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

2 files changed, 27 insertions, 10 deletions

diff --git a/ports/openblas/CONTROL b/ports/openblas/CONTROL
index 3c2b0b7eb..ea246834d 100644
--- a/ports/openblas/CONTROL
+++ b/ports/openblas/CONTROL
@@ -1,5 +1,6 @@
 Source: openblas
-Version: 0.3.9-1
+Version: 0.3.9
+Port-Version: 2
 Homepage: https://github.com/xianyi/OpenBLAS
-Build-Depends: pthread (linux)
+Build-Depends: pthread (linux&osx)
 Description: OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.
diff --git a/ports/openblas/portfile.cmake b/ports/openblas/portfile.cmake
index 2decb5883..57b9236ac 100644
--- a/ports/openblas/portfile.cmake
+++ b/ports/openblas/portfile.cmake
@@ -1,5 +1,3 @@
-include(vcpkg_common_functions)
-
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO xianyi/OpenBLAS
@@ -22,13 +20,15 @@ set(SED_EXE_PATH "${GIT_EXE_PATH}/../usr/bin")
 # openblas require perl to generate .def for exports
 vcpkg_find_acquire_program(PERL)
 get_filename_component(PERL_EXE_PATH ${PERL} DIRECTORY)
-set(ENV{PATH} "$ENV{PATH};${PERL_EXE_PATH};${SED_EXE_PATH}")
+set(PATH_BACKUP "$ENV{PATH}")
+vcpkg_add_to_path("${PERL_EXE_PATH}")
+vcpkg_add_to_path("${SED_EXE_PATH}")
 
 set(COMMON_OPTIONS -DBUILD_WITHOUT_LAPACK=ON)
 
 # for UWP version, must build non uwp first for helper
 # binaries.
-if(VCPKG_CMAKE_SYSTEM_NAME  STREQUAL "WindowsStore")
+if(VCPKG_TARGET_IS_UWP)
     message(STATUS "Building Windows helper files")
     set(TEMP_CMAKE_SYSTEM_NAME "${VCPKG_CMAKE_SYSTEM_NAME}")
     set(TEMP_CMAKE_SYSTEM_VERSION "${VCPKG_CMAKE_SYSTEM_VERSION}")
@@ -46,7 +46,7 @@ if(VCPKG_CMAKE_SYSTEM_NAME  STREQUAL "WindowsStore")
 
     # add just built path to environment for gen_config_h.exe,
     # getarch.exe and getarch_2nd.exe
-    set(ENV{PATH} "$ENV{PATH};${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel")
+    vcpkg_add_to_path("${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel")
 
     # restore target build information
     set(VCPKG_CMAKE_SYSTEM_NAME "${TEMP_CMAKE_SYSTEM_NAME}")
@@ -63,7 +63,7 @@ if(VCPKG_CMAKE_SYSTEM_NAME  STREQUAL "WindowsStore")
             -DVS_WINRT_COMPONENT=TRUE
             "-DBLASHELPER_BINARY_DIR=${CURRENT_BUILDTREES_DIR}/x64-windows-rel")
 
-elseif(NOT VCPKG_CMAKE_SYSTEM_NAME)
+elseif(VCPKG_TARGET_IS_WINDOWS)
     vcpkg_configure_cmake(
         PREFER_NINJA
         SOURCE_PATH ${SOURCE_PATH}
@@ -85,6 +85,23 @@ endif()
 
 vcpkg_install_cmake()
 vcpkg_fixup_cmake_targets(CONFIG_PATH share/cmake/OpenBLAS TARGET_PATH share/openblas)
+set(ENV{PATH} "${PATH_BACKUP}")
+
+set(pcfile "${CURRENT_PACKAGES_DIR}/lib/pkgconfig/openblas.pc")
+if(EXISTS "${pcfile}")
+    file(READ "${pcfile}" _contents)
+    set(_contents "prefix=${CURRENT_INSTALLED_DIR}\n${_contents}")
+    file(WRITE "${pcfile}" "${_contents}")
+    #file(CREATE_LINK "${pcfile}" "${CURRENT_PACKAGES_DIR}/lib/pkgconfig/blas.pc" COPY_ON_ERROR)
+endif()
+set(pcfile "${CURRENT_PACKAGES_DIR}/debug/lib/pkgconfig/openblas.pc")
+if(EXISTS "${pcfile}")
+    file(READ "${pcfile}" _contents)
+    set(_contents "prefix=${CURRENT_INSTALLED_DIR}/debug\n${_contents}")
+    file(WRITE "${pcfile}" "${_contents}")
+    #file(CREATE_LINK "${pcfile}" "${CURRENT_PACKAGES_DIR}/debug/lib/pkgconfig/blas.pc" COPY_ON_ERROR)
+endif()
+vcpkg_fixup_pkgconfig()
 #maybe we need also to write a wrapper inside share/blas to search implicitly for openblas, whenever we feel it's ready for its own -config.cmake file
 
 # openblas do not make the config file , so I manually made this
@@ -97,8 +114,7 @@ string(REPLACE "#include \"common.h\"" "#include \"openblas_common.h\"" CBLAS_H
 file(WRITE ${CURRENT_PACKAGES_DIR}/include/cblas.h "${CBLAS_H}")
 
 # openblas is BSD
-file(COPY ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/openblas)
-file(RENAME ${CURRENT_PACKAGES_DIR}/share/openblas/LICENSE ${CURRENT_PACKAGES_DIR}/share/openblas/copyright)
+file(INSTALL ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)
 
 file(COPY ${CMAKE_CURRENT_LIST_DIR}/vcpkg-cmake-wrapper.cmake DESTINATION ${CURRENT_PACKAGES_DIR}/share/blas)
 file(COPY ${CMAKE_CURRENT_LIST_DIR}/FindBLAS.cmake DESTINATION ${CURRENT_PACKAGES_DIR}/share/blas)