Use dynamic run-time library in test_1767

From
https://docs.microsoft.com/en-us/cpp/build/reference/md-mt-ld-use-run-time-library?view=vs-2019:

/MD
Causes the application to use the multithread-specific and
DLL-specific version of the run-time library.

Fixes https://gitlab.com/graphviz/graphviz/-/issues/1794

diff --git a/rtest/test_regression.py b/rtest/test_regression.py
index 2ef4f434a468061925465e1cd7843bdea1968eb9..b6d466f72d1376c0b34c082edad4ac20ffb20cab 100644 (file)
--- a/rtest/test_regression.py
+++ b/rtest/test_regression.py
@@ -271,9 +271,11 @@ def test_1767():
 
     # compile our test code
     exe = os.path.join(tmp, 'a.exe')
+    rt_lib_option = '-MDd' if os.environ.get('configuration') == 'Debug' else '-MD'
+
     if platform.system() == 'Windows':
-        subprocess.check_call(['cl', c_src, '-Fe:', exe, '-nologo', '-link',
-          'cgraph.lib', 'gvc.lib'])
+        subprocess.check_call(['cl', c_src, '-Fe:', exe, '-nologo',
+          rt_lib_option, '-link', 'cgraph.lib', 'gvc.lib'])
     else:
         cc = os.environ.get('CC', 'cc')
         subprocess.check_call([cc, c_src, '-o', exe, '-lcgraph', '-lgvc'])