From 73bcc302089e5680c82256c95c231bc7a9a5707f Mon Sep 17 00:00:00 2001
From: Farid Zakaria <farid.m.zakaria@gmail.com>
Date: Mon, 27 Oct 2025 10:56:59 -0700
Subject: [PATCH 1/4] Add support for pkg-config

---
 CMakeLists.txt | 29 ++++++++++++++++++++++++++++-
 json.cpp.pc.in |  8 ++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 json.cpp.pc.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 98a6419..8b4fbc9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,8 @@
 cmake_minimum_required(VERSION 3.15)
-project(jtjson)
+project(jtjson
+   LANGUAGES CXX
+   VERSION 0.1.0
+   DESCRIPTION "JSON for Classic C++")
 
 option(JSON_CPP_BUILD_TESTS "Enable building tests" ON)
 option(DOUBLE_CONVERSION_VENDORED "Use vendored double-conversion library" ON)
@@ -59,6 +62,23 @@ enable_testing()
     )
 endif()
 
+function(prefix_rel_path var_name install_dir)
+    if(IS_ABSOLUTE "${install_dir}")
+        set(${var_name} "${install_dir}" PARENT_SCOPE)
+    else()
+        set(${var_name} "\${prefix}/${install_dir}" PARENT_SCOPE)
+    endif()
+endfunction()
+
+# Generate pkg-config file
+prefix_rel_path(PKG_CONFIG_LIBDIR "${CMAKE_INSTALL_LIBDIR}")
+prefix_rel_path(PKG_CONFIG_INCLUDEDIR "${CMAKE_INSTALL_INCLUDEDIR}")
+configure_file(
+  "json.cpp.pc.in"
+  "json.cpp.pc"
+  @ONLY
+  )
+
 include(GNUInstallDirs)
 install(TARGETS json
     ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
@@ -66,3 +86,10 @@ install(TARGETS json
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
     PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
 )
+
+# pkg-config
+#  * <prefix>/lib/pkgconfig/double-conversion.pc
+install(
+    FILES "${CMAKE_CURRENT_BINARY_DIR}/double-conversion.pc"
+    DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig"
+)
\ No newline at end of file
diff --git a/json.cpp.pc.in b/json.cpp.pc.in
new file mode 100644
index 0000000..f4054e2
--- /dev/null
+++ b/json.cpp.pc.in
@@ -0,0 +1,8 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@PKG_CONFIG_LIBDIR@
+includedir=@PKG_CONFIG_INCLUDEDIR@
+
+Name: json.cpp
+Description: @CMAKE_PROJECT_DESCRIPTION@
+Libs: -L${libdir} -ljson
+Cflags: -I${includedir}
\ No newline at end of file

From 8e4d636e7c89a2fc899ee563b5ad1b2aa2861814 Mon Sep 17 00:00:00 2001
From: Farid Zakaria <farid.m.zakaria@gmail.com>
Date: Mon, 27 Oct 2025 10:59:04 -0700
Subject: [PATCH 2/4] Add requires for double-conversion

---
 CMakeLists.txt | 4 ++--
 json.cpp.pc.in | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8b4fbc9..7f879cd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -88,8 +88,8 @@ install(TARGETS json
 )
 
 # pkg-config
-#  * <prefix>/lib/pkgconfig/double-conversion.pc
+#  * <prefix>/lib/pkgconfig/json.cpp.pc
 install(
-    FILES "${CMAKE_CURRENT_BINARY_DIR}/double-conversion.pc"
+    FILES "${CMAKE_CURRENT_BINARY_DIR}/json.cpp.pc"
     DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig"
 )
\ No newline at end of file
diff --git a/json.cpp.pc.in b/json.cpp.pc.in
index f4054e2..6c1c2c9 100644
--- a/json.cpp.pc.in
+++ b/json.cpp.pc.in
@@ -5,4 +5,5 @@ includedir=@PKG_CONFIG_INCLUDEDIR@
 Name: json.cpp
 Description: @CMAKE_PROJECT_DESCRIPTION@
 Libs: -L${libdir} -ljson
-Cflags: -I${includedir}
\ No newline at end of file
+Cflags: -I${includedir}
+Requires.private: double-conversion
\ No newline at end of file

From 0a11e5c9e27d5edad72d28ec0d3214265bf8f009 Mon Sep 17 00:00:00 2001
From: Farid Zakaria <farid.m.zakaria@gmail.com>
Date: Mon, 27 Oct 2025 11:03:09 -0700
Subject: [PATCH 3/4] Add version

---
 json.cpp.pc.in | 1 +
 1 file changed, 1 insertion(+)

diff --git a/json.cpp.pc.in b/json.cpp.pc.in
index 6c1c2c9..3ca1610 100644
--- a/json.cpp.pc.in
+++ b/json.cpp.pc.in
@@ -4,6 +4,7 @@ includedir=@PKG_CONFIG_INCLUDEDIR@
 
 Name: json.cpp
 Description: @CMAKE_PROJECT_DESCRIPTION@
+Version: @PROJECT_VERSION@
 Libs: -L${libdir} -ljson
 Cflags: -I${includedir}
 Requires.private: double-conversion
\ No newline at end of file

From 2df1cbfce5a1e3595a007fde3e89a114dbe65189 Mon Sep 17 00:00:00 2001
From: Farid Zakaria <farid.m.zakaria@gmail.com>
Date: Mon, 27 Oct 2025 11:09:41 -0700
Subject: [PATCH 4/4] Add new line after files

---
 CMakeLists.txt | 2 +-
 json.cpp.pc.in | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7f879cd..5f2fcdc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -92,4 +92,4 @@ install(TARGETS json
 install(
     FILES "${CMAKE_CURRENT_BINARY_DIR}/json.cpp.pc"
     DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig"
-)
\ No newline at end of file
+)
diff --git a/json.cpp.pc.in b/json.cpp.pc.in
index 3ca1610..8d8ccf1 100644
--- a/json.cpp.pc.in
+++ b/json.cpp.pc.in
@@ -7,4 +7,4 @@ Description: @CMAKE_PROJECT_DESCRIPTION@
 Version: @PROJECT_VERSION@
 Libs: -L${libdir} -ljson
 Cflags: -I${includedir}
-Requires.private: double-conversion
\ No newline at end of file
+Requires.private: double-conversion