From 8ec582a6d08e588db9976e9c3b0451667b051638 Mon Sep 17 00:00:00 2001
From: Yaksh Bariya <yakshbari4@gmail.com>
Date: Fri, 13 Feb 2026 11:21:55 +0530
Subject: [PATCH] GH-138800: fix variable substitution in python3.pc for
 Android

$(BLDLIBRARY) substitution works in Makefiles where variables are
expanded at the time of execution. This expansion does not happen in
static files like .pc, so use value of BLDLIBRARY instead of trying to
substitute the value.

Patch stolen from downstream distribution of Python for Termux
(Android): https://github.com/termux/termux-packages/pull/27739

Preferably needs to be backported to both Python 3.13 as well as Python
3.14, along with the main branch

Fixes #138800
---
 Makefile.pre.in                                                 | 2 +-
 .../next/Build/2026-02-13-23-26-40.gh-issue-138800.wRCFW-.rst   | 1 +
 configure                                                       | 2 +-
 configure.ac                                                    | 2 +-
 4 files changed, 4 insertions(+), 3 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Build/2026-02-13-23-26-40.gh-issue-138800.wRCFW-.rst

diff --git a/Makefile.pre.in b/Makefile.pre.in
index a6beb96d12a3f2..912772d325b622 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -43,7 +43,6 @@ SOABI=		@SOABI@
 ABIFLAGS=	@ABIFLAGS@
 ABI_THREAD=	@ABI_THREAD@
 LDVERSION=	@LDVERSION@
-LIBPYTHON=@LIBPYTHON@
 GITVERSION=	@GITVERSION@
 GITTAG=		@GITTAG@
 GITBRANCH=	@GITBRANCH@
@@ -285,6 +284,7 @@ INSTSONAME=	@INSTSONAME@
 LIBRARY_DEPS=	@LIBRARY_DEPS@
 LINK_PYTHON_DEPS=@LINK_PYTHON_DEPS@
 PY_ENABLE_SHARED=	@PY_ENABLE_SHARED@
+LIBPYTHON=@LIBPYTHON@
 STATIC_LIBPYTHON=	@STATIC_LIBPYTHON@
 
 
diff --git a/Misc/NEWS.d/next/Build/2026-02-13-23-26-40.gh-issue-138800.wRCFW-.rst b/Misc/NEWS.d/next/Build/2026-02-13-23-26-40.gh-issue-138800.wRCFW-.rst
new file mode 100644
index 00000000000000..980c07fc8df123
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2026-02-13-23-26-40.gh-issue-138800.wRCFW-.rst
@@ -0,0 +1 @@
+fix variable substitution in python3.pc for Android
diff --git a/configure b/configure
index b1faeaf806a9c6..36f4c58583dd10 100755
--- a/configure
+++ b/configure
@@ -26953,7 +26953,7 @@ LIBPYTHON=''
 # On Android and Cygwin the shared libraries must be linked with libpython.
 if test "$PY_ENABLE_SHARED" = "1" && ( test -n "$ANDROID_API_LEVEL" || test "$MACHDEP" = "cygwin"); then
   MODULE_DEPS_SHARED="$MODULE_DEPS_SHARED \$(LDLIBRARY)"
-  LIBPYTHON="\$(BLDLIBRARY)"
+  LIBPYTHON="$(BLDLIBRARY)"
 fi
 
 # On iOS the shared libraries must be linked with the Python framework
diff --git a/configure.ac b/configure.ac
index 043ec957f40894..53bed63310e75a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6424,7 +6424,7 @@ LIBPYTHON=''
 # On Android and Cygwin the shared libraries must be linked with libpython.
 if test "$PY_ENABLE_SHARED" = "1" && ( test -n "$ANDROID_API_LEVEL" || test "$MACHDEP" = "cygwin"); then
   MODULE_DEPS_SHARED="$MODULE_DEPS_SHARED \$(LDLIBRARY)"
-  LIBPYTHON="\$(BLDLIBRARY)"
+  LIBPYTHON="$(BLDLIBRARY)"
 fi
 
 # On iOS the shared libraries must be linked with the Python framework