From b3212163ecfc2dde84eaeb301fccc5bb0b624471 Mon Sep 17 00:00:00 2001
From: Theodore Kisner <tskisner.public@gmail.com>
Date: Mon, 25 May 2020 22:09:37 -0700
Subject: [PATCH] Support installation of a static library.

---
 src/libaatm/CMakeLists.txt | 32 ++++++++++++++++++++++++--------
 src/test/CMakeLists.txt    |  2 +-
 2 files changed, 25 insertions(+), 9 deletions(-)

diff --git a/src/libaatm/CMakeLists.txt b/src/libaatm/CMakeLists.txt
index 16ad59a..a620e55 100644
--- a/src/libaatm/CMakeLists.txt
+++ b/src/libaatm/CMakeLists.txt
@@ -1,6 +1,6 @@
 
-# Name of the internal static library
-set(AATM_LIB aatm_)
+# Name of the static library
+set(AATM_STATIC aatm_static)
 
 # Name of loadable module / shared library
 set(AATM_MOD aatm)
@@ -29,11 +29,22 @@ set(AATM_SOURCES
     src/ATMWVRMeasurement.cpp
 )
 
-# Add the internal library target
+# Add the internal object library target
 
-add_library(${AATM_LIB} STATIC ${AATM_SOURCES})
+add_library(aatmobj OBJECT ${AATM_SOURCES})
+set_property(TARGET aatmobj PROPERTY POSITION_INDEPENDENT_CODE 1)
 
-target_include_directories(${AATM_LIB} PUBLIC
+target_include_directories(aatmobj PRIVATE
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+    $<INSTALL_INTERFACE:include>
+    src
+)
+
+# Static library
+
+add_library(${AATM_STATIC} STATIC $<TARGET_OBJECTS:aatmobj>)
+
+target_include_directories(${AATM_STATIC} PUBLIC
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
     $<INSTALL_INTERFACE:include>
     PRIVATE src
@@ -41,14 +52,19 @@ target_include_directories(${AATM_LIB} PUBLIC
 
 # Now define rules for the shared library
 
-add_library(${AATM_MOD} SHARED ${AATM_SOURCES})
+add_library(${AATM_MOD} SHARED $<TARGET_OBJECTS:aatmobj>)
 
 target_include_directories(${AATM_MOD} PUBLIC
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
     $<INSTALL_INTERFACE:include>
-    PRIVATE .
+    PRIVATE src
 )
 
 install(DIRECTORY include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 
-install(TARGETS ${AATM_MOD} DESTINATION ${CMAKE_INSTALL_LIBDIR})
+install(
+    TARGETS
+    ${AATM_MOD}
+    ${AATM_STATIC}
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}
+)
diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
index 6bda2ea..696dd31 100644
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -1,6 +1,6 @@
 
 # Name of the internal static library
-set(AATM_LIB aatm_)
+set(AATM_LIB aatm_static)
 
 #======================================================