Update to build with gcc-15 by mitchute · Pull Request #11547 · NatLabRockies/EnergyPlus

mitchute · 2026-04-25T16:10:51Z

Pull request overview

Fixes Building with gcc 14.2 fails #11417 FMT 8.0.1 can't compile with modern GCC #11229

Description of the purpose of this PR

Pull Request Author

Reviewer

kiefernforst · 2026-05-27T21:41:59Z

Great, please merge this. The CMakeLists however must be rebased.

jmarrec

Just curious if ALL of these are required or not.

FWIW, locally I can't build without workarounds with apple-clang 21 on mac, so I have a subsequent PR coming at some point I guess

jmarrec · 2026-05-29T11:58:29Z

 ep_enable_pch(energypluslib)
+if(LINK_WITH_PYTHON)
+  set_source_files_properties(PluginManager.cc PythonEngine.cc PROPERTIES SKIP_PRECOMPILE_HEADERS ON)
+endif()


jmarrec · 2026-05-29T12:01:47Z

+    if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 15.0)
+      # GCC 15 emits false positives through libstdc++ when compiling bundled fmt 8.0.1 with -Werror
+      target_compile_options(project_warnings INTERFACE -Wno-restrict)
+    endif()


What error were you getting without this?

In function ‘_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = char*; _ForwardIterator = char*]’, inlined from ‘_ForwardIterator std::__uninitialized_copy_n(_RandomAccessIterator, _Size, _ForwardIterator, random_access_iterator_tag) [with _RandomAccessIterator = char*; _Size = int; _ForwardIterator = char*]’ at /usr/include/c++/15/bits/stl_uninitialized.h:1110:37, inlined from ‘_ForwardIterator std::uninitialized_copy_n(_InputIterator, _Size, _ForwardIterator) [with _InputIterator = char*; _Size = int; _ForwardIterator = char*]’ at /usr/include/c++/15/bits/stl_uninitialized.h:1156:41, inlined from ‘Char* fmt::v8::detail::write_significand(Char*, UInt, int, int, Char) [with Char = char; UInt = unsigned int; typename std::enable_if<std::is_integral<_Size>::value, int>::type <anonymous> = 0]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1731:30, inlined from ‘Char* fmt::v8::detail::write_significand(Char*, UInt, int, int, Char) [with Char = char; UInt = unsigned int; typename std::enable_if<std::is_integral<_Size>::value, int>::type <anonymous> = 0]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1723:13, inlined from ‘OutputIt fmt::v8::detail::write_significand(OutputIt, UInt, int, int, Char) [with OutputIt = fmt::v8::appender; UInt = unsigned int; Char = char; typename std::enable_if<(! std::is_pointer<typename std::remove_cv<typename std::remove_reference<_Tp>::type>::type>::value), int>::type <anonymous> = 0]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1745:31, inlined from ‘OutputIt fmt::v8::detail::write_significand(OutputIt, T, int, int, Char, const digit_grouping<Char>&) [with OutputIt = fmt::v8::appender; Char = char; T = unsigned int]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1772:20, inlined from ‘fmt::v8::detail::write_float<fmt::v8::appender, dragonbox::decimal_fp<float>, char>(fmt::v8::appender, const dragonbox::decimal_fp<float>&, const fmt::v8::basic_format_specs<char>&, float_specs, locale_ref)::<lambda(iterator)>’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1863:29, inlined from ‘constexpr OutputIt fmt::v8::detail::write_padded(OutputIt, const fmt::v8::basic_format_specs<Char>&, size_t, size_t, F&&) [with fmt::v8::align::type align = fmt::v8::align::right; OutputIt = fmt::v8::appender; Char = char; F = write_float<fmt::v8::appender, dragonbox::decimal_fp<float>, char>(fmt::v8::appender, const dragonbox::decimal_fp<float>&, const fmt::v8::basic_format_specs<char>&, float_specs, locale_ref)::<lambda(iterator)>&]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1342:9, inlined from ‘constexpr OutputIt fmt::v8::detail::write_padded(OutputIt, const fmt::v8::basic_format_specs<Char>&, size_t, F&&) [with fmt::v8::align::type align = fmt::v8::align::right; OutputIt = fmt::v8::appender; Char = char; F = write_float<fmt::v8::appender, dragonbox::decimal_fp<float>, char>(fmt::v8::appender, const dragonbox::decimal_fp<float>&, const fmt::v8::basic_format_specs<char>&, float_specs, locale_ref)::<lambda(iterator)>]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1351:29, inlined from ‘OutputIt fmt::v8::detail::write_float(OutputIt, const DecimalFP&, const fmt::v8::basic_format_specs<Char>&, float_specs, locale_ref) [with OutputIt = fmt::v8::appender; DecimalFP = dragonbox::decimal_fp<float>; Char = char]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1861:38: /usr/include/c++/15/bits/stl_uninitialized.h:273:31: error: ‘void* __builtin_memcpy(void*, const void*, long unsigned int)’ accessing between 2 and 2147483646 bytes at offsets 0 and 1 overlaps between 1 and 2147483645 bytes at offset 1 [-Werror=restrict] 273 | __builtin_memcpy(std::__niter_base(__result), | ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 274 | std::__niter_base(__first), | ~~~~~~~~~~~~~~~~~~~~~~~~~~~ 275 | __n * sizeof(_ValT));

