Refs #187. Use perl to generate cblas_noconst.h instead of sed.

Thank Dan Povey's patch. https://github.com/xianyi/OpenBLAS/issues/187

Makefile.prebuild

@@ -39,6 +39,6 @@ else
 endif
 
 cblas_noconst.h : cblas.h
-	sed -e "s/\bconst\b\s*//g" cblas.h > cblas_noconst.h
+	perl -ane ' s/\bconst\b\s*//g; print; ' < cblas.h > cblas_noconst.h	
 
 dummy:

getarch_2nd.c

@@ -34,7 +34,7 @@ int main(int argc, char **argv) {
 #ifdef USE64BITINT
 	printf("#define USE64BITINT\n");
 #endif
-	printf("#define GEMM_MULTITHREAD_THRESHOLD\t%ld\n", GEMM_MULTITHREAD_THRESHOLD);
+	printf("#define GEMM_MULTITHREAD_THRESHOLD\t%ld\n", (long int)GEMM_MULTITHREAD_THRESHOLD);
   }
 
   return 0;