Merge pull request Reference-LAPACK#893 from chayleaf/gnu-install-dirs

allow absolute GNU install dirs

Author: weslleyspereira

CBLAS/cmake/cblas-config-install.cmake.in

@@ -1,11 +1,8 @@
 # Compute locations from <prefix>/@{LIBRARY_DIR@/cmake/lapacke-<v>/<self>.cmake
 get_filename_component(_CBLAS_SELF_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
-get_filename_component(_CBLAS_PREFIX "${_CBLAS_SELF_DIR}" PATH)
-get_filename_component(_CBLAS_PREFIX "${_CBLAS_PREFIX}" PATH)
-get_filename_component(_CBLAS_PREFIX "${_CBLAS_PREFIX}" PATH)
 
 # Load the LAPACK package with which we were built.
-set(LAPACK_DIR "${_CBLAS_PREFIX}/@CMAKE_INSTALL_LIBDIR@/cmake/@LAPACKLIB@-@LAPACK_VERSION@")
+set(LAPACK_DIR "@CMAKE_INSTALL_FULL_LIBDIR@/cmake/@LAPACKLIB@-@LAPACK_VERSION@")
 find_package(LAPACK NO_MODULE)
 
 # Load lapacke targets from the install tree.
@@ -14,10 +11,9 @@ if(NOT TARGET @CBLASLIB@)
 endif()
 
 # Report lapacke header search locations.
-set(CBLAS_INCLUDE_DIRS ${_CBLAS_PREFIX}/include)
+set(CBLAS_INCLUDE_DIRS @CMAKE_INSTALL_FULL_INCLUDEDIR@)
 
 # Report lapacke libraries.
 set(CBLAS_LIBRARIES @CBLASLIB@)
 
-unset(_CBLAS_PREFIX)
 unset(_CBLAS_SELF_DIR)

LAPACKE/cmake/lapacke-config-install.cmake.in

@@ -1,11 +1,8 @@
 # Compute locations from <prefix>/@{LIBRARY_DIR@/cmake/lapacke-<v>/<self>.cmake
 get_filename_component(_LAPACKE_SELF_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
-get_filename_component(_LAPACKE_PREFIX "${_LAPACKE_SELF_DIR}" PATH)
-get_filename_component(_LAPACKE_PREFIX "${_LAPACKE_PREFIX}" PATH)
-get_filename_component(_LAPACKE_PREFIX "${_LAPACKE_PREFIX}" PATH)
 
 # Load the LAPACK package with which we were built.
-set(LAPACK_DIR "${_LAPACKE_PREFIX}/@CMAKE_INSTALL_LIBDIR@/cmake/@LAPACKLIB@-@LAPACK_VERSION@")
+set(LAPACK_DIR "@CMAKE_INSTALL_FULL_LIBDIR@/cmake/@LAPACKLIB@-@LAPACK_VERSION@")
 find_package(LAPACK NO_MODULE)
 
 # Load lapacke targets from the install tree.
@@ -17,10 +14,9 @@ endif()
 set(LAPACKE_Fortran_COMPILER_ID ${LAPACK_Fortran_COMPILER_ID})
 
 # Report lapacke header search locations.
-set(LAPACKE_INCLUDE_DIRS ${_LAPACKE_PREFIX}/include)
+set(LAPACKE_INCLUDE_DIRS @CMAKE_INSTALL_FULL_INCLUDEDIR@)
 
 # Report lapacke libraries.
 set(LAPACKE_LIBRARIES @LAPACKELIB@ ${LAPACK_LIBRARIES})
 
-unset(_LAPACKE_PREFIX)
 unset(_LAPACKE_SELF_DIR)