d39g8c3k03mcrcw3r0000gn/T/emscripten_temp_u3yctg1o/token_1.o' >>> >>> failed (returned 1) >>> ``` >>> Is this C23 standard not supported yet or am I missing something? >>> I know I can implement it myself easily (that what I am currently doing >>> as workaround), but less code and #ifdefs the better :) >>> >>> Regards, >>> Urjasvi Suthar >>> >>> -- >>> 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 visit >>> https://groups.google.com/d/msgid/emscripten-discuss/c666906e-ad13-4470-8f4a-3aae76b36925n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/emscripten-discuss/c666906e-ad13-4470-8f4a-3aae76b36925n%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 visit https://groups.google.com/d/msgid/emscripten-discuss/416bf0c0-9ed8-4e3d-8cc0-fd5faba9bf5dn%40googlegroups.com.
