[lapack-reference|fortran] Add new port (microsoft#12805)

* [vcpkg/script] add vcpkg_find_fortran

* [openblas] add pkg-config fixes

* [lapack] add lapack-reference and reduce dependency on clapack

* fix build issues

* dont touch any main files

* move toolchain var into parent scope

* fix a few more issues

* create link in the noblas case

* removed unnecessary check handled by vcpkg_find_fortran.

* move dumpbin check

* fix last issue

* depend on openblas

* set cmake_binary_dir so that compiler id run gets put into buildtree.

* more paths

* add missing PARENT_SCOPE

* ws change

* [mlpack] remove dep on clapack

* comment out patches

* remove openblas again

* Install lapack wrapper since it is missing linkage against -lm and -lgfortran

* PREPEND mingw path to make sure cmake picks it up correctly

* depend on openblas also on osx

* add clapack on windows to skip due to conflicting library installs

* add clapack to skip on linux

* add -fPIC as a fortran compiler flag

* do not add the flag on windows

* add gcc explicitly to the cmake args.

* ws change

* applyrequested changes from CR

* fix the failing patch

ports/clapack/CONTROL

@@ -1,6 +1,6 @@
 Source: clapack
 Version: 3.2.1
-Port-Version: 13
+Port-Version: 14
 Homepage: https://www.netlib.org/clapack
 Description: CLAPACK (f2c'ed version of LAPACK)
 Build-Depends: openblas (!osx)

ports/clapack/portfile.cmake

@@ -11,7 +11,7 @@ vcpkg_extract_source_archive_ex(
   ARCHIVE ${ARCHIVE}
   PATCHES
       remove_internal_blas.patch
-	  fix-ConfigFile.patch
+      fix-ConfigFile.patch
       fix-install.patch
       support-uwp.patch
 )
@@ -37,10 +37,6 @@ vcpkg_copy_pdbs()
 #TODO: fix the official exported targets, since they are broken (luckily it seems that no-one uses them for now)
 vcpkg_fixup_cmake_targets(CONFIG_PATH share/clapack)
 
-#we install a cmake wrapper since the official FindLAPACK module in cmake does find clapack easily, unfortunately...
-file(INSTALL ${CMAKE_CURRENT_LIST_DIR}/vcpkg-cmake-wrapper.cmake DESTINATION ${CURRENT_PACKAGES_DIR}/share/lapack)
-file(INSTALL ${CMAKE_CURRENT_LIST_DIR}/FindLAPACK.cmake DESTINATION ${CURRENT_PACKAGES_DIR}/share/lapack)
-
 file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
 
 # Handle copyright

ports/lapack-reference/CONTROL

@@ -0,0 +1,16 @@
+Source: lapack-reference
+Version: 3.8.0
+Description: LAPACK — Linear Algebra PACKage http://www.netlib.org/lapack/
+Default-Features: blas-select
+Build-Depends: vcpkg-gfortran (windows)
+
+Feature: cblas
+Description: Builds CBLAS
+
+Feature: noblas
+Build-Depends: openblas
+Description: Use external optimized BLAS
+
+Feature: blas-select
+Build-Depends: lapack-reference[core, noblas](!windows|(windows&!static))
+Description: Use external optimized BLAS