mitchute

@jmarrec here are the errors I was seeing, and addressing with each specific change.

Ubuntu 26.04 LTS, gcc (Ubuntu 15.2.0-16ubuntu1) 15.2.0

mitchute · 2026-06-01T18:50:35Z

+    if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 15.0)
+      # GCC 15 emits false positives through libstdc++ when compiling bundled fmt 8.0.1 with -Werror
+      target_compile_options(project_warnings INTERFACE -Wno-restrict)
+    endif()


In function ‘_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = char*; _ForwardIterator = char*]’, inlined from ‘_ForwardIterator std::__uninitialized_copy_n(_RandomAccessIterator, _Size, _ForwardIterator, random_access_iterator_tag) [with _RandomAccessIterator = char*; _Size = int; _ForwardIterator = char*]’ at /usr/include/c++/15/bits/stl_uninitialized.h:1110:37, inlined from ‘_ForwardIterator std::uninitialized_copy_n(_InputIterator, _Size, _ForwardIterator) [with _InputIterator = char*; _Size = int; _ForwardIterator = char*]’ at /usr/include/c++/15/bits/stl_uninitialized.h:1156:41, inlined from ‘Char* fmt::v8::detail::write_significand(Char*, UInt, int, int, Char) [with Char = char; UInt = unsigned int; typename std::enable_if<std::is_integral<_Size>::value, int>::type <anonymous> = 0]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1731:30, inlined from ‘Char* fmt::v8::detail::write_significand(Char*, UInt, int, int, Char) [with Char = char; UInt = unsigned int; typename std::enable_if<std::is_integral<_Size>::value, int>::type <anonymous> = 0]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1723:13, inlined from ‘OutputIt fmt::v8::detail::write_significand(OutputIt, UInt, int, int, Char) [with OutputIt = fmt::v8::appender; UInt = unsigned int; Char = char; typename std::enable_if<(! std::is_pointer<typename std::remove_cv<typename std::remove_reference<_Tp>::type>::type>::value), int>::type <anonymous> = 0]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1745:31, inlined from ‘OutputIt fmt::v8::detail::write_significand(OutputIt, T, int, int, Char, const digit_grouping<Char>&) [with OutputIt = fmt::v8::appender; Char = char; T = unsigned int]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1772:20, inlined from ‘fmt::v8::detail::write_float<fmt::v8::appender, dragonbox::decimal_fp<float>, char>(fmt::v8::appender, const dragonbox::decimal_fp<float>&, const fmt::v8::basic_format_specs<char>&, float_specs, locale_ref)::<lambda(iterator)>’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1863:29, inlined from ‘constexpr OutputIt fmt::v8::detail::write_padded(OutputIt, const fmt::v8::basic_format_specs<Char>&, size_t, size_t, F&&) [with fmt::v8::align::type align = fmt::v8::align::right; OutputIt = fmt::v8::appender; Char = char; F = write_float<fmt::v8::appender, dragonbox::decimal_fp<float>, char>(fmt::v8::appender, const dragonbox::decimal_fp<float>&, const fmt::v8::basic_format_specs<char>&, float_specs, locale_ref)::<lambda(iterator)>&]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1342:9, inlined from ‘constexpr OutputIt fmt::v8::detail::write_padded(OutputIt, const fmt::v8::basic_format_specs<Char>&, size_t, F&&) [with fmt::v8::align::type align = fmt::v8::align::right; OutputIt = fmt::v8::appender; Char = char; F = write_float<fmt::v8::appender, dragonbox::decimal_fp<float>, char>(fmt::v8::appender, const dragonbox::decimal_fp<float>&, const fmt::v8::basic_format_specs<char>&, float_specs, locale_ref)::<lambda(iterator)>]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1351:29, inlined from ‘OutputIt fmt::v8::detail::write_float(OutputIt, const DecimalFP&, const fmt::v8::basic_format_specs<Char>&, float_specs, locale_ref) [with OutputIt = fmt::v8::appender; DecimalFP = dragonbox::decimal_fp<float>; Char = char]’ at /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/format.h:1861:38: /usr/include/c++/15/bits/stl_uninitialized.h:273:31: error: ‘void* __builtin_memcpy(void*, const void*, long unsigned int)’ accessing between 2 and 2147483646 bytes at offsets 0 and 1 overlaps between 1 and 2147483645 bytes at offset 1 [-Werror=restrict] 273 | __builtin_memcpy(std::__niter_base(__result), | ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 274 | std::__niter_base(__first), | ~~~~~~~~~~~~~~~~~~~~~~~~~~~ 275 | __n * sizeof(_ValT));

