Opened 4 years ago
Last modified 4 years ago
#60449 closed defect
gcc10 missing header <wchar.h> — at Version 4
Reported by: | haberg-1 (Hans Åberg) | Owned by: | |
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Priority: | Normal | Milestone: | |
Component: | ports | Version: | 2.6.2 |
Keywords: | catalina | Cc: | cjones051073 (Chris Jones) |
Port: | gcc10 |
Description (last modified by ryandesign (Ryan Carsten Schmidt))
When installing gcc10 and compiling externally with /opt/local/bin/g++-mp-10 the error below appears, possibly because system headers that GCC relies on, have on MacOS 10.5 been moved away from /usr/include/.
In file included from /opt/local/include/gcc10/c++/bits/postypes.h:40, from /opt/local/include/gcc10/c++/iosfwd:40, from /opt/local/include/gcc10/c++/ios:38, from /opt/local/include/gcc10/c++/ostream:38, from /opt/local/include/gcc10/c++/iostream:39, from c++version.cc:2: /opt/local/include/gcc10/c++/cwchar:44:10: fatal error: wchar.h: No such file or directory 44 | #include <wchar.h> | ^~~~~~~~~ compilation terminated.
Change History (4)
comment:1 Changed 4 years ago by cjones051073 (Chris Jones)
comment:2 Changed 4 years ago by cjones051073 (Chris Jones)
b.t.w. another option is to run your compilation through xcrun. e.g.
> xcrun g++-mp-10 ./test.cpp
comment:3 Changed 4 years ago by cjones051073 (Chris Jones)
Cc: | cjones051073 added |
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comment:4 Changed 4 years ago by ryandesign (Ryan Carsten Schmidt)
Description: | modified (diff) |
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Yes, this is likely due to the removal of /usr/include
Like clang, gcc now respects your SDKROOT setting, so this is the recommendation now. i.e.
then you should be fine.
Another option is to install the command line tools package.