add_compile_definitions: add new command

This command manages preprocessor definitions at directory level and
supports generator expressions.

Fixes: #15374

1 files changed, 20 insertions, 0 deletions

diff --git a/Source/cmAddCompileDefinitionsCommand.cxx b/Source/cmAddCompileDefinitionsCommand.cxx
new file mode 100644
index 0000000..0474819
--- /dev/null
+++ b/Source/cmAddCompileDefinitionsCommand.cxx
@@ -0,0 +1,20 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmAddCompileDefinitionsCommand.h"
+
+#include "cmMakefile.h"
+
+class cmExecutionStatus;
+
+bool cmAddCompileDefinitionsCommand::InitialPass(
+  std::vector<std::string> const& args, cmExecutionStatus&)
+{
+  if (args.empty()) {
+    return true;
+  }
+
+  for (std::string const& i : args) {
+    this->Makefile->AddCompileDefinition(i);
+  }
+  return true;
+}