X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=Makefile;h=927f45d1a8e60855abc87ebb43f1652cc1f26387;hb=135adb1269cc41c10ebaf03e72d7258fd9e88a7d;hp=9443d70dc9241974290d08ee973b243854564fba;hpb=21a2bd20afe0f4673494f4841a5675ca68cbd2d7;p=moebius2.git

diff --git a/Makefile b/Makefile
index 9443d70..927f45d 100644
--- a/Makefile
+++ b/Makefile
@@ -11,8 +11,6 @@ SGTATHAM=sgtatham
 CWARNS=	-Wall -Wwrite-strings -Wpointer-arith -Werror -Wshadow
 CXXWARNS= $(CWARNS) -Wno-shadow -Wno-error
 
-NPROCCFLAGS := -DNPROCESSORS=$(shell ./nprocessors)
-
 OPTIMISE=	-O2
 CFLAGS_UNIPROC=	-MMD $(OPTIMISE) -g $(CWARNS) $(DIMCFLAGS)
 CXXFLAGS=	-MMD $(OPTIMISE) -g $(CXXWARNS)
@@ -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