[MacPorts] #60449: gcc10 missing header <wchar.h>

[MacPorts]

#60449: gcc10 missing header <wchar.h>
-----------------------+----------------------
  Reporter:  haberg-1  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.2
Resolution:            |   Keywords:  catalina
      Port:  gcc10     |
-----------------------+----------------------

Comment (by cjones051073):

 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.

 {{{
 export SDKROOT=`xcrun --show-sdk-path`
 }}}

 then you should be fine.

 {{{
  > cat test.cpp
 #include <iostream>
 #include <wchar.h>
 int main() {
   wchar_t a = 99;
   std::cout << "Test " << a << std::endl;
   return 0;
 }
  > g++-mp-10 ./test.cpp
  > ./a.out
 Test 99
 }}}

 Another option is to install the command line tools package.

-- 
Ticket URL: <https://trac.macports.org/ticket/60449#comment:1>
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