Move gcc dangling-reference check to GCC>=13. (#19772)
This should fix the error reported at
https://github.com/iree-org/iree/pull/19758#discussion_r1925623090 on
older gcc versions: `cc1plus: error: unrecognized command line option
'-Wno-dangling-reference' [-Werror]`
diff --git a/build_tools/cmake/iree_copts.cmake b/build_tools/cmake/iree_copts.cmake
index ccd952d..9bbaae2 100644
--- a/build_tools/cmake/iree_copts.cmake
+++ b/build_tools/cmake/iree_copts.cmake
@@ -248,6 +248,8 @@
"-Wno-unknown-pragmas"
"-Wno-unused-but-set-variable"
"-Wno-misleading-indentation"
+
+ GCC_GTE_13
# False positives? Not useful? https://stackoverflow.com/a/78760067
$<$<COMPILE_LANGUAGE:CXX>:-Wno-dangling-reference>
diff --git a/build_tools/cmake/iree_macros.cmake b/build_tools/cmake/iree_macros.cmake
index 58e2146..bade0de 100644
--- a/build_tools/cmake/iree_macros.cmake
+++ b/build_tools/cmake/iree_macros.cmake
@@ -390,7 +390,7 @@
_IREE_SELECTS
""
""
- "ALL;CLANG;CLANG_GTE_10;CLANG_GTE_12;CLANG_CL;MSVC;GCC;CLANG_OR_GCC;MSVC_OR_CLANG_CL"
+ "ALL;CLANG;CLANG_GTE_10;CLANG_GTE_12;CLANG_CL;MSVC;GCC;GCC_GTE_13;CLANG_OR_GCC;MSVC_OR_CLANG_CL"
)
# OPTS is a variable containing the *name* of the variable being populated, so
# we need to dereference it twice.
@@ -399,6 +399,9 @@
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
list(APPEND _OPTS "${_IREE_SELECTS_GCC}")
list(APPEND _OPTS "${_IREE_SELECTS_CLANG_OR_GCC}")
+ if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 13)
+ list(APPEND _OPTS ${_IREE_SELECTS_GCC_GTE_13})
+ endif()
elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
if(MSVC)
list(APPEND _OPTS ${_IREE_SELECTS_CLANG_CL})
