From 608cfb8b416d0c2f55efb94f57efcc86d74dbf80 Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
 <31488909+miss-islington@users.noreply.github.com>
Date: Thu, 30 May 2024 20:17:05 +0200
Subject: [PATCH] [3.13] gh-119729: Use 't' in pkg-config file name for
 free-threaded build (GH-119738) (#119797)

For example, the free-threaded build now generates
`lib/pkgconfig/python-3.13t.pc` and the debug build generates
`lib/pkgconfig/python-3.13d.pc`.
(cherry picked from commit 1c04c63ced5038e8f45a2aac7dc45f0815a4ddc5)

Co-authored-by: Sam Gross <colesbury@gmail.com>
---
 Doc/whatsnew/3.13.rst                              |  4 ++++
 Makefile.pre.in                                    | 14 +++++++-------
 .../2024-05-29-17-40-50.gh-issue-119729.k0xJ5U.rst |  5 +++++
 3 files changed, 16 insertions(+), 7 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Build/2024-05-29-17-40-50.gh-issue-119729.k0xJ5U.rst

diff --git a/Doc/whatsnew/3.13.rst b/Doc/whatsnew/3.13.rst
index 9fcead97f0248e..462a678aa4f739 100644
--- a/Doc/whatsnew/3.13.rst
+++ b/Doc/whatsnew/3.13.rst
@@ -2169,6 +2169,10 @@ Build Changes
   The bundled mimalloc has custom changes, see :gh:`113141` for details.
   (Contributed by Dino Viehland in :gh:`109914`.)
 
+* On POSIX systems, the pkg-config (``.pc``) filenames now include the ABI
+  flags.  For example, the free-threaded build generates ``python-3.13t.pc``
+  and the debug build generates ``python-3.13d.pc``.
+
 
 Porting to Python 3.13
 ======================
diff --git a/Makefile.pre.in b/Makefile.pre.in
index 6c2f3562be0da4..a3e8f121593762 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -40,6 +40,7 @@ LINKCC=		@LINKCC@
 AR=		@AR@
 READELF=	@READELF@
 SOABI=		@SOABI@
+ABIFLAGS=	@ABIFLAGS@
 LDVERSION=	@LDVERSION@
 MODULE_LDFLAGS=@MODULE_LDFLAGS@
 GITVERSION=	@GITVERSION@
@@ -150,7 +151,6 @@ INCLUDEDIR=	@includedir@
 CONFINCLUDEDIR=	$(exec_prefix)/include
 PLATLIBDIR=	@PLATLIBDIR@
 SCRIPTDIR=	$(prefix)/$(PLATLIBDIR)
-ABIFLAGS=	@ABIFLAGS@
 # executable name for shebangs
 EXENAME=	$(BINDIR)/python$(LDVERSION)$(EXE)
 # Variable used by ensurepip
@@ -2261,10 +2261,10 @@ bininstall: commoninstall altbininstall
 	-if test "$(VERSION)" != "$(LDVERSION)"; then \
 		rm -f $(DESTDIR)$(BINDIR)/python$(VERSION)-config; \
 		(cd $(DESTDIR)$(BINDIR); $(LN) -s python$(LDVERSION)-config python$(VERSION)-config); \
-		rm -f $(DESTDIR)$(LIBPC)/python-$(LDVERSION).pc; \
-		(cd $(DESTDIR)$(LIBPC); $(LN) -s python-$(VERSION).pc python-$(LDVERSION).pc); \
-		rm -f $(DESTDIR)$(LIBPC)/python-$(LDVERSION)-embed.pc; \
-		(cd $(DESTDIR)$(LIBPC); $(LN) -s python-$(VERSION)-embed.pc python-$(LDVERSION)-embed.pc); \
+		rm -f $(DESTDIR)$(LIBPC)/python-$(VERSION).pc; \
+		(cd $(DESTDIR)$(LIBPC); $(LN) -s python-$(LDVERSION).pc python-$(VERSION).pc); \
+		rm -f $(DESTDIR)$(LIBPC)/python-$(VERSION)-embed.pc; \
+		(cd $(DESTDIR)$(LIBPC); $(LN) -s python-$(LDVERSION)-embed.pc python-$(VERSION)-embed.pc); \
 	fi
 	-rm -f $(DESTDIR)$(BINDIR)/python3-config
 	(cd $(DESTDIR)$(BINDIR); $(LN) -s python$(VERSION)-config python3-config)
@@ -2701,8 +2701,8 @@ libainstall: all scripts
 	$(INSTALL_DATA) Modules/Setup.bootstrap $(DESTDIR)$(LIBPL)/Setup.bootstrap
 	$(INSTALL_DATA) Modules/Setup.stdlib $(DESTDIR)$(LIBPL)/Setup.stdlib
 	$(INSTALL_DATA) Modules/Setup.local $(DESTDIR)$(LIBPL)/Setup.local
-	$(INSTALL_DATA) Misc/python.pc $(DESTDIR)$(LIBPC)/python-$(VERSION).pc
-	$(INSTALL_DATA) Misc/python-embed.pc $(DESTDIR)$(LIBPC)/python-$(VERSION)-embed.pc
+	$(INSTALL_DATA) Misc/python.pc $(DESTDIR)$(LIBPC)/python-$(LDVERSION).pc
+	$(INSTALL_DATA) Misc/python-embed.pc $(DESTDIR)$(LIBPC)/python-$(LDVERSION)-embed.pc
 	$(INSTALL_SCRIPT) $(srcdir)/Modules/makesetup $(DESTDIR)$(LIBPL)/makesetup
 	$(INSTALL_SCRIPT) $(srcdir)/install-sh $(DESTDIR)$(LIBPL)/install-sh
 	$(INSTALL_SCRIPT) python-config.py $(DESTDIR)$(LIBPL)/python-config.py
diff --git a/Misc/NEWS.d/next/Build/2024-05-29-17-40-50.gh-issue-119729.k0xJ5U.rst b/Misc/NEWS.d/next/Build/2024-05-29-17-40-50.gh-issue-119729.k0xJ5U.rst
new file mode 100644
index 00000000000000..7ac300ecf40326
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2024-05-29-17-40-50.gh-issue-119729.k0xJ5U.rst
@@ -0,0 +1,5 @@
+On POSIX systems, the pkg-config (``.pc``) filenames now include the ABI
+flags, which may include debug ("d") and free-threaded ("t").  For example:
+* ``python-3.14.pc`` (default, non-debug build)
+* ``python-3.14d.pc`` (default, debug build)
+* ``python-3.14t.pc`` (free-threaded build)