[Boost-commit] svn:boost r52171 - trunk/tools/jam/src

Subject: [Boost-commit] svn:boost r52171 - trunk/tools/jam/src
From: ghost_at_[hidden]
Date: 2009-04-04 14:55:37

Author: vladimir_prus
Date: 2009-04-04 14:55:37 EDT (Sat, 04 Apr 2009)
New Revision: 52171
URL: http://svn.boost.org/trac/boost/changeset/52171

Log:
Allow Boost.Build to override the value of -j.

Text files modified: 
   trunk/tools/jam/src/jam.c |    19 +++++++++++++++++++                     
   1 files changed, 19 insertions(+), 0 deletions(-)

Modified: trunk/tools/jam/src/jam.c
==============================================================================
--- trunk/tools/jam/src/jam.c	(original)
+++ trunk/tools/jam/src/jam.c	2009-04-04 14:55:37 EDT (Sat, 04 Apr 2009)
@@ -476,6 +476,25 @@
             ++globs.noexec;
         }
 
+        /* The build system may set the PARALLELISM variable to override -j
+           options.  */
+        {
+            LIST *p = L0;
+            p = var_get ("PARALLELISM");
+            if (p)
+            {
+                int j = atoi (p->string);
+                if (j == -1)
+                {
+                    printf( "Invalid value of PARALLELISM: %s\n", p->string);
+                }
+                else
+                {
+                    globs.jobs = j;
+                }
+            }
+        }
+
         /* Now make target. */
         {
             PROFILE_ENTER( MAIN_MAKE );