commit d71591dfd534b97550c59bf24f03b602004d4597
author Brad King <brad.king@kitware.com> Thu Dec 12 12:13:10 2019 -0500
committer Brad King <brad.king@kitware.com> Thu Dec 12 12:13:10 2019 -0500
tree c7fe48b060b560ac2b745b1b7aaa7af1011cf1d8
parent b3a536e726a601b2f17aaad14fee6cb0e215450a
parent d1e111d166891dea7653f49acb13b2262242758e

Merge branch 'FindBLAS-OpenBLAS-thread' into release-3.15

Merge-request: !4134

Modules/FindBLAS.cmake

diff --git a/Modules/FindBLAS.cmake b/Modules/FindBLAS.cmake
index 77f9d0e..d3acafc 100644
--- a/Modules/FindBLAS.cmake
+++ b/Modules/FindBLAS.cmake
@@ -481,8 +481,12 @@
       ""
       )
   endif()
-  if(NOT BLAS_LIBRARIES)
-    find_package(Threads)
+  if(NOT BLAS_LIBRARIES AND (CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED))
+    if(BLAS_FIND_QUIETLY OR NOT BLAS_FIND_REQUIRED)
+      find_package(Threads)
+    else()
+      find_package(Threads REQUIRED)
+    endif()
     # OpenBLAS (http://www.openblas.net)
     check_fortran_libraries(
       BLAS_LIBRARIES