install: Don't ignore EXCLUDE_FROM_ALL when used with ALL_COMPONENTS

Fixes: #23494

2 files changed, 16 insertions, 6 deletions

diff --git a/Source/cmInstallGenerator.cxx b/Source/cmInstallGenerator.cxx
index 87110a9c4f..93abd45693 100644
--- a/Source/cmInstallGenerator.cxx
+++ b/Source/cmInstallGenerator.cxx
@@ -165,14 +165,22 @@ void cmInstallGenerator::AddInstallRule(
 }
 
 std::string cmInstallGenerator::CreateComponentTest(
-  const std::string& component, bool exclude_from_all)
+  const std::string& component, bool exclude_from_all, bool all_components)
 {
+  if (all_components) {
+    if (exclude_from_all) {
+      return "CMAKE_INSTALL_COMPONENT";
+    }
+    return {};
+  }
+
   std::string result = "CMAKE_INSTALL_COMPONENT STREQUAL \"";
   result += component;
   result += "\"";
   if (!exclude_from_all) {
     result += " OR NOT CMAKE_INSTALL_COMPONENT";
   }
+
   return result;
 }
 
@@ -181,10 +189,11 @@ void cmInstallGenerator::GenerateScript(std::ostream& os)
   // Track indentation.
   Indent indent;
 
+  std::string component_test = this->CreateComponentTest(
+    this->Component, this->ExcludeFromAll, this->AllComponents);
+
   // Begin this block of installation.
-  if (!this->AllComponents) {
-    std::string component_test =
-      this->CreateComponentTest(this->Component, this->ExcludeFromAll);
+  if (!component_test.empty()) {
     os << indent << "if(" << component_test << ")\n";
   }
 
@@ -193,7 +202,7 @@ void cmInstallGenerator::GenerateScript(std::ostream& os)
                               this->AllComponents ? indent : indent.Next());
 
   // End this block of installation.
-  if (!this->AllComponents) {
+  if (!component_test.empty()) {
     os << indent << "endif()\n\n";
   }
 }
diff --git a/Source/cmInstallGenerator.h b/Source/cmInstallGenerator.h
index d342c99261..9fcd284a91 100644
--- a/Source/cmInstallGenerator.h
+++ b/Source/cmInstallGenerator.h
@@ -78,7 +78,8 @@ protected:
   void GenerateScript(std::ostream& os) override;
 
   std::string CreateComponentTest(const std::string& component,
-                                  bool exclude_from_all);
+                                  bool exclude_from_all,
+                                  bool all_components = false);
 
   using TweakMethod =
     std::function<void(std::ostream& os, Indent indent,