https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123797
Nathaniel Shead <nshead at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |nshead at gcc dot gnu.org
--- Comment #1 from Nathaniel Shead <nshead at gcc dot gnu.org> ---
Would you be able to share your exact build steps? I've tried the following
and it seems to work as you expect:
$ cat mapper.txt
/home/wreien/.local/include/c++/16.0.1/string string.gcm
$ cat test.cpp
import <string>;
$ g++ -fmodule-mapper=mapper.txt -fmodules -xc++-system-header string
$ g++ -fmodule-mapper=mapper.txt -fmodules -E test.cpp -o test.ii
$ cat test.ii
# 0 "test.cpp"
# 0 "<built-in>"
# 0 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3
# 0 "<command-line>" 2
# 1 "test.cpp"
import "/home/wreien/.local/include/c++/16.0.1/string";
$ g++ -fmodule-mapper=mapper.txt -fmodules test.ii && echo OK
OK
