From d21a4a7741677e1518168cd60dd4ba816d547ac0 Mon Sep 17 00:00:00 2001
From: suda-morris <362953310@qq.com>
Date: Tue, 27 Oct 2026 19:10:37 +0800
Subject: [PATCH] CMake: Add option ENABLE_INSTALL

install() always ran, including install(EXPORT). Embedders that
add_subdirectory() TinyCBOR then write headers into the parent
prefix, and CMake may refuse the export when the tinycbor target
inherited foreign LINK_LIBRARIES.

Route every install() through tinycbor_install so the option can
skip those rules. Default is ON.
---
 CMakeLists.txt                 | 14 +++++++++++---
 cmake/PackageConfig.cmake      |  4 ++--
 tools/cbordump/CMakeLists.txt  |  2 +-
 tools/json2cbor/CMakeLists.txt |  2 +-
 4 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 985d0434..19cebad1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,6 +39,14 @@ if(WITH_FLOATING_POINT AND NOT WITH_FREESTANDING)
   option(BUILD_TOOLS "Compile the TinyCBOR tools" ON)
 endif()
 
+# Allow disabling installation when TinyCBOR is used via add_subdirectory().
+option(ENABLE_INSTALL "Install TinyCBOR files" ON)
+macro(tinycbor_install)
+  if(ENABLE_INSTALL)
+    install(${ARGN})
+  endif()
+endmacro()
+
 # Include additional modules that are used unconditionally
 include(GNUInstallDirs)
 include(GenerateExportHeader)
@@ -184,17 +192,17 @@ target_include_directories(tinycbor
   PUBLIC "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
 )
 
-install(FILES
+tinycbor_install(FILES
   ${PROJECT_SOURCE_DIR}/src/cbor.h
   ${PROJECT_BINARY_DIR}/tinycbor-version.h
   ${PROJECT_BINARY_DIR}/tinycbor-export.h
   DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/tinycbor
 )
-install(FILES
+tinycbor_install(FILES
   ${CMAKE_CURRENT_BINARY_DIR}/tinycbor.pc
   DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
 )
-install(
+tinycbor_install(
   TARGETS tinycbor
   EXPORT "${TARGETS_EXPORT_NAME}"
   ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}   # import library
diff --git a/cmake/PackageConfig.cmake b/cmake/PackageConfig.cmake
index 73cc9138..964a1e15 100644
--- a/cmake/PackageConfig.cmake
+++ b/cmake/PackageConfig.cmake
@@ -19,7 +19,7 @@ write_basic_package_version_file(
   COMPATIBILITY SameMinorVersion
 )
 
-install(FILES
+tinycbor_install(FILES
   "${PROJECT_BINARY_DIR}/${PROJECT_NAME}-config.cmake"
   "${PROJECT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake"
   COMPONENT devel
@@ -27,7 +27,7 @@ install(FILES
 )
 
 if (PROJECT_LIBRARIES OR PROJECT_STATIC_LIBRARIES)
-  install(
+  tinycbor_install(
     EXPORT "${TARGETS_EXPORT_NAME}"
     FILE ${TARGETS_EXPORT_NAME}.cmake
     DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
diff --git a/tools/cbordump/CMakeLists.txt b/tools/cbordump/CMakeLists.txt
index c03fc5ef..bee2361f 100644
--- a/tools/cbordump/CMakeLists.txt
+++ b/tools/cbordump/CMakeLists.txt
@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: MIT
 if(NOT WIN32)
   tinycbor_add_executable(cbordump cbordump.c)
-  install(TARGETS cbordump)
+  tinycbor_install(TARGETS cbordump)
 endif()
diff --git a/tools/json2cbor/CMakeLists.txt b/tools/json2cbor/CMakeLists.txt
index a8731144..d02e98a8 100644
--- a/tools/json2cbor/CMakeLists.txt
+++ b/tools/json2cbor/CMakeLists.txt
@@ -6,5 +6,5 @@ if(LIBCJSON_FOUND)
   tinycbor_add_executable(json2cbor json2cbor.c)
   target_include_directories(json2cbor SYSTEM PUBLIC ${LIBCJSON_INCLUDE_DIRS})
   target_link_libraries(json2cbor ${LIBCJSON_LIBRARIES})
-  install(TARGETS json2cbor)
+  tinycbor_install(TARGETS json2cbor)
 endif()