From 82b81c0bbee5d1344dcd2fb0f50cba6a7c0ded9f Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Thu, 22 Feb 2024 22:11:50 +0100
Subject: [PATCH 1/6] Dont fail if there is no Fortran compiler

---
 cmake/f_check.cmake | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmake/f_check.cmake b/cmake/f_check.cmake
index df3a4858d..4c4f5ac04 100644
--- a/cmake/f_check.cmake
+++ b/cmake/f_check.cmake
@@ -64,6 +64,7 @@ else ()
     "#define NEEDBUNDERSCORE 1\n")
 endif()
 
+if (CMAKE_Fortran_COMPILER)
 get_filename_component(F_COMPILER ${CMAKE_Fortran_COMPILER} NAME_WE)
 string(TOUPPER ${F_COMPILER} F_COMPILER)
-
+endif()

From 8fc2c2db043eda5e415c1673779c8bdcd91870fd Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Thu, 22 Feb 2024 22:14:13 +0100
Subject: [PATCH 2/6] Fix missing support for INTERFACE64 on ARM64 and MIPS64

---
 cmake/fc.cmake | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/cmake/fc.cmake b/cmake/fc.cmake
index 5c30be843..bc85a2921 100644
--- a/cmake/fc.cmake
+++ b/cmake/fc.cmake
@@ -6,9 +6,6 @@
 if (${F_COMPILER} STREQUAL "FLANG" AND NOT CMAKE_Fortran_COMPILER_ID STREQUAL "LLVMFlang")
   # This is for classic Flang. LLVM Flang is handled with gfortran below.
   set(CCOMMON_OPT "${CCOMMON_OPT} -DF_INTERFACE_FLANG")
-  if (BINARY64 AND INTERFACE64)
-    set(FCOMMON_OPT "${FCOMMON_OPT} -i8")
-  endif ()
   if (USE_OPENMP)
     set(FCOMMON_OPT "${FCOMMON_OPT} -fopenmp")
   endif ()
@@ -55,6 +52,9 @@ if (${F_COMPILER} STREQUAL "GFORTRAN" OR ${F_COMPILER} STREQUAL "F95" OR CMAKE_F
     if (MIPS64)
       if (BINARY64)
         set(FCOMMON_OPT "${FCOMMON_OPT} -mabi=64")
+        if (INTERFACE64)
+          set(FCOMMON_OPT "${FCOMMON_OPT} -fdefault-integer-8")
+	endif ()
       else ()
         set(FCOMMON_OPT "${FCOMMON_OPT} -mabi=n32")
       endif ()
@@ -83,6 +83,9 @@ if (${F_COMPILER} STREQUAL "GFORTRAN" OR ${F_COMPILER} STREQUAL "F95" OR CMAKE_F
         endif ()
       endif ()
     endif ()
+    if (ARM64 AND INTERFACE64)
+          set(FCOMMON_OPT "${FCOMMON_OPT} -fdefault-integer-8")
+    endif ()
   else ()
     if (BINARY64)
       set(FCOMMON_OPT "${FCOMMON_OPT} -m64")

From 3516fff378cf5d9153d18c86d9a117b0976e777d Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Thu, 22 Feb 2024 22:15:28 +0100
Subject: [PATCH 3/6] Avoid linking both libgomp and libomp in mixed
 clang/gfortran builds

---
 ctest/CMakeLists.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/ctest/CMakeLists.txt b/ctest/CMakeLists.txt
index 91338b73b..6e0a7f309 100644
--- a/ctest/CMakeLists.txt
+++ b/ctest/CMakeLists.txt
@@ -40,6 +40,10 @@ else()
     c_${float_char}blas1.c)
 endif()
   target_link_libraries(x${float_char}cblat1 ${OpenBLAS_LIBNAME})
+  if (USE_OPENMP AND (${CMAKE_Fortran_COMPILER_ID} STREQUAL GNU) AND (${CMAKE_C_COMPILER_ID} STREQUAL Clang))
+        string(REGEX REPLACE "-fopenmp" "" CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS}")
+        target_link_libraries(x${float_char}cblat1 omp pthread)
+  endif()
   if(${CMAKE_SYSTEM_NAME} MATCHES "Linux" OR ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD" OR ${CMAKE_SYSTEM_NAME} MATCHES "QNX")
       target_link_libraries(x${float_char}cblat1 m)
   endif()
@@ -65,6 +69,10 @@ else()
     constant.c)
 endif()
   target_link_libraries(x${float_char}cblat2 ${OpenBLAS_LIBNAME})
+  if (USE_OPENMP AND (${CMAKE_Fortran_COMPILER_ID} STREQUAL GNU) AND (${CMAKE_C_COMPILER_ID} STREQUAL Clang))
+        string(REGEX REPLACE "-fopenmp" "" CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS}")
+        target_link_libraries(x${float_char}cblat2 omp pthread)
+  endif()
   if(${CMAKE_SYSTEM_NAME} MATCHES "Linux" OR ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD" OR ${CMAKE_SYSTEM_NAME} MATCHES "QNX")
     target_link_libraries(x${float_char}cblat2 m)
   endif()
@@ -90,6 +98,10 @@ else()
     constant.c)
 endif()
   target_link_libraries(x${float_char}cblat3 ${OpenBLAS_LIBNAME})
+  if (USE_OPENMP AND (${CMAKE_Fortran_COMPILER_ID} STREQUAL GNU) AND (${CMAKE_C_COMPILER_ID} STREQUAL Clang))
+        string(REGEX REPLACE "-fopenmp" "" CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS}")
+        target_link_libraries(x${float_char}cblat3 omp pthread)
+  endif()
   if(${CMAKE_SYSTEM_NAME} MATCHES "Linux" OR ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD" OR ${CMAKE_SYSTEM_NAME} MATCHES "QNX")
     target_link_libraries(x${float_char}cblat3 m)
   endif()

