[lapack] add metaport lapack to switch lapack impl with an overlay (#12464)

* [lapack-select] add port lapack-select to select the lapack implementation

* move (!osx) check into lapack select

* correct the platform selection logic so that clapack is not forced.
added external as a feature.
made a dummy project to find the external provided LAPACK

* fix the oscx regression. Actually need to specify external dependency on OSX

* rename port to lapack and use build-depends

13 files changed, 38 insertions, 16 deletions

diff --git a/ports/armadillo/CONTROL b/ports/armadillo/CONTROL
index 463b8e670..c266b9112 100644
--- a/ports/armadillo/CONTROL
+++ b/ports/armadillo/CONTROL
@@ -1,4 +1,5 @@
 Source: armadillo
-Version: 2019-04-16-8
+Version: 2019-04-16
+Port-Version: 9
 Description: Armadillo is a high quality linear algebra library (matrix maths) for the C++ language, aiming towards a good balance between speed and ease of use
-Build-Depends: openblas (!osx), clapack (!osx)
+Build-Depends: openblas (!osx), lapack
diff --git a/ports/blaze/CONTROL b/ports/blaze/CONTROL
index d9198b970..5f613205c 100644
--- a/ports/blaze/CONTROL
+++ b/ports/blaze/CONTROL
@@ -1,5 +1,6 @@
 Source: blaze
 Version: 3.7
-Build-Depends: clapack (!osx), boost-exception
+Port-Version: 1
+Build-Depends: lapack, boost-exception
 Homepage: https://bitbucket.org/blaze-lib/blaze
 Description: Blaze is an open-source, high-performance C++ math library for dense and sparse arithmetic.
diff --git a/ports/ceres/CONTROL b/ports/ceres/CONTROL
index a0a7a72e0..ecd8f1de6 100644
--- a/ports/ceres/CONTROL
+++ b/ports/ceres/CONTROL
@@ -1,11 +1,12 @@
 Source: ceres
-Version: 1.14.0-7
+Version: 1.14.0
+Port-Version: 8
 Build-Depends: glog, eigen3
 Homepage: https://github.com/ceres-solver/ceres-solver
 Description: non-linear optimization package
 
 Feature: lapack
-Build-Depends: clapack (!osx)
+Build-Depends: lapack
 Description: Use Lapack in Ceres
 
 Feature: suitesparse
diff --git a/ports/clapack/CONTROL b/ports/clapack/CONTROL
index ce3610044..76e53e29f 100644
--- a/ports/clapack/CONTROL
+++ b/ports/clapack/CONTROL
@@ -1,5 +1,6 @@
 Source: clapack
-Version: 3.2.1-13
+Version: 3.2.1
+Port-Version: 13
 Homepage: https://www.netlib.org/clapack
 Description: CLAPACK (f2c'ed version of LAPACK)
 Build-Depends: openblas (!osx)
diff --git a/ports/dlib/CONTROL b/ports/dlib/CONTROL
index 9828f9726..61df74294 100644
--- a/ports/dlib/CONTROL
+++ b/ports/dlib/CONTROL
@@ -1,6 +1,7 @@
 Source: dlib
-Version: 19.19-1
-Build-Depends: libjpeg-turbo, libpng, openblas (!osx), clapack (!osx)
+Version: 19.19
+Port-Version: 2
+Build-Depends: libjpeg-turbo, libpng, openblas (!osx), lapack
 Homepage: https://github.com/davisking/dlib
 Description: Modern C++ toolkit containing machine learning algorithms and tools for creating complex software in C++
 Default-Features: fftw3, sqlite3
diff --git a/ports/ensmallen/CONTROL b/ports/ensmallen/CONTROL
index 2a93222c6..bf13812e4 100644
--- a/ports/ensmallen/CONTROL
+++ b/ports/ensmallen/CONTROL
@@ -1,6 +1,7 @@
 Source: ensmallen
 Version: 2.11.2
+Port-Version: 1
 Homepage: https://github.com/mlpack/ensmallen
 Description: A header-only C++ library for mathematical optimization.
-Build-Depends: openblas (!osx), clapack (!osx), armadillo
+Build-Depends: openblas (!osx), lapack, armadillo
 
