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-rw-r--r--cmake/ccache.cmake36
1 files changed, 36 insertions, 0 deletions
diff --git a/cmake/ccache.cmake b/cmake/ccache.cmake
new file mode 100644
index 0000000000..099aa66411
--- /dev/null
+++ b/cmake/ccache.cmake
@@ -0,0 +1,36 @@
+# Copyright (c) 2023-present The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or https://opensource.org/license/mit/.
+
+if(NOT MSVC)
+ find_program(CCACHE_EXECUTABLE ccache)
+ if(CCACHE_EXECUTABLE)
+ execute_process(
+ COMMAND readlink -f ${CMAKE_CXX_COMPILER}
+ OUTPUT_VARIABLE compiler_resolved_link
+ ERROR_QUIET
+ OUTPUT_STRIP_TRAILING_WHITESPACE
+ )
+ if(CCACHE_EXECUTABLE STREQUAL compiler_resolved_link AND NOT WITH_CCACHE)
+ list(APPEND configure_warnings
+ "Disabling ccache was attempted using -DWITH_CCACHE=${WITH_CCACHE}, but ccache masquerades as the compiler."
+ )
+ set(WITH_CCACHE ON)
+ elseif(WITH_CCACHE)
+ list(APPEND CMAKE_C_COMPILER_LAUNCHER ${CCACHE_EXECUTABLE})
+ list(APPEND CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE_EXECUTABLE})
+ endif()
+ else()
+ set(WITH_CCACHE OFF)
+ endif()
+ if(WITH_CCACHE)
+ try_append_cxx_flags("-fdebug-prefix-map=A=B" TARGET core_interface SKIP_LINK
+ IF_CHECK_PASSED "-fdebug-prefix-map=${PROJECT_SOURCE_DIR}=."
+ )
+ try_append_cxx_flags("-fmacro-prefix-map=A=B" TARGET core_interface SKIP_LINK
+ IF_CHECK_PASSED "-fmacro-prefix-map=${PROJECT_SOURCE_DIR}=."
+ )
+ endif()
+endif()
+
+mark_as_advanced(CCACHE_EXECUTABLE)