[committed] libstdc++: Define INSTANTIATE_FACET_ACCESSORS macro in compat source [PR103755]

[Jonathan Wakely <jwakely@redhat.com>]

This fixes a build failure on powerpc64le when using ieeelongdouble as
the default.

Tested x86_64-linux. Pushed to trunk.

-- >8 --

compatibility-ldbl-alt128.cc re-includes locale-inst-numeric.h and
locale-inst-monetary.h but wasn't defining the macros added in
r13-3888-gb3ac43a3c05744.

Put those macros in a new internal header that can be included everywhere
they're used.

libstdc++-v3/ChangeLog:

	PR libstdc++/103755
	* src/c++11/locale-inst-monetary.h: Include new header.
	* src/c++11/locale-inst-numeric.h: Likewise.
	* src/c++11/locale-inst.cc: Likewise.
	(INSTANTIATE_USE_FACET, INSTANTIATE_FACET_ACCESSORS): Move
	macro definitions to ...
	* src/c++11/facet_inst_macros.h: New file.
---
 libstdc++-v3/src/c++11/facet_inst_macros.h    | 17 +++++++++++++++++
 libstdc++-v3/src/c++11/locale-inst-monetary.h |  2 ++
 libstdc++-v3/src/c++11/locale-inst-numeric.h  |  2 ++
 libstdc++-v3/src/c++11/locale-inst.cc         | 12 +-----------
 4 files changed, 22 insertions(+), 11 deletions(-)
 create mode 100644 libstdc++-v3/src/c++11/facet_inst_macros.h

diff --git a/libstdc++-v3/src/c++11/facet_inst_macros.h b/libstdc++-v3/src/c++11/facet_inst_macros.h
new file mode 100644
index 00000000000..e0a07b1d2f7
--- /dev/null
+++ b/libstdc++-v3/src/c++11/facet_inst_macros.h
@@ -0,0 +1,17 @@
+#ifndef _FACET_INST_MACROS_H
+#define _FACET_INST_MACROS_H
+
+// These macros are used for explicit instantiation definitions in src/c++11/
+
+#define INSTANTIATE_USE_FACET(...)			    \
+  template const __VA_ARGS__*				    \
+    __try_use_facet< __VA_ARGS__ >(const locale&) noexcept; \
+  template const __VA_ARGS__&				    \
+    use_facet<__VA_ARGS__>(const locale&)
+
+#define INSTANTIATE_FACET_ACCESSORS(...)		    \
+  INSTANTIATE_USE_FACET(__VA_ARGS__);			    \
+  template bool						    \
+    has_facet<__VA_ARGS__>(const locale&) noexcept
+
+#endif // _FACET_INST_MACROS_H
diff --git a/libstdc++-v3/src/c++11/locale-inst-monetary.h b/libstdc++-v3/src/c++11/locale-inst-monetary.h
index ff8439857d2..26b1e33d3a7 100644
--- a/libstdc++-v3/src/c++11/locale-inst-monetary.h
+++ b/libstdc++-v3/src/c++11/locale-inst-monetary.h
@@ -26,6 +26,8 @@
 #define "This file should not be compiled directly, only included"
 #endif
 
+#include "facet_inst_macros.h"
+
 // This header is included multiple times, to instantiate these symbols
 // for char/wchar_t and for both std::string ABIs,
 // and (depending on the target) for two long double formats.
diff --git a/libstdc++-v3/src/c++11/locale-inst-numeric.h b/libstdc++-v3/src/c++11/locale-inst-numeric.h
index 4b970f75f6e..18514e892af 100644
--- a/libstdc++-v3/src/c++11/locale-inst-numeric.h
+++ b/libstdc++-v3/src/c++11/locale-inst-numeric.h
@@ -26,6 +26,8 @@
 #define "This file should not be compiled directly, only included"
 #endif
 
+#include "facet_inst_macros.h"
+
 namespace std _GLIBCXX_VISIBILITY(default)
 {
 #if ! _GLIBCXX_USE_CXX11_ABI
diff --git a/libstdc++-v3/src/c++11/locale-inst.cc b/libstdc++-v3/src/c++11/locale-inst.cc
index b264cb381ec..6767da74b74 100644
--- a/libstdc++-v3/src/c++11/locale-inst.cc
+++ b/libstdc++-v3/src/c++11/locale-inst.cc
@@ -43,19 +43,9 @@
 # define C_is_char
 #endif
 
-#define INSTANTIATE_USE_FACET(...)			    \
-  template const __VA_ARGS__*				    \
-    __try_use_facet< __VA_ARGS__ >(const locale&) noexcept; \
-  template const __VA_ARGS__&				    \
-    use_facet<__VA_ARGS__>(const locale&)		    \
-
-#define INSTANTIATE_FACET_ACCESSORS(...)		    \
-  INSTANTIATE_USE_FACET(__VA_ARGS__);			    \
-  template bool						    \
-    has_facet<__VA_ARGS__>(const locale&) noexcept
-
 #include "locale-inst-numeric.h"
 #include "locale-inst-monetary.h"
+#include "facet_inst_macros.h"
 
 namespace std _GLIBCXX_VISIBILITY(default)
 {
-- 
2.38.1