https://github.com/Mbed-TLS/mbedtls/pull/9876
From: "Azamat H. Hackimov" <azamat.hackimov@gmail.com>
Date: Sun, 1 Dec 2024 00:54:10 +0300
Subject: Add version suffix for pkg-config files

Convert main library targets to slottable versions. This allows to
install major versions of MbedTLS simultaneously.

Dependent packages should use
`pkg-config --libs --cflags (mbedtls3|mbedx5093|mbedx5093)` in order to use
requested libraries.
--- a/pkgconfig/CMakeLists.txt
+++ b/pkgconfig/CMakeLists.txt
@@ -8,18 +8,18 @@ if(NOT DISABLE_PACKAGE_CONFIG_AND_INSTALL)
   set(PKGCONFIG_PROJECT_DESCRIPTION "Mbed TLS is a C library that implements cryptographic primitives, X.509 certificate manipulation and the SSL/TLS and DTLS protocols. Its small code footprint makes it suitable for embedded systems.")
   set(PKGCONFIG_PROJECT_HOMEPAGE_URL "https://www.trustedfirmware.org/projects/mbed-tls/")
 
-  configure_file(mbedcrypto.pc.in mbedcrypto.pc @ONLY)
+  configure_file(mbedcrypto.pc.in mbedcrypto${PROJECT_VERSION_MAJOR}.pc @ONLY)
     install(FILES
-    ${CMAKE_CURRENT_BINARY_DIR}/mbedcrypto.pc
+    ${CMAKE_CURRENT_BINARY_DIR}/mbedcrypto${PROJECT_VERSION_MAJOR}.pc
     DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
 
-  configure_file(mbedtls.pc.in mbedtls.pc @ONLY)
+  configure_file(mbedtls.pc.in mbedtls${PROJECT_VERSION_MAJOR}.pc @ONLY)
     install(FILES
-    ${CMAKE_CURRENT_BINARY_DIR}/mbedtls.pc
+    ${CMAKE_CURRENT_BINARY_DIR}/mbedtls${PROJECT_VERSION_MAJOR}.pc
     DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
 
-  configure_file(mbedx509.pc.in mbedx509.pc @ONLY)
+  configure_file(mbedx509.pc.in mbedx509${PROJECT_VERSION_MAJOR}.pc @ONLY)
     install(FILES
-    ${CMAKE_CURRENT_BINARY_DIR}/mbedx509.pc
+    ${CMAKE_CURRENT_BINARY_DIR}/mbedx509${PROJECT_VERSION_MAJOR}.pc
     DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
 endif()
--- a/pkgconfig/mbedcrypto.pc.in
+++ b/pkgconfig/mbedcrypto.pc.in
@@ -7,4 +7,4 @@ Description: @PKGCONFIG_PROJECT_DESCRIPTION@
 URL: @PKGCONFIG_PROJECT_HOMEPAGE_URL@
 Version: @PROJECT_VERSION@
 Cflags: -I"${includedir}"
-Libs: -L"${libdir}" -lmbedcrypto
+Libs: -L"${libdir}" -lmbedcrypto@PROJECT_VERSION_MAJOR@
--- a/pkgconfig/mbedtls.pc.in
+++ b/pkgconfig/mbedtls.pc.in
@@ -6,6 +6,6 @@ Name: @PROJECT_NAME@
 Description: @PKGCONFIG_PROJECT_DESCRIPTION@
 URL: @PKGCONFIG_PROJECT_HOMEPAGE_URL@
 Version: @PROJECT_VERSION@
-Requires.private: mbedcrypto mbedx509
+Requires.private: mbedcrypto@PROJECT_VERSION_MAJOR@ mbedx509@PROJECT_VERSION_MAJOR@
 Cflags: -I"${includedir}"
-Libs: -L"${libdir}" -lmbedtls
+Libs: -L"${libdir}" -lmbedtls@PROJECT_VERSION_MAJOR@
--- a/pkgconfig/mbedx509.pc.in
+++ b/pkgconfig/mbedx509.pc.in
@@ -6,6 +6,6 @@ Name: @PROJECT_NAME@
 Description: @PKGCONFIG_PROJECT_DESCRIPTION@
 URL: @PKGCONFIG_PROJECT_HOMEPAGE_URL@
 Version: @PROJECT_VERSION@
-Requires.private: mbedcrypto
+Requires.private: mbedcrypto@PROJECT_VERSION_MAJOR@
 Cflags: -I"${includedir}"
-Libs: -L"${libdir}" -lmbedx509
+Libs: -L"${libdir}" -lmbedx509@PROJECT_VERSION_MAJOR@
-- 
2.45.2