From c008398d4918ef94ab4d1ed0c4f57f63f8104aee Mon Sep 17 00:00:00 2001
From: David Seifert <soap@gentoo.org>
Date: Sun, 16 Apr 2017 00:59:28 +0200
Subject: [PATCH] Replace last occurrences of `include` install paths

* Distributions might need to change the header dir
* Also change the template paths in the `.pc` files to
  the idiomatic CMake `GNUInstallDirs` full paths,
  which are always correct, regardless of whether the
  user specified relative or absolute paths. This makes
  the build system somewhat easier and more idiomatic.
---
 BLAS/blas.pc.in        | 4 ++--
 CBLAS/CMakeLists.txt   | 2 +-
 CBLAS/cblas.pc.in      | 5 +++--
 CMakeLists.txt         | 6 ------
 LAPACKE/CMakeLists.txt | 2 +-
 LAPACKE/lapacke.pc.in  | 5 +++--
 lapack.pc.in           | 4 ++--
 7 files changed, 12 insertions(+), 16 deletions(-)

diff --git a/BLAS/blas.pc.in b/BLAS/blas.pc.in
index 4ad1bb0..3780977 100644
--- a/BLAS/blas.pc.in
+++ b/BLAS/blas.pc.in
@@ -1,5 +1,5 @@
-prefix=@prefix@
-libdir=@libdir@
+libdir=@CMAKE_INSTALL_FULL_LIBDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
 
 Name: BLAS
 Description: FORTRAN reference implementation of BLAS Basic Linear Algebra Subprograms
diff --git a/CBLAS/CMakeLists.txt b/CBLAS/CMakeLists.txt
index f7be6e2..d9fa245 100644
--- a/CBLAS/CMakeLists.txt
+++ b/CBLAS/CMakeLists.txt
@@ -28,7 +28,7 @@ endforeach()
 endmacro()
 
 append_subdir_files(CBLAS_INCLUDE "include")
-install(FILES ${CBLAS_INCLUDE} ${LAPACK_BINARY_DIR}/include/cblas_mangling.h DESTINATION include)
+install(FILES ${CBLAS_INCLUDE} ${LAPACK_BINARY_DIR}/include/cblas_mangling.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 
 # --------------------------------------------------
 if(BUILD_TESTING)
diff --git a/CBLAS/cblas.pc.in b/CBLAS/cblas.pc.in
index 7cf09f2..7c95ebb 100644
--- a/CBLAS/cblas.pc.in
+++ b/CBLAS/cblas.pc.in
@@ -1,9 +1,10 @@
-prefix=@prefix@
-libdir=@libdir@
+libdir=@CMAKE_INSTALL_FULL_LIBDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
 
 Name: CBLAS
 Description: C Standard Interface to BLAS Basic Linear Algebra Subprograms
 Version: @LAPACK_VERSION@
 URL: http://www.netlib.org/blas/#_cblas
 Libs: -L${libdir} -lcblas
+Cflags: -I${includedir}
 Requires.private: blas
diff --git a/CMakeLists.txt b/CMakeLists.txt
index eed3796..d8b3c95 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -108,12 +108,6 @@ macro(lapack_install_library lib)
 endmacro()
 
 set(PKG_CONFIG_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
-set(prefix ${CMAKE_INSTALL_PREFIX})
-if(NOT IS_ABSOLUTE ${CMAKE_INSTALL_LIBDIR})
-  set(libdir "\${prefix}/${CMAKE_INSTALL_LIBDIR}")
-else()
-  set(libdir "${CMAKE_INSTALL_LIBDIR}")
-endif()
 
 # --------------------------------------------------
 # Testing
diff --git a/LAPACKE/CMakeLists.txt b/LAPACKE/CMakeLists.txt
index d9a85ee..6812212 100644
--- a/LAPACKE/CMakeLists.txt
+++ b/LAPACKE/CMakeLists.txt
@@ -67,7 +67,7 @@ endif()
 target_link_libraries(lapacke PRIVATE ${LAPACK_LIBRARIES})
 
 lapack_install_library(lapacke)
-install(FILES ${LAPACKE_INCLUDE} ${LAPACK_BINARY_DIR}/include/lapacke_mangling.h DESTINATION include)
+install(FILES ${LAPACKE_INCLUDE} ${LAPACK_BINARY_DIR}/include/lapacke_mangling.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 
 if(BUILD_TESTING)
   add_subdirectory(example)
diff --git a/LAPACKE/lapacke.pc.in b/LAPACKE/lapacke.pc.in
index e4b8356..68da739 100644
--- a/LAPACKE/lapacke.pc.in
+++ b/LAPACKE/lapacke.pc.in
@@ -1,9 +1,10 @@
-prefix=@prefix@
-libdir=@libdir@
+libdir=@CMAKE_INSTALL_FULL_LIBDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
 
 Name: LAPACKE
 Description: C Standard Interface to LAPACK Linear Algebra PACKage
 Version: @LAPACK_VERSION@
 URL: http://www.netlib.org/lapack/#_standard_c_language_apis_for_lapack
 Libs: -L${libdir} -llapacke
+Cflags: -I${includedir}
 Requires.private: lapack
diff --git a/lapack.pc.in b/lapack.pc.in
index 711012d..316c871 100644
--- a/lapack.pc.in
+++ b/lapack.pc.in
@@ -1,5 +1,5 @@
-prefix=@prefix@
-libdir=@libdir@
+libdir=@CMAKE_INSTALL_FULL_LIBDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
 
 Name: LAPACK
 Description: FORTRAN reference implementation of LAPACK Linear Algebra PACKage
-- 
2.7.4