diff --git a/ports/g2o/CONTROL b/ports/g2o/CONTROL
index 80b321d5b..5234914a2 100644
--- a/ports/g2o/CONTROL
+++ b/ports/g2o/CONTROL
@@ -1,5 +1,6 @@
 Source: g2o
 Version: 2020-02-07
-Build-Depends: suitesparse, eigen3, clapack (!osx), ceres
+Port-Version: 1
+Build-Depends: suitesparse, eigen3, lapack, ceres
 Description: g2o: A General Framework for Graph Optimization
 Homepage: https://openslam.org/g2o.html
diff --git a/ports/geogram/CONTROL b/ports/geogram/CONTROL
index 4eb40eee0..8125ce280 100644
--- a/ports/geogram/CONTROL
+++ b/ports/geogram/CONTROL
@@ -1,8 +1,9 @@
 Source: geogram
-Version: 1.6.9-7
+Version: 1.6.9
+Port-Version: 8
 Homepage: https://gforge.inria.fr/projects/geogram/
 Description: Geogram is a programming library of geometric algorithms.
-Build-Depends: openblas (!osx), clapack (!osx)
+Build-Depends: openblas (!osx), lapack
 
 Feature: graphics
 Description: Build viewers and geogram_gfx library.
diff --git a/ports/lapack/CMakeLists.txt b/ports/lapack/CMakeLists.txt
new file mode 100644
index 000000000..07b2818b1
--- /dev/null
+++ b/ports/lapack/CMakeLists.txt
@@ -0,0 +1,5 @@
+cmake_minimum_required(VERSION 3.17)

+

+project(Find_LAPACK_external)

+find_package(LAPACK REQUIRED)

+#TODO make sure that the found LAPACK is outside VCPKG
\ No newline at end of file
diff --git a/ports/lapack/CONTROL b/ports/lapack/CONTROL
new file mode 100644
index 000000000..0d7883a0e
--- /dev/null
+++ b/ports/lapack/CONTROL
@@ -0,0 +1,4 @@
+Source: lapack

+Version: 0

+Description: Metapackage for packages which provide LAPACK

+Build-Depends: clapack (!osx)
\ No newline at end of file
diff --git a/ports/lapack/portfile.cmake b/ports/lapack/portfile.cmake
new file mode 100644
index 000000000..cb7d75de9
--- /dev/null
+++ b/ports/lapack/portfile.cmake
@@ -0,0 +1,3 @@
+SET(VCPKG_POLICY_EMPTY_PACKAGE enabled)

+# Make sure LAPACK can be found

+vcpkg_configure_cmake(SOURCE_PATH ${CURRENT_PORT_DIR})

diff --git a/ports/mlpack/CONTROL b/ports/mlpack/CONTROL
index dfccb9025..a56987c3b 100644
--- a/ports/mlpack/CONTROL
+++ b/ports/mlpack/CONTROL
@@ -1,8 +1,9 @@
 Source: mlpack
-Version: 3.2.2-3
+Version: 3.2.2
+Port-Version: 4
 Homepage: https://github.com/mlpack/mlpack
 Description: mlpack is a fast, flexible machine learning library, written in C++, that aims to provide fast, extensible implementations of cutting-edge machine learning algorithms.
-Build-Depends: openblas (!osx), clapack (!osx), boost, armadillo, ensmallen, stb
+Build-Depends: openblas (!osx), lapack, boost, armadillo, ensmallen, stb
 
 Feature: tools
 Description: Build command-line executables.
diff --git a/ports/suitesparse/CONTROL b/ports/suitesparse/CONTROL
index 5481ea401..722dac004 100644
--- a/ports/suitesparse/CONTROL
+++ b/ports/suitesparse/CONTROL
@@ -1,6 +1,7 @@
 Source: suitesparse
-Version: 5.4.0-6
-Build-Depends: clapack (!osx)
+Version: 5.4.0
+Port-Version: 7
+Build-Depends: lapack
 Homepage: http://faculty.cse.tamu.edu/davis/SuiteSparse
 Description: algebra library