From 361352673d3d564d600f89d5813c21a0a1e62562 Mon Sep 17 00:00:00 2001
From: Partha Biswas <partha.biswas1@morganstanley.com>
Date: Thu, 17 Aug 2023 11:10:29 +0000
Subject: [PATCH] Include additional headers during cmake install

---
 CMakeLists.txt | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9b4bb20..a430a23 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -75,15 +75,23 @@ target_include_directories( date INTERFACE
 # adding header sources just helps IDEs
 target_sources( date INTERFACE
     $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>/date/date.h
-    # the rest of these are not currently part of the public interface of the library:
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/solar_hijri.h>
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/islamic.h>
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/iso_week.h>
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/julian.h>
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>/date/solar_hijri.h
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>/date/islamic.h
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>/date/iso_week.h
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>/date/julian.h
 )
+
+set(TARGET_HEADERS
+    include/date/date.h
+    include/date/solar_hijri.h
+    include/date/islamic.h
+    include/date/iso_week.h
+    include/date/julian.h
+)
+
 if (CMAKE_VERSION VERSION_GREATER_EQUAL 3.15)
     # public headers will get installed:
-    set_target_properties( date PROPERTIES PUBLIC_HEADER include/date/date.h )
+    set_target_properties( date PROPERTIES PUBLIC_HEADER "${TARGET_HEADERS}" )
 endif ()
 
 # These used to be set with generator expressions,
@@ -186,7 +194,7 @@ if( ENABLE_DATE_INSTALL )
   export( TARGETS date NAMESPACE date:: FILE dateTargets.cmake )
   if (CMAKE_VERSION VERSION_LESS 3.15)
       install(
-          FILES include/date/date.h
+          FILES ${TARGET_HEADERS}
           DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date )
   endif ()