From 4adfe4d53185233bfbeeb362734a2d80814d4457 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Thu, 22 Feb 2024 22:16:01 +0100
Subject: [PATCH 4/6] Avoid linking both libgomp and libomp in mixed
 clang/gfortran builds

---
 test/CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index d68b12d87..ace20dffc 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -21,10 +21,14 @@ endif()
 if (BUILD_COMPLEX16)
 	list (APPEND OpenBLAS_Tests zblat1 zblat2 zblat3)
 endif()
-
+message (STATUS CCOMP ${CMAKE_C_COMPILER_ID} FCOMP ${CMAKE_Fortran_COMPILER_ID})
 foreach(test_bin ${OpenBLAS_Tests})
 	add_executable(${test_bin} ${test_bin}.f)
 target_link_libraries(${test_bin} ${OpenBLAS_LIBNAME})
+if (USE_OPENMP AND (${CMAKE_Fortran_COMPILER_ID} STREQUAL GNU) AND (${CMAKE_C_COMPILER_ID} STREQUAL Clang))
+	string(REGEX REPLACE "-fopenmp" "" CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS}")
+target_link_libraries(${test_bin} omp pthread)
+endif()
 endforeach()
 
 # $1 exec, $2 input, $3 output_result

From ca121eb5eda1c635f1353d261de5783e079c21c1 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Thu, 22 Feb 2024 22:17:05 +0100
Subject: [PATCH 5/6] Avoid linking both libgomp and libomp in mixed
 clang/gfortran builds

---
 lapack-netlib/TESTING/EIG/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lapack-netlib/TESTING/EIG/CMakeLists.txt b/lapack-netlib/TESTING/EIG/CMakeLists.txt
index e7236677a..b69417853 100644
--- a/lapack-netlib/TESTING/EIG/CMakeLists.txt
+++ b/lapack-netlib/TESTING/EIG/CMakeLists.txt
@@ -107,6 +107,10 @@ set(ZDMDEIGTST zchkdmd.f90)
 macro(add_eig_executable name)
   add_executable(${name} ${ARGN})
   target_link_libraries(${name} openblas${SUFFIX64_UNDERSCORE})
+if (USE_OPENMP AND (${CMAKE_Fortran_COMPILER_ID} STREQUAL GNU) AND (${CMAKE_C_COMPILER_ID} STREQUAL Clang))
+	string(REGEX REPLACE "-fopenmp" "" CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS}")
+target_link_libraries(${name} omp pthread)
+endif()
 #${TMGLIB} ../${LAPACK_LIBRARIES} ${BLAS_LIBRARIES})
 endmacro()
 

From be20588a3c7c0725cd38846ce3408604fbfb2c95 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Thu, 22 Feb 2024 22:17:48 +0100
Subject: [PATCH 6/6] Avoid linking both libgomp and libomp in mixed
 clang/gfortran builds

---
 lapack-netlib/TESTING/LIN/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lapack-netlib/TESTING/LIN/CMakeLists.txt b/lapack-netlib/TESTING/LIN/CMakeLists.txt
index 143fd0597..9ae0cea79 100644
--- a/lapack-netlib/TESTING/LIN/CMakeLists.txt
+++ b/lapack-netlib/TESTING/LIN/CMakeLists.txt
@@ -240,6 +240,10 @@ set(ZLINTSTRFP zchkrfp.f zdrvrfp.f zdrvrf1.f zdrvrf2.f zdrvrf3.f zdrvrf4.f zerrr
 macro(add_lin_executable name)
   add_executable(${name} ${ARGN})
   target_link_libraries(${name} openblas${SUFFIX64_UNDERSCORE})
+  if (USE_OPENMP AND (${CMAKE_Fortran_COMPILER_ID} STREQUAL GNU) AND (${CMAKE_C_COMPILER_ID} STREQUAL Clang))
+	string(REGEX REPLACE "-fopenmp" "" CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS}")
+        target_link_libraries(${name} omp pthread)
+  endif()
 #${TMGLIB} ${LAPACK_LIBRARIES} ${BLAS_LIBRARIES})
 endmacro()