openblas allow non-config too

Author: galabovaa

HiGHS.sln

@@ -0,0 +1,24 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.2.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Highs", "nuget\Highs.csproj", "{906CCF22-9F98-849C-F4C4-760DF67E239A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{906CCF22-9F98-849C-F4C4-760DF67E239A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{906CCF22-9F98-849C-F4C4-760DF67E239A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{906CCF22-9F98-849C-F4C4-760DF67E239A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{906CCF22-9F98-849C-F4C4-760DF67E239A}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {DA7F53A6-8908-4463-8F24-7984BE74DB73}
+	EndGlobalSection
+EndGlobal

cmake/FindHipoDeps.cmake

@@ -33,7 +33,7 @@ if (NOT USE_CMAKE_FIND_BLAS)
             # (NOT OpenBLAS_FOUND AND NOT BLAS_FOUND))
             message(STATUS "Looking for blas")
 
-            find_package(OpenBLAS CONFIG REQUIRED)
+            find_package(OpenBLAS CONFIG)
 
             if(OpenBLAS_FOUND)
                 if(TARGET OpenBLAS::OpenBLAS)