Add CMAKE_CURRENT_BINARY_DIR to include path for generated header.

[閱卜錄 (cireu)]

when I try build it out of source tree, compilers complains that cannot found pal_config.h

citreu@asus-laptop:~/tmp/psl-native-build$ LANG=C make
Consolidate compiler generated dependencies of target psl-native
[  1%] Building CXX object src/CMakeFiles/psl-native.dir/getppid.cpp.o
/home/citreu/gitrepos/PowerShell-Native/src/libpsl-native/src/getppid.cpp:4:10: fatal error: pal_config.h: No such file or directory
    4 | #include "pal_config.h"
      |          ^~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [src/CMakeFiles/psl-native.dir/build.make:160: src/CMakeFiles/psl-native.dir/getppid.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:169: src/CMakeFiles/psl-native.dir/all] Error 2
make: *** [Makefile:146: all] Error 2
citreu@asus-laptop:~/tmp/psl-native-build$ pwd
/home/citreu/tmp/psl-native-build

Adding CMAKE_CURRENT_BINARY_DIR to header include path should fix this issue.

[Andy Jordan (andyleejordan)]

You are right!