mitchute · 2026-06-01T18:54:01Z

@@ -63,7 +58,14 @@
 #    else
 #        include <Python.h>
 #    endif
+#endif

+// C++ Headers
+#include <algorithm>
+#include <format>
+
+// Third Party Headers
+#if LINK_WITH_PYTHON


from /home/nrel/EnergyPlus/src/EnergyPlus/PluginManager.cc:64: /home/nrel/.pyenv/versions/3.12.2/include/python3.12/pyconfig.h:1875:9: error: ‘_POSIX_C_SOURCE’ redefined [-Werror] 1875 | #define _POSIX_C_SOURCE 200809L | ^~~~~~~~~~~~~~~ In file included from /usr/include/x86_64-linux-gnu/c++/15/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/15/bits/c++config.h:727, from /usr/include/c++/15/bits/stl_algobase.h:59, from /usr/include/c++/15/algorithm:62, from /home/nrel/EnergyPlus/src/EnergyPlus/PluginManager.cc:49: /usr/include/features.h:319:10: note: this is the location of the previous definition 319 | # define _POSIX_C_SOURCE 202405L | ^~~~~~~~~~~~~~~ /home/nrel/.pyenv/versions/3.12.2/include/python3.12/pyconfig.h:1896:9: error: ‘_XOPEN_SOURCE’ redefined [-Werror] 1896 | #define _XOPEN_SOURCE 700 | ^~~~~~~~~~~~~ /usr/include/features.h:234:10: note: this is the location of the previous definition 234 | # define _XOPEN_SOURCE 800 | ^~~~~~~~~~~~~

mitchute · 2026-06-01T19:04:20Z

+	// Raw allocation size including optional alignment padding
 	static
-	void *
-	allocate( size_type const n )
+	size_type
+	allocation_size( size_type const n )


