From 17b16696d4c5cc26ed956848f7d5e9fe59a09c0a Mon Sep 17 00:00:00 2001
From: Clemens Wasser <clemens.wasser@gmail.com>
Date: Sat, 17 Jun 2023 13:05:27 +0200
Subject: CMake: Add CMake_BUILD_PCH option
---
CMakeLists.txt | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c1d50ca..2823ca4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -131,6 +131,8 @@ if(CMake_BUILD_LTO)
endif()
endif()
+option(CMake_BUILD_PCH "Compile CMake with precompiled headers" OFF)
+
# Check whether to build support for the debugger mode.
if(NOT CMake_TEST_EXTERNAL_CMAKE)
if(NOT DEFINED CMake_ENABLE_DEBUGGER)
@@ -153,7 +155,6 @@ endif()
# simply to improve readability of the main script
#-----------------------------------------------------------------------
macro(CMAKE_HANDLE_SYSTEM_LIBRARIES)
- # Options have dependencies.
include(CMakeDependentOption)
# Allow the user to enable/disable all system utility library options by
@@ -324,6 +325,9 @@ configure_file(.clang-tidy .clang-tidy COPYONLY)
option(CMake_RUN_IWYU "Run include-what-you-use with the compiler." OFF)
if(CMake_RUN_IWYU)
+ if(CMake_BUILD_PCH)
+ message(FATAL_ERROR "CMake_RUN_IWYU and CMake_BUILD_PCH are ON, but they are incompatible!")
+ endif()
find_program(IWYU_COMMAND NAMES include-what-you-use iwyu)
if(NOT IWYU_COMMAND)
message(FATAL_ERROR "CMake_RUN_IWYU is ON but include-what-you-use is not found!")
--
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