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-rw-r--r--eclass/cmake.eclass18
1 files changed, 18 insertions, 0 deletions
diff --git a/eclass/cmake.eclass b/eclass/cmake.eclass
index 083b566d261..59835b50f4c 100644
--- a/eclass/cmake.eclass
+++ b/eclass/cmake.eclass
@@ -362,6 +362,17 @@ cmake_src_configure() {
# Fix xdg collision with sandbox
xdg_environment_reset
+ local file ver cmreq_isold
+ while read -d '' -r file ; do
+ ver=$(sed -ne "/cmake_minimum_required/ s/.*\(\.\.\.\|\s\)\([0-9.]*\)\([)]\|\s\).*$/\2/p" \
+ "${file}" 2>/dev/null \
+ )
+
+ if [[ -n $ver ]] && ver_test $ver -lt "3.5"; then
+ cmreq_isold=true
+ fi
+ done < <(find "${CMAKE_USE_DIR}" -type f -iname "CMakeLists.txt" -print0)
+
# Prepare Gentoo override rules (set valid compiler, append CPPFLAGS etc.)
local build_rules=${BUILD_DIR}/gentoo_rules.cmake
@@ -543,6 +554,13 @@ cmake_src_configure() {
cmakeargs+=( -C "${CMAKE_EXTRA_CACHE_FILE}" )
fi
+ if [[ ${cmreq_isold} ]]; then
+ eqawarn "QA Notice: Compatibility with CMake < 3.5 has been removed from CMake 4,"
+ eqawarn "${CATEGORY}/${PN} will fail to build w/o a fix."
+ eqawarn "See also tracker bug #951350; check existing bug or file a new one for"
+ eqawarn "this package."
+ fi
+
pushd "${BUILD_DIR}" > /dev/null || die
debug-print "${LINENO} ${ECLASS} ${FUNCNAME}: mycmakeargs is ${mycmakeargs_local[*]}"
echo "${CMAKE_BINARY}" "${cmakeargs[@]}" "${CMAKE_USE_DIR}"