On 2015-06-22 09:54+0100 Phil Rosenberg wrote: > Hi Alan > It seems you were correct, I deleted the cache, but obviously that > wasn't enough. A full clean build directory solved the problem so you > can tick that off.
Good. I think a pretty good rule of thumb is if you have to remove the cache whenever there is a build-system fix, then you might as well remove the whole build tree as well. I am pretty casual about the extra compile time required when starting with an empty build tree, but the reason for that is I use ccache. Which likely doesn't do you any good with MSVC (although there might be a Windows equivalent), but I do highly, highly recommend ccache for all gcc users here (including the Windows variants of gcc). What it does is keep track of all compilations in a database, and if the compiler, options, source file, and headers are all identical, it delivers the cached result of the previous compilation rather than running gcc to generate that. ccache is lightening quick and so far extremely reliable which is why I recommend it. To give you some idea of how fast ccache is, here are my time results for building the plplot library. software@raven> make clean software@raven> time make -j4 plplot >& plplot.out real 0m0.970s user 0m0.684s sys 0m0.424s The first time you see such results (less than a second to rebuild the plplot library) you hardly believe them, but it is true, ccache is really that fast. Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical & virtual servers, alerts via email & sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
