https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120406
Bug ID: 120406
Summary: Modules ICE when including spdlog in Global Module
Fragment
Product: gcc
Version: 15.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: chrisi57001 at gmail dot com
Target Milestone: ---
Code:
module;
#include <spdlog/spdlog.h>
export module logging;
class Logger {
spdlog::logger logger_{"Logger"};
};
CMake:
add_library(Logging)
target_sources(Logging
PUBLIC
FILE_SET CXX_MODULES
BASE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/modules
FILES modules/logger.cppm
)
target_compile_features(Logging PUBLIC cxx_std_23)
target_link_libraries(Logging PUBLIC spdlog::spdlog)
target_compile_options(Logging PUBLIC -freport-bug)
Output:
FAILED: CMakeFiles/Logging.dir/modules/logger.cppm.o
CMakeFiles/Logging.dir/logging.gcm
/sbin/g++ -DSPDLOG_COMPILED_LIB -DSPDLOG_FMT_EXTERNAL -isystem
/home/chris/.vcpkg-clion/vcpkg/installed/x64-linux/include -g -std=gnu++23
-fdiagnostics-color=always -freport-bug -MD -MT
CMakeFiles/Logging.dir/modules/logger.cppm.o -MF
CMakeFiles/Logging.dir/modules/logger.cppm.o.d -fmodules-ts
-fmodule-mapper=CMakeFiles/Logging.dir/modules/logger.cppm.o.modmap -MD
-fdeps-format=p1689r5 -x c++ -o CMakeFiles/Logging.dir/modules/logger.cppm.o -c
/home/chris/cpp/vulkan-modules/modules/logger.cppm
/home/chris/cpp/vulkan-modules/modules/logger.cppm:5:8: internal compiler
error: in core_vals, at cp/module.cc:6641
5 | export module logging;
| ^~~~~~
0x26d6c51 diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag
(*) [1], diagnostic_t)
???:0
0x2730d98 internal_error(char const*, ...)
???:0
0x7153c9 fancy_abort(char const*, int, char const*)
???:0
0x8583ea depset::hash::find_dependencies(module_state*)
???:0
0x8596e3 module_state::write_begin(elf_out*, cpp_reader*, module_state_config&,
unsigned int&)
???:0
0x86bb05 finish_module_processing(cpp_reader*)
???:0
0x7e989c c_parse_final_cleanups()
???:0
0xa1ea8a c_common_parse_file()
???:0
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ninja: build stopped: subcommand failed.
>From what I can tell this ICE is extremely inconsistent. Earlier I could
compile this without any issues despite including more dependencies and even
importing std. After recompiling the file (because I accidentally added a
newline) I ran into the ICE again. I feel like the fickleness might be an issue
with how CMake handles modules (maybe because of compilation order or using
wrongly generated files) but it is an ICE nonetheless.
