From 0809ce7076e662953465f0a8d45127ef763e8e93 Mon Sep 17 00:00:00 2001
From: Timothy Pearson <tpearson@raptorengineering.com>
Date: Sun, 2 Oct 2016 17:21:40 -0500
Subject: Add install targets to CMake build system

---
 CMakeLists.txt   | 27 +++++++++++++++++++++++++++
 ffts.pc.cmake.in | 10 ++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 ffts.pc.cmake.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2028c03..459655e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,6 +17,10 @@ if(NOT CMAKE_BUILD_TYPE)
   set(CMAKE_BUILD_TYPE "Release")
 endif(NOT CMAKE_BUILD_TYPE)
 
+# installation parameters
+set(INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/include/ffts)
+set(LIB_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/lib)
+
 # common options
 option(ENABLE_NEON
   "Enables the use of NEON instructions." OFF
@@ -429,6 +433,8 @@ if(ENABLE_SHARED)
     OUTPUT_NAME ffts
     VERSION ${FFTS_MAJOR}.${FFTS_MINOR}.${FFTS_MICRO}
   )
+
+  install( TARGETS ffts_shared DESTINATION ${LIB_INSTALL_DIR} )
 endif(ENABLE_SHARED)
 
 if(ENABLE_STATIC)
@@ -441,6 +447,8 @@ if(ENABLE_STATIC)
     # On unix-like platforms the library is called "libffts.a"
     set_target_properties(ffts_static PROPERTIES OUTPUT_NAME ffts)
   endif(UNIX)
+
+  install( TARGETS ffts_static DESTINATION ${LIB_INSTALL_DIR} )
 endif(ENABLE_STATIC)
 
 if(ENABLE_STATIC OR ENABLE_SHARED)
@@ -460,3 +468,22 @@ if(ENABLE_STATIC OR ENABLE_SHARED)
     ${FFTS_EXTRA_LIBRARIES}
   )
 endif(ENABLE_STATIC OR ENABLE_SHARED)
+
+# generate packageconfig file
+if(UNIX)
+  include(FindPkgConfig QUIET)
+  if(PKG_CONFIG_FOUND)
+      # convert lists of link libraries into -lstdc++ -lm etc..
+      foreach(LIB ${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES} ${PLATFORM_LIBS})
+          set(PRIVATE_LIBS "${PRIVATE_LIBS} -l${LIB}")
+      endforeach()
+      # Produce a pkg-config file for linking against the shared lib
+      configure_file("ffts.pc.cmake.in" "ffts.pc" @ONLY)
+      install(FILES       "${CMAKE_CURRENT_BINARY_DIR}/ffts.pc"
+              DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig")
+  endif(PKG_CONFIG_FOUND)
+endif(UNIX)
+
+install( FILES
+    ${FFTS_HEADERS}
+  DESTINATION ${INCLUDE_INSTALL_DIR} )
diff --git a/ffts.pc.cmake.in b/ffts.pc.cmake.in
new file mode 100644
index 0000000..43f38e9
--- /dev/null
+++ b/ffts.pc.cmake.in
@@ -0,0 +1,10 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=${exec_prefix}
+libdir=${libdir}
+includedir=${includedir}
+
+Name: @CMAKE_PROJECT_NAME@
+Description: fast Fourier transform library
+Version: @FFTS_VERSION@
+Libs: -L${libdir} -lffts -lm
+Cflags: -I${includedir}/ffts
-- 
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