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POVariable "undeclared" in "#pragma" command?
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3293610
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2010-07-20T19:28:59.723
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2016-02-26T09:17:09.880
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2016-02-26T09:17:09.880
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Body
I'm compiling a branch of the <a href="http://blender.org" rel="nofollow noreferrer">Blender</a> 3D modeling program <a href="http://wiki.blender.org/index.php/Dev:2.5/Doc/Building_Blender/Linux/Fedora_12/Scons" rel="nofollow noreferrer">from source</a> (using <a href="http://www.scons.org/" rel="nofollow noreferrer">SCONS</a>), on a Fedora 8 box, and am running into an error that I didn't encounter compiling the same source on a CentOS 5 box, and I'm thinking it has to do with the variable definition. The error is: <pre><code>source/blender/blenkernel/intern/implicit.c: In function ‘mul_bfmatrix_lfvector’: source/blender/blenkernel/intern/implicit.c:592: error: ‘CLOTH_OPENMP_LIMIT’ undeclared (first use in this function) source/blender/blenkernel/intern/implicit.c:592: error: (Each undeclared identifier is reported only once source/blender/blenkernel/intern/implicit.c:592: error: for each function it appears in.) source/blender/blenkernel/intern/implicit.c: In function ‘cloth_calc_force’: source/blender/blenkernel/intern/implicit.c:1700: error: ‘CLOTH_OPENMP_LIMIT’ undeclared (first use in this function) </code></pre> The file <code>implicit.c</code> does define that variable; here's the first few lines of the file: <pre><code>#include "MEM_guardedalloc.h" #include "BKE_cloth.h" #include "DNA_object_force.h" #include "BKE_effect.h" #include "BKE_global.h" #include "BKE_utildefines.h" #include "BLI_threads.h" #define CLOTH_OPENMP_LIMIT 25 #ifdef _WIN32 #include <windows.h> static LARGE_INTEGER _itstart, _itend; static LARGE_INTEGER ifreq; </code></pre> the two lines that are throwing an error are: <pre><code>#pragma omp parallel sections private(i) if(vcount > CLOTH_OPENMP_LIMIT) </code></pre> and <pre><code>#pragma omp parallel for private(i) if(numverts > CLOTH_OPENMP_LIMIT) </code></pre> I'm guessing the error is due to the compiler and how it handles when in the compilation that variable gets defined, and since Fedora 8 is a bit outdated, it might have an older version of some compiler that's messing it up. Anyone have an idea how I can get around this variable showing up as "undeclared"?
Tags
<c><gcc><openmp><c-preprocessor>
Title
Variable "undeclared" in "#pragma" command?
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1. PO
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1. USMidnightLightning
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