Build shared libraries by default, but honor BUILD_SHARED_LIBS

ament_tools/build_types/ament_cmake.py

@@ -50,6 +50,12 @@ def argument_preprocessor(self, args):
         # This requires special handling or argparse will complain about
         # unrecognized options.
         args, cmake_args = extract_argument_group(args, '--ament-cmake-args')
+
+        # Build shared libraries by default unless -DBUILD_SHARED_LIBS is passed
+        # as an argument to CMake
+        if not any([cmake_arg.startswith('-DBUILD_SHARED_LIBS=') for cmake_arg in cmake_args]):
+            cmake_args.append('-DBUILD_SHARED_LIBS=ON')
+
         extras = {
             'ament_cmake_args': cmake_args,
         }

ament_tools/build_types/cmake.py

@@ -77,6 +77,12 @@ def argument_preprocessor(self, args):
         # unrecognized options.
         args, cmake_args = extract_argument_group(args, '--cmake-args')
         args, ctest_args = extract_argument_group(args, '--ctest-args')
+
+        # Build shared libraries by default unless -DBUILD_SHARED_LIBS is passed
+        # as an argument to CMake
+        if not any([cmake_arg.startswith('-DBUILD_SHARED_LIBS=') for cmake_arg in cmake_args]):
+            cmake_args.append('-DBUILD_SHARED_LIBS=ON')
+
         extras = {
             'cmake_args': cmake_args,
             'ctest_args': ctest_args,