From 1934f025eb1dac52ce235a65e70384a991e9257b Mon Sep 17 00:00:00 2001
From: Hee Jong Park <hee.jong.park@dnv.com>
Date: Tue, 19 May 2026 10:55:35 +0200
Subject: [PATCH 1/4] Add conditional Doxygen documentation build in
 conanfile.py

---
 conanfile.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/conanfile.py b/conanfile.py
index c5a3b74..4e4797d 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -1,4 +1,5 @@
 import os
+import shutil
 
 from conan import ConanFile
 from conan.tools.cmake import CMake, cmake_layout
@@ -61,7 +62,8 @@ def build(self):
         cmake = CMake(self)
         cmake.configure()
         cmake.build()
-        cmake.build(target="doc")
+        if shutil.which("doxygen"):
+            cmake.build(target="doc")
         if self._is_tests_enabled():
             env = VirtualRunEnv(self).environment()
             env.define("CTEST_OUTPUT_ON_FAILURE", "ON")
@@ -72,7 +74,8 @@ def build(self):
     def package(self):
         cmake = CMake(self)
         cmake.install()
-        cmake.build(target="install-doc")
+        if shutil.which("doxygen"):
+            cmake.build(target="install-doc")
 
     def package_info(self):
         self.cpp_info.libs = [ "cosimc" ]

From 5b97fab29dc4b43822de4463d9a591e3dfeb89f5 Mon Sep 17 00:00:00 2001
From: Hee Jong Park <hee.jong.park@dnv.com>
Date: Tue, 19 May 2026 12:28:04 +0200
Subject: [PATCH 2/4] Add Doxygen as a tool requirement in conanfile.py

---
 conanfile.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/conanfile.py b/conanfile.py
index 4e4797d..57906d7 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -43,6 +43,7 @@ def configure(self):
     # Dependencies/requirements
     tool_requires = (
         "cmake/[>=4.0]",
+        "doxygen/1.17.0",
     )
     requires = (
         "libcosim/0.11.2@osp/stable",
@@ -62,8 +63,8 @@ def build(self):
         cmake = CMake(self)
         cmake.configure()
         cmake.build()
-        if shutil.which("doxygen"):
-            cmake.build(target="doc")
+        cmake.build(target="doc")
+
         if self._is_tests_enabled():
             env = VirtualRunEnv(self).environment()
             env.define("CTEST_OUTPUT_ON_FAILURE", "ON")
@@ -74,8 +75,7 @@ def build(self):
     def package(self):
         cmake = CMake(self)
         cmake.install()
-        if shutil.which("doxygen"):
-            cmake.build(target="install-doc")
+        cmake.build(target="install-doc")
 
     def package_info(self):
         self.cpp_info.libs = [ "cosimc" ]

From 2e17dece16763602f3a5b64118c7bdcbbd13c224 Mon Sep 17 00:00:00 2001
From: Hee Jong Park <hee.jong.park@dnv.com>
Date: Tue, 19 May 2026 12:39:57 +0200
Subject: [PATCH 3/4] Remove Doxygen as a mandatory tool requirement and
 conditionally build documentation if Doxygen is available

---
 conanfile.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/conanfile.py b/conanfile.py
index 57906d7..0c7fd43 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -43,7 +43,6 @@ def configure(self):
     # Dependencies/requirements
     tool_requires = (
         "cmake/[>=4.0]",
-        "doxygen/1.17.0",
     )
     requires = (
         "libcosim/0.11.2@osp/stable",
@@ -63,7 +62,8 @@ def build(self):
         cmake = CMake(self)
         cmake.configure()
         cmake.build()
-        cmake.build(target="doc")
+        if shutil.which("doxygen"):
+            cmake.build(target="doc")
 
         if self._is_tests_enabled():
             env = VirtualRunEnv(self).environment()
@@ -75,7 +75,8 @@ def build(self):
     def package(self):
         cmake = CMake(self)
         cmake.install()
-        cmake.build(target="install-doc")
+        if shutil.which("doxygen"):
+            cmake.build(target="install-doc")
 
     def package_info(self):
         self.cpp_info.libs = [ "cosimc" ]

From 8604429567791f55e7395a864a1c97e4722d5d2e Mon Sep 17 00:00:00 2001
From: Hee Jong Park <hee.jong.park@dnv.com>
Date: Tue, 19 May 2026 12:54:37 +0200
Subject: [PATCH 4/4] Remove cmake installation from CI configuration

---
 .github/workflows/ci-conan.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci-conan.yml b/.github/workflows/ci-conan.yml
index 0687eee..f8bff3b 100644
--- a/.github/workflows/ci-conan.yml
+++ b/.github/workflows/ci-conan.yml
@@ -26,7 +26,7 @@ jobs:
         run: |
           apt-get update
           apt-get install -y pipx doxygen
-          pipx install conan cmake
+          pipx install conan
           echo "$HOME/.local/bin" >> "$GITHUB_PATH"
       - name: Configure Conan
         run: |