In file included from /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array.hh:19, from /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array1.hh:18, from /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array1D.hh:18, from /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array.functions.hh:17, from /home/nrel/EnergyPlus/src/EnergyPlus/WindowComplexManager.cc:54: In static member function ‘static void* ObjexxFCL::AlignedAllocator<T>::allocate(size_type) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’, inlined from ‘ObjexxFCL::CArrayA< <template-parameter-1-1> >::CArrayA(size_type) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’ at /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/CArrayA.hh:175:26, inlined from ‘void ObjexxFCL::Array< <template-parameter-1-1> >::operator=(const ObjexxFCL::Array< <template-parameter-1-1> >&) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’ at /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array.hh:406:17, inlined from ‘ObjexxFCL::Array1D< <template-parameter-1-1> >& ObjexxFCL::Array1D< <template-parameter-1-1> >::operator=(const ObjexxFCL::Array1D< <template-parameter-1-1> >&) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’ at /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array1D.hh:477:21, inlined from ‘EnergyPlus::DataBSDFWindow::BasisStruct& EnergyPlus::DataBSDFWindow::BasisStruct::operator=(const EnergyPlus::DataBSDFWindow::BasisStruct&)’ at /home/nrel/EnergyPlus/src/EnergyPlus/DataBSDFWindow.hh:148:12: /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/AlignedAllocator.hh:47:52: error: argument 1 value ‘18446744073709551591’ exceeds maximum object size 9223372036854775807 [-Werror=alloc-size-larger-than=] 47 | void * mem( n > 0u ? ::operator new( ( n * sizeof( T ) ) + ( OBJEXXFCL_ALIGN - 1 ) ) : nullptr ); | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/c++/15/bits/stl_iterator.h:75, from /usr/include/c++/15/bits/stl_algobase.h:67, from /usr/include/c++/15/bits/specfun.h:43, from /usr/include/c++/15/cmath:3913, from /home/nrel/EnergyPlus/src/EnergyPlus/WindowComplexManager.cc:50: /usr/include/c++/15/new: In function ‘EnergyPlus::DataBSDFWindow::BasisStruct& EnergyPlus::DataBSDFWindow::BasisStruct::operator=(const EnergyPlus::DataBSDFWindow::BasisStruct&)’: /usr/include/c++/15/new:137:26: note: in a call to allocation function ‘void* operator new(std::size_t)’ declared here 137 | _GLIBCXX_NODISCARD void* operator new(std::size_t) | ^~~~~~~~ In static member function ‘static void* ObjexxFCL::AlignedAllocator<T>::allocate(size_type) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’, inlined from ‘ObjexxFCL::CArrayA< <template-parameter-1-1> >::CArrayA(size_type) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’ at /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/CArrayA.hh:175:26, inlined from ‘void ObjexxFCL::Array< <template-parameter-1-1> >::operator=(const ObjexxFCL::Array< <template-parameter-1-1> >&) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’ at /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array.hh:406:17, inlined from ‘ObjexxFCL::Array1D< <template-parameter-1-1> >& ObjexxFCL::Array1D< <template-parameter-1-1> >::operator=(const ObjexxFCL::Array1D< <template-parameter-1-1> >&) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’ at /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array1D.hh:477:21, inlined from ‘EnergyPlus::DataBSDFWindow::BasisStruct& EnergyPlus::DataBSDFWindow::BasisStruct::operator=(const EnergyPlus::DataBSDFWindow::BasisStruct&)’ at /home/nrel/EnergyPlus/src/EnergyPlus/DataBSDFWindow.hh:148:12, inlined from ‘void EnergyPlus::WindowComplexManager::InitBSDFWindows(EnergyPlus::EnergyPlusData&)’ at /home/nrel/EnergyPlus/src/EnergyPlus/WindowComplexManager.cc:327:100: /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/AlignedAllocator.hh:47:52: error: argument 1 value ‘18446744073709551591’ exceeds maximum object size 9223372036854775807 [-Werror=alloc-size-larger-than=] 47 | void * mem( n > 0u ? ::operator new( ( n * sizeof( T ) ) + ( OBJEXXFCL_ALIGN - 1 ) ) : nullptr ); | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/15/new: In function ‘void EnergyPlus::WindowComplexManager::InitBSDFWindows(EnergyPlus::EnergyPlusData&)’: /usr/include/c++/15/new:137:26: note: in a call to allocation function ‘void* operator new(std::size_t)’ declared here 137 | _GLIBCXX_NODISCARD void* operator new(std::size_t) | ^~~~~~~~ In static member function ‘static void* ObjexxFCL::AlignedAllocator<T>::allocate(size_type) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’, inlined from ‘ObjexxFCL::CArrayA< <template-parameter-1-1> >::CArrayA(size_type) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’ at /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/CArrayA.hh:175:26, inlined from ‘void ObjexxFCL::Array< <template-parameter-1-1> >::operator=(const ObjexxFCL::Array< <template-parameter-1-1> >&) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’ at /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array.hh:406:17, inlined from ‘ObjexxFCL::Array1D< <template-parameter-1-1> >& ObjexxFCL::Array1D< <template-parameter-1-1> >::operator=(const ObjexxFCL::Array1D< <template-parameter-1-1> >&) [with T = EnergyPlus::DataBSDFWindow::BasisElemDescr]’ at /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/Array1D.hh:477:21, inlined from ‘EnergyPlus::DataBSDFWindow::BasisStruct& EnergyPlus::DataBSDFWindow::BasisStruct::operator=(const EnergyPlus::DataBSDFWindow::BasisStruct&)’ at /home/nrel/EnergyPlus/src/EnergyPlus/DataBSDFWindow.hh:148:12, inlined from ‘void EnergyPlus::WindowComplexManager::InitBSDFWindows(EnergyPlus::EnergyPlusData&)’ at /home/nrel/EnergyPlus/src/EnergyPlus/WindowComplexManager.cc:329:142: /home/nrel/EnergyPlus/third_party/ObjexxFCL/src/ObjexxFCL/AlignedAllocator.hh:47:52: error: argument 1 value ‘18446744073709551591’ exceeds maximum object size 9223372036854775807 [-Werror=alloc-size-larger-than=] 47 | void * mem( n > 0u ? ::operator new( ( n * sizeof( T ) ) + ( OBJEXXFCL_ALIGN - 1 ) ) : nullptr ); | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/15/new: In function ‘void EnergyPlus::WindowComplexManager::InitBSDFWindows(EnergyPlus::EnergyPlusData&)’: /usr/include/c++/15/new:137:26: note: in a call to allocation function ‘void* operator new(std::size_t)’ declared here 137 | _GLIBCXX_NODISCARD void* operator new(std::size_t) | ^~~~~~~~

