dcmtk: add missing dep on cmake

- Add a dep on cmake. Fixes build errors.
- Adjust the args to correctly create the array by appending '..'
- This error is unreported, but it works now with superenv.

Closes #16099.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/Library/Formula/dcmtk.rb b/Library/Formula/dcmtk.rb
index ff7d2b803..acc88379f 100644
--- a/Library/Formula/dcmtk.rb
+++ b/Library/Formula/dcmtk.rb
@@ -7,6 +7,7 @@ class Dcmtk < Formula
 
   option 'with-docs', 'Install development libraries/headers and HTML docs'
 
+  depends_on 'cmake' => :build
   depends_on :libpng
   depends_on 'libtiff'
   depends_on 'doxygen' if build.include? 'with-docs'
@@ -20,9 +21,10 @@ class Dcmtk < Formula
 
     args = std_cmake_args
     args << '-DDCMTK_WITH_DOXYGEN=YES' if build.include? 'with-docs'
+    args << '..'
 
     mkdir 'build' do
-      system 'cmake', '..', *args
+      system 'cmake', *args
       system 'make DOXYGEN' if build.include? 'with-docs'
       system 'make install'
     end