X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=moebius2.git;a=blobdiff_plain;f=Makefile;h=221eadbe3f14d45bfa20510cefbba88a86434847;hp=9443d70dc9241974290d08ee973b243854564fba;hb=827bc2089edb91756a94e6ff04b67b1797a5c4a8;hpb=21a2bd20afe0f4673494f4841a5675ca68cbd2d7

diff --git a/Makefile b/Makefile
index 9443d70..221eadb 100644
--- a/Makefile
+++ b/Makefile
@@ -11,9 +11,7 @@ SGTATHAM=sgtatham
 CWARNS=	-Wall -Wwrite-strings -Wpointer-arith -Werror -Wshadow
 CXXWARNS= $(CWARNS) -Wno-shadow -Wno-error
 
-NPROCCFLAGS := -DNPROCESSORS=$(shell ./nprocessors)
-
-OPTIMISE=	-O2
+OPTIMISE=	-O3
 CFLAGS_UNIPROC=	-MMD $(OPTIMISE) -g $(CWARNS) $(DIMCFLAGS)
 CXXFLAGS=	-MMD $(OPTIMISE) -g $(CXXWARNS)
 CFLAGS=		$(CFLAGS_UNIPROC) $(NPROCCFLAGS)
@@ -40,6 +38,13 @@ nprocessors:	nprocessors.o common.o
 common.o nprocessors.o: %.o: %.c
 		$(CC) -c $(CPPFLAGS) $(CFLAGS_UNIPROC) $< -o $@
 
+.nprocessors.make: ./nprocessors
+	set -e; n=`./nprocessors`; \
+	echo "NPROCCFLAGS := -DNPROCESSORS=$$n" $o
+
+include .nprocessors.make
+
+
 prime.data:	primer
 		./$^ $o