mitchute · 2026-06-01T19:05:51Z


 #include <math.h>
 #include <algorithm>
+#include <cstdint>


[ 44%] Built target ConvertInputFormat /home/nrel/EnergyPlus/third_party/ssc/shared/lib_battery_dispatch.cpp: In constructor ‘dispatch_automatic_t::dispatch_automatic_t(battery_t*, double, double, double, int, double, double, double, double, double, double, double, int, int, std::size_t, std::size_t, double, bool, bool, bool, bool, std::vector<double>, int, std::vector<double>)’: /home/nrel/EnergyPlus/third_party/ssc/shared/lib_battery_dispatch.cpp:487:26: error: ‘SIZE_MAX’ was not declared in this scope 487 | _hour_last_updated = SIZE_MAX; | ^~~~~~~~ /home/nrel/EnergyPlus/third_party/ssc/shared/lib_battery_dispatch.cpp:28:1: note: ‘SIZE_MAX’ is defined in header ‘<cstdint>’; this is probably fixable by adding ‘#include <cstdint>’ 27 | #include <math.h> +++ |+#include <cstdint> 28 | #include <algorithm>

mitchute · 2026-06-01T19:07:45Z

+  if(CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 15.0)
+    add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-Wno-dangling-reference> $<$<COMPILE_LANGUAGE:CXX>:-Wno-restrict>)
+  endif()


/home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/core.h:1803:38: required from ‘constexpr fmt::v8::format_arg_store<Context, typename std::remove_cv<typename std::remove_reference<Args>::type>::type ...> fmt::v8::make_format_args(Args&& ...) [with Context = basic_format_context<appender, char>; Args = {std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&}]’ 1803 | return {std::forward<Args>(args)...}; | ^ /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/core.h:2979:44: required from ‘std::string fmt::v8::format(format_string<T ...>, T&& ...) [with T = {std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&}; std::string = std::__cxx11::basic_string<char>; format_string<T ...> = basic_format_string<char, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&>]’ 2979 | return vformat(fmt, fmt::make_format_args(args...)); | ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~ /home/nrel/EnergyPlus/third_party/btwxt/include/btwxt/logging.h:25:34: required from here 25 | ? fmt::format(" ({})", *(reinterpret_cast<std::string *>(message_context))) | ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/core.h:1637:15: error: possibly dangling reference to a temporary [-Werror=dangling-reference] 1637 | const auto& arg = arg_mapper<Context>().map(std::forward<T>(val)); | ^~~ /home/nrel/EnergyPlus/third_party/fmt-8.0.1/include/fmt/core.h:1637:21: note: ‘fmt::v8::detail::arg_mapper<fmt::v8::basic_format_context<fmt::v8::appender, char> >’ temporary created here 1637 | const auto& arg = arg_mapper<Context>().map(std::forward<T>(val)); | ^~~~~~~~~~~~~~~~~~~~~

mitchute · 2026-06-01T19:18:02Z

Since a lot of these are related to our use of an older version of fmt, and I was debating on whether to hold off on this until that is all ripped out. That may still be at least a month or so out, so there's probably no to wait.

update to build with gcc-15

8c8343a

mitchute self-assigned this Apr 25, 2026

mitchute added the Defect Includes code to repair a defect in EnergyPlus label Apr 25, 2026

mitchute marked this pull request as draft April 29, 2026 19:55

jmarrec reviewed May 29, 2026

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mitchute added 2 commits June 1, 2026 09:48

revert unnecessary change

408ad83

Merge branch 'develop' into gcc-15

58ba98e

mitchute commented Jun 1, 2026

View reviewed changes

mitchute marked this pull request as ready for review June 1, 2026 19:15

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Update to build with gcc-15#11547

Update to build with gcc-15#11547
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mitchute commented Apr 25, 2026

Pull request overview

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