Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-09-22 13:01:16 +03:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'fix/cxx_libgcc_cxx_self_reference' into 'master'

Browse Source 
fix(cxx): avoid self-referential generator expression in libgcc_cxx

See merge request espressif/esp-idf!48945
This commit is contained in:
Frantisek Hrbata
2026-08-06 15:33:03 +02:00
parent faa9d09760 841faa3614
commit 0e68539658
1 changed files with 8 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
components/cxx/CMakeLists.txt
View File

@@ -89,7 +89,14 @@ endif()
idf_component_get_property(cxx cxx COMPONENT_LIB)
add_library(libgcc_cxx INTERFACE)
target_link_libraries(libgcc_cxx INTERFACE ${CONFIG_COMPILER_RT_LIB_NAME} $<TARGET_FILE:${cxx}>)
target_link_libraries(${COMPONENT_LIB} PUBLIC libgcc_cxx)
# Link as INTERFACE, not PUBLIC: libgcc_cxx references $<TARGET_FILE:${cxx}>, so adding it to the
# cxx archive's own LINK_LIBRARIES would make the target depend on its own TARGET_FILE. CMake then
# needs the link language (hence SOURCES) to resolve that TARGET_FILE, which is a self-reference and
# fails generation with "The SOURCES of '...' use a generator expression that depends on the SOURCES
# themselves" whenever the cxx target is not itself link-consumed (e.g. cmakev2, IDFGH-16748). A
# static archive isn't linked, so its private link libraries are inert; consumers still get
# libgcc_cxx through INTERFACE_LINK_LIBRARIES, preserving link order.
target_link_libraries(${COMPONENT_LIB} INTERFACE libgcc_cxx)
if(NOT CONFIG_COMPILER_CXX_EXCEPTIONS)
target_link_libraries(${COMPONENT_LIB} INTERFACE "-u __cxx_fatal_exception")