iains

for this (and three other) functions in this test Darwin's port is producing very different code from linux (and it's not especially obvious to me why it would, since I've not [at least inentionally] modified any vector stuff):

EDIT: explanation is that the Linux long double is 128 bit, where the Darwin ABI has long double same as double.

long double
check_l_pos (long double x, long double y)
{
  return x * __builtin_copysignl (1.0, y);
}

iains

    // Closure type that runs the original function with the supplied args.
    auto __callable = [&] {
	  std::__invoke(std::forward<_Callable>(__f),
			std::forward<_Args>(__args)...);
    };
    // Trampoline to call the actual fn; we will pass in the closure address.
    void (*__oc_tramp)(void*)
      = [] (void *ca) { (*static_cast<decltype(__callable)*>(ca))(); };

iains

diff --git a/Makefile.def b/Makefile.def
index 067d70a8e02..fbbcc3865e2 100644
--- a/Makefile.def
+++ b/Makefile.def
@@ -345,7 +345,7 @@ dependencies = { module=all-build-fixincludes; on=all-build-libiberty; };
 dependencies = { module=all-build-libcpp; on=all-build-libiberty; };
 
 // Host modules specific to gcc.
-dependencies = { module=configure-gcc; on=configure-gettext-runtime; };
+dependencies = { module=configure-gcc; on=configure-gettext; };

iains

these two files are in my dejagnu-boards/
I then use --target_board=dummy in my RUNTESTFLAGS

no-exe.exp:

proc no_exe_load { dest prog args } {
   verbose -log "no_exe_load $prog $args "
   return [list "xfail" $prog $args]
}

iains

From 0123fb126ce7817222aecb9545a3f26e6fc297b2 Mon Sep 17 00:00:00 2001
From: Iain Sandoe <iain@sandoe.co.uk>
Date: Tue, 10 Jan 2023 09:10:25 +0000
Subject: [PATCH] modula-2, driver: Try to fix up specs and command line v3.1

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

gcc/ChangeLog:

	* gcc.cc (fe_add_spec_function):

iains

diff --git a/gcc/cp/coroutines.cc b/gcc/cp/coroutines.cc
index 3f23317a315..c1a0d6c2283 100644
--- a/gcc/cp/coroutines.cc
+++ b/gcc/cp/coroutines.cc
@@ -32,6 +32,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "tree.h"
 #include "gcc-rich-location.h"
 #include "hash-map.h"
+#include "cgraph.h"
 

iains

/* ================= Debug. ================= */

#include "cxx-pretty-print.h"

extern void debug_tree (tree);

void
coro_dump_frame (tree fr)
{
  gcc_checking_assert (TREE_CODE (fr) == RECORD_TYPE);

iains

diff --git a/gcc/ada/Makefile.rtl b/gcc/ada/Makefile.rtl
index 59db72834dc..9e0c545a7be 100644
--- a/gcc/ada/Makefile.rtl
+++ b/gcc/ada/Makefile.rtl
@@ -2856,7 +2856,7 @@ LIBGNAT_TARGET_PAIRS += \
 
 # LIBGNAT_SRCS is the list of all C files (including headers) of the runtime
 # library.  LIBGNAT_OBJS is the list of object files for libgnat.
-# thread.cc is special as put into GNATRTL_TASKING_OBJS
+# thread.c is special as put into GNATRTL_TASKING_OBJS

iains

diff --git a/libstdc++-v3/include/c_compatibility/fenv.h b/libstdc++-v3/include/c_compatibility/fenv.h
index 0413e3b7c25..6b491ecf003 100644
--- a/libstdc++-v3/include/c_compatibility/fenv.h
+++ b/libstdc++-v3/include/c_compatibility/fenv.h
@@ -26,6 +26,10 @@
  *  This is a Standard C++ Library header.
  */
 
+#if !defined __cplusplus || defined _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+# include_next <fenv.h>

iains

From ea19ab9479aa40d602650734f943cb85a259bd25 Mon Sep 17 00:00:00 2001
From: Iain Sandoe <iain@sandoe.co.uk>
Date: Tue, 20 Jul 2021 14:00:38 +0100
Subject: [PATCH] c++tools, configury: Configure with C++; test checking status
 [PR98821].

The configure fragments need to be built with a C++ compiler.
The stand-alone server uses diagnostic mechanisms in common with
GCC, but needs to define implementations of the asserts and supporting
output funtions.