WITH_tk shell output

$ make
Scanning dependencies of target netgen_project
[  3%] Creating directories for 'netgen_project'
[  7%] No download step for 'netgen_project'
[ 11%] No patch step for 'netgen_project'
[ 15%] No update step for 'netgen_project'
[ 19%] No configure step for 'netgen_project'
[ 23%] Performing build step for 'netgen_project'
Scanning dependencies of target project_tcl
[  2%] Creating directories for 'project_tcl'
[  5%] Performing download step (download, verify and extract) for 'project_tcl'
-- project_tcl download command succeeded.  See also /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tcl-stamp/project_tcl-download-*.log
[  8%] No patch step for 'project_tcl'
[ 11%] No update step for 'project_tcl'
[ 14%] Performing configure step for 'project_tcl'
-- project_tcl configure command succeeded.  See also /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tcl-stamp/project_tcl-configure-*.log
[ 17%] Performing build step for 'project_tcl'
-- project_tcl build command succeeded.  See also /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tcl-stamp/project_tcl-build-*.log
[ 20%] Performing install step for 'project_tcl'
-- project_tcl install command succeeded.  See also /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tcl-stamp/project_tcl-install-*.log
[ 23%] Completed 'project_tcl'
[ 23%] Built target project_tcl
Scanning dependencies of target project_tk
[ 26%] Creating directories for 'project_tk'
[ 29%] Performing download step (download, verify and extract) for 'project_tk'
-- project_tk download command succeeded.  See also /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk-stamp/project_tk-download-*.log
[ 32%] No patch step for 'project_tk'
[ 35%] No update step for 'project_tk'
[ 38%] Performing configure step for 'project_tk'
-- project_tk configure command succeeded.  See also /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk-stamp/project_tk-configure-*.log
[ 41%] Performing build step for 'project_tk'
CMake Error at /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk-stamp/project_tk-build-RelWithDebInfo.cmake:49 (message):
  Command failed: 2

   'make' '-j4' 'binaries' 'libraries'

  See also

    /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk-stamp/project_tk-build-*.log


make[5]: *** [dependencies/src/project_tk-stamp/project_tk-build] Error 1
make[4]: *** [CMakeFiles/project_tk.dir/all] Error 2
make[3]: *** [all] Error 2
make[2]: *** [dependencies/Stamp/netgen_project/netgen_project-build] Error 2
make[1]: *** [CMakeFiles/netgen_project.dir/all] Error 2
make: *** [all] Error 2

WITH_tk_project_tk-build-err.log

/Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk/macosx/../generic/tkCanvUtil.c:1708:2: warning: implicit declaration of function 'assert' is invalid in C99 [-Wimplicit-function-declaration]
        assert(numOutput == numVertex);
        ^
1 warning generated.
/Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk/macosx/../macosx/tkMacOSXDraw.c:226:1: error: conflicting types for 'XCopyArea'
XCopyArea(
^
/usr/local/opt/tcl-tk/include/tkIntXlibDecls.h:463:14: note: previous declaration is here
EXTERN void             XCopyArea(Display *d, Drawable dr1, Drawable dr2,
                        ^
/Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk/macosx/../macosx/tkMacOSXDraw.c:305:1: error: conflicting types for 'XCopyPlane'
XCopyPlane(
^
/usr/local/opt/tcl-tk/include/tkIntXlibDecls.h:467:14: note: previous declaration is here
EXTERN void             XCopyPlane(Display *d, Drawable dr1, Drawable dr2,
                        ^
/Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk/macosx/../macosx/tkMacOSXDraw.c:411:9: error: returning 'void' from a function with incompatible result type 'int'
        return XCopyArea(display, src, dst, gc, src_x, src_y, width, height,
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk/macosx/../macosx/tkMacOSXDraw.c:854:1: error: conflicting types for 'XFillPolygon'
XFillPolygon(
^
/usr/local/opt/tcl-tk/include/tkIntXlibDecls.h:494:14: note: previous declaration is here
EXTERN void             XFillPolygon(Display *d, Drawable dr, GC g,
                        ^
/Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk/macosx/../macosx/tkMacOSXDraw.c:913:1: error: conflicting types for 'XDrawRectangle'
XDrawRectangle(
^
/usr/local/opt/tcl-tk/include/tkIntXlibDecls.h:487:14: note: previous declaration is here
EXTERN void             XDrawRectangle(Display *d, Drawable dr, GC g, int i1,
                        ^
/Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk/macosx/../macosx/tkMacOSXDraw.c:1123:1: error: conflicting types for 'XDrawArc'
XDrawArc(
^
/usr/local/opt/tcl-tk/include/tkIntXlibDecls.h:480:14: note: previous declaration is here
EXTERN void             XDrawArc(Display *d, Drawable dr, GC g, int i1,
                        ^
/Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk/macosx/../macosx/tkMacOSXDraw.c:1276:1: error: conflicting types for 'XFillArc'
XFillArc(
^
/usr/local/opt/tcl-tk/include/tkIntXlibDecls.h:490:14: note: previous declaration is here
EXTERN void             XFillArc(Display *d, Drawable dr, GC g, int i1,
                        ^
7 errors generated.
make[6]: *** [tkMacOSXDraw.o] Error 1
make[6]: *** Waiting for unfinished jobs....

WITHOUT_TK shell output

$ brew uninstall tcl-tk
Uninstalling /usr/local/Cellar/tcl-tk/8.6.9_1... (2,983 files, 50.1MB)
~/.../ngsolve/ngsolve-build $ make
[  3%] Performing build step for 'netgen_project'
[ 23%] Built target project_tcl
[ 26%] Performing build step for 'project_tk'
CMake Error at /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk-stamp/project_tk-build-RelWithDebInfo.cmake:49 (message):
  Command failed: 2

   'make' '-j4' 'binaries' 'libraries'

  See also

    /Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk-stamp/project_tk-build-*.log


make[5]: *** [dependencies/src/project_tk-stamp/project_tk-build] Error 1
make[4]: *** [CMakeFiles/project_tk.dir/all] Error 2
make[3]: *** [all] Error 2
make[2]: *** [dependencies/Stamp/netgen_project/netgen_project-build] Error 2
make[1]: *** [CMakeFiles/netgen_project.dir/all] Error 2
make: *** [all] Error 2

WITHOUT_tk_project_tk-build-err.log

/Users/janwesterdiep/Downloads/ngsolve/ngsolve-build/netgen/dependencies/src/project_tk/macosx/../macosx/tkMacOSXHLEvents.c:150:9: warning: unused variable 'code' [-Wunused-variable]
    int code;
        ^
1 warning generated.
ld: warning: directory not found for option '-L/usr/local/opt/tcl-tk/lib'
Undefined symbols for architecture x86_64:
  "_assert", referenced from:
      _TkCanvTranslatePath in tkCanvUtil.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[6]: *** [Tk] Error 1