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programming:makefile:issues [2024/05/22 12:01] – ↷ Page moved from makefile:issues to programming:makefile:issues niziakprogramming:makefile:issues [2024/09/04 20:43] (current) – niziak
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 ====== issues ====== ====== issues ======
 +
 +===== parallel: race making common prereq =====
 +
 +According to [[https://lists.gnu.org/archive/html/help-make/2011-03/msg00027.html|Re: Race condition with parallel recursive make]]
 +<code>
 +You must have the target built by only one makefile, and the other
 +makefiles should merely depend on it.  Whenever you have more than one
 +makefile that contains rules to build the same target, you have a
 +problem
 +</code>
 +
  
 ===== No known features for CXX compiler ===== ===== No known features for CXX compiler =====
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 <code make>DUMP_FILE_LIST := +"$(MAKE)" -s --no-print-directory ...</code> <code make>DUMP_FILE_LIST := +"$(MAKE)" -s --no-print-directory ...</code>
  
-  The problem is that GNU make, to implement parallel build, requires special options and descriptors to be passed over the sub-make calls, this happens automatically when make is invoked directly or through $(MAKE) but if it’s indirected through variables, then it’s not happening automatically and the developer has to tell GNU make to actually pass the options along.+  The problem is that GNU make, to implement parallel build, requires special options and descriptors to be passed 
 +  over the sub-make calls, this happens automatically when make is invoked directly or through $(MAKE) but if it’s 
 +  indirected through variables, then it’s not happening automatically and the developer has to tell GNU make to 
 +  actually pass the options along. 
 +