Fix compilation in relase with LTO with gcc >=14 (#7327)

TheMarex · web-flow · commit 4c9ffaa1c52d · 2026-01-13T00:45:02.000+01:00
* Disable LTO because of uninitialized errors at LTO-stage Fixes issue #7268. * Add changelog entry
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -5,6 +5,7 @@
       - FIXED: Reduce MSVC compiler warnings by suppressing informational warnings while preserving bug-indicating warnings [#7253](https://github.com/Project-OSRM/osrm-backend/issues/7253)
       - FIXED: Merge `osrm_extract` and `osrm_guidance` to avoid circular dependencies. [#7315](https://github.com/Project-OSRM/osrm-backend/pull/7315)
       - FIXED: Work around compilation error due to a false-positive of array-bounds check in sol2 [#7317](https://github.com/Project-OSRM/osrm-backend/pull/7317)
+      - FIXED: Fix compilation with gcc >14 in release with LTO. [#7268](https://github.com/Project-OSRM/osrm-backend/issues/7268)
     - Misc:
       - ADDED: `SHM_LOCK_DIR` environment variable for shared memory lock file directory [#7312](https://github.com/Project-OSRM/osrm-backend/pull/7312)
       - FIXED: Fix JSON rendering of large OSM IDs (avoids scientific notation) and handle NaN/Infinity gracefully [#7016](https://github.com/Project-OSRM/osrm-backend/issues/7016)
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -173,6 +173,9 @@ add_library(SERVER OBJECT ${ServerGlob})
 
 set_target_properties(UTIL PROPERTIES LINKER_LANGUAGE CXX)
 
+# We will otherwise get false-positive errors in the linker stage (boost/qi) that can't be disabled with pragmas
+set_property(TARGET SERVER PROPERTY INTERPROCEDURAL_OPTIMIZATION FALSE)
+
 add_executable(osrm-routed src/tools/routed.cpp $<TARGET_OBJECTS:SERVER> $<TARGET_OBJECTS:UTIL>)
 add_executable(osrm-extract src/tools/extract.cpp)
 add_executable(osrm-partition src/tools/partition.cpp)
