From: Jerome Robert <jeromerobert@gmx.com>
Date: Thu, 31 Mar 2016 21:03:52 +0000 (+0200)
Subject: Allow to force to do not use -j as make argument
X-Git-Tag: v0.2.18^2~9^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7aac0aff8ec22598734f5effa2fcc107c95c0655;p=platform%2Fupstream%2Fopenblas.git

Allow to force to do not use -j as make argument

Close #828 (hopefully)
---

diff --git a/Makefile.rule b/Makefile.rule
index 847ee1c..6d0d8f4 100644
--- a/Makefile.rule
+++ b/Makefile.rule
@@ -112,7 +112,10 @@ NO_AFFINITY = 1
 # NO_PARALLEL_MAKE = 1
 
 # Force number of make jobs. The default is the number of logical CPU of the host.
-# This is particularly useful when using distcc
+# This is particularly useful when using distcc.
+# A negative value will disable adding a -j flag to make, allowing to use a parent
+# make -j value. This is usefull to call OpenBLAS make from an other project
+# makefile
 # MAKE_NB_JOBS = 2
 
 # If you would like to know minute performance report of GotoBLAS.
diff --git a/getarch.c b/getarch.c
index f9c49e6..1e0b086 100644
--- a/getarch.c
+++ b/getarch.c
@@ -1013,7 +1013,12 @@ int main(int argc, char *argv[]){
 #endif
 
 #ifdef MAKE_NB_JOBS
+  #if MAKE_NB_JOBS > 0
     printf("MAKE += -j %d\n", MAKE_NB_JOBS);
+  #else
+    // Let make use parent -j argument or -j1 if there
+    // is no make parent
+  #endif
 #elif NO_PARALLEL_MAKE==1
     printf("MAKE += -j 1\n");
 #else