Refs #42. Output the error message when detecting fortran compiler failed.

Changelog.txt

@@ -1,4 +1,12 @@
 OpenBLAS ChangeLog
+====================================================================
+Version 0.1 alpha2.1
+28-Jun-2011
+
+common:
+	* Stop the build and output the error message when detecting 
+	  fortran compiler failed. (Refs issue #42 on github)
+
 ====================================================================
 Version 0.1 alpha2
 23-Jun-2011

Makefile

@@ -102,6 +102,9 @@ endif
 libs :
 ifeq ($(CORE), UNKOWN)
 	$(error OpenBLAS: Detecting CPU failed. Please set TARGET explicitly, e.g. make TARGET=your_cpu_target. Please read README for the detail.)
+endif
+ifeq ($(NOFORTRAN), 1)
+	$(error OpenBLAS: Detecting fortran compiler failed. Please install fortran compiler, e.g. gfortran, ifort, openf90.)
 endif
 	-ln -fs $(LIBNAME) libopenblas.$(LIBSUFFIX)
 	for d in $(SUBDIRS) ; \

Makefile.rule

@@ -3,7 +3,7 @@
 #
 
 # This library's version
-VERSION = 0.1alpha2
+VERSION = 0.1alpha2.1
 
 # You can specify the target architecture, otherwise it's
 # automatically detected.