Notre système de construction utilise gcc pour générer des dépendances d’en-tête du fichier source en fichiers * .d, lors de la compilation:
gcc -MD -MF foo.d -c foo.o foo.cc
Cependant, je ne peux pas comprendre comment produire des résultats similaires avec llvm clang.
Réponses:
19 pour la réponse № 1C’est exactement pareil:
clang -MD -MF foo.d -c foo.o foo.cc
Un exemple:
$ cat example.c
#include <stdio.h>
int main(int argc, char **argv)
{
printf("Hello, world!n");
return 0;
}
$ clang -MD -MF example-clang.d -c -o example-clang.o example.c
$ gcc -MD -MF example-gcc.d -c -o example-gcc.o example.c
$ cat example-clang.d
example-clang.o: example.c /usr/include/stdio.h /usr/include/_types.h
/usr/include/sys/_types.h /usr/include/sys/cdefs.h
/usr/include/machine/_types.h /usr/include/i386/_types.h
/usr/include/secure/_stdio.h /usr/include/secure/_common.h
$ cat example-gcc.d
example-gcc.o: example.c /usr/include/stdio.h /usr/include/_types.h
/usr/include/sys/_types.h /usr/include/sys/cdefs.h
/usr/include/machine/_types.h /usr/include/i386/_types.h
/usr/include/secure/_stdio.h /usr/include/secure/_common.h
$ diff example-clang.d example-gcc.d
1c1
< example-clang.o: example.c /usr/include/stdio.h /usr/include/_types.h
---
> example-gcc.o: example.c /usr/include/stdio.h /usr/include/_types.h