Experimental support to use OpenBLAS BLAS on Windows.

git-svn-id: https://svn.r-project.org/R/trunk@87317 00db46b3-68df-0310-9c12-caf00c1e9a41

Author: kalibera

src/extra/blas/Makefile.win

@@ -13,6 +13,11 @@ ifeq "$(USE_ATLAS)" "YES"
 	@$(ECHO) -------- Building $@ --------
 	$(DLL) -s -shared $(DLLFLAGS) -o $@ $^ Rblas.def \
 	   -L../../../$(IMPDIR) -lR  -L"$(ATLAS_PATH)" -lf77blas -latlas
+else ifeq "$(USE_OPENBLAS)" "YES"
+../../../$(BINDIR)/Rblas.dll: blas00.o ../../gnuwin32/dllversion.o
+	@$(ECHO) -------- Building $@ --------
+	$(DLL) -s -shared $(DLLFLAGS) -o $@ $^ Rblas.def \
+	    -L../../../$(IMPDIR) -lR  $(shell $(PKG_CONFIG) --libs openblas)
 else
 ../../../$(BINDIR)/Rblas.dll: blas.o blas2.o cmplxblas.o cmplxblas2.o ../../gnuwin32/dllversion.o
 	@$(ECHO) -------- Building $@ --------

src/gnuwin32/MkRules.dist

@@ -62,6 +62,10 @@
 # USE_ATLAS = NO
 # ATLAS_PATH =
 
+# Set to YES if you want to use OPENBLAS. OPENBLAS libraries are looked up
+# using pkg-config. OPENBLAS and pkg-config are part of Rtools.
+# USE_OPENBLAS = NO
+
 # Support for the ACML and Goto BLASes has been withdrawn: see R-admin.html
 
 # Define to use svnversion to set SVN-REVISION (slow, and requires a clean

src/gnuwin32/MkRules.rules

@@ -7,6 +7,7 @@ LOCAL_SOFT ?= $(shell which `echo $(CC) | sed -e 's/ .*//g'` | sed -e 's!/bin/[^
 EXT_LIBS ?= $(LOCAL_SOFT)
 G_FLAG ?= $(if $(USE_LLVM),-g3,-gdwarf-2)
 USE_ATLAS ?= NO
+USE_OPENBLAS ?= NO
 ATLAS_PATH ?= 
 TOOL_PATH ?=
 BINPREF64 ?=