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Re: How does the SDK selection affect my compiler settings?
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Re: How does the SDK selection affect my compiler settings?

  • Subject: Re: How does the SDK selection affect my compiler settings?
  • From: Chris Espinosa <email@hidden>
  • Date: Fri, 20 May 2005 15:08:51 -0700

On May 20, 2005, at 2:55 PM, James Bucanek wrote:

So I wonder why the compiler behaviour changes when I link against and SDK?  A quick grep shows that there are a bunch of statements like


    #pragma warning ( disable: 4244 )


scattered all over the system headers.  I'm wondering if one of those is causing this particular warning to be set in the compiler.  Of course, since I can't seem to find any kind of comprehensive list of warning numbers for gcc, I have no idea which one might do that.



These are actually in the 10.3.9 system headers, in the open source project GLUT:

/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Headers/glsmap.h:#pragma warning (disable:4244)       /* Disable bogus conversion warnings. */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Headers/glut.h:#pragma warning (disable:4244) /* Disable bogus conversion warnings. */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Headers/glutstroke.h:#pragma warning (disable:4244)  /* disable bogus conversion warnings */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Headers/port.h:#pragma warning (disable:4244)          /* disable bogus conversion warnings */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Versions/A/Headers/glsmap.h:#pragma warning (disable:4244)    /* Disable bogus conversion warnings. */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Versions/A/Headers/glut.h:#pragma warning (disable:4244)      /* Disable bogus conversion warnings. */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Versions/A/Headers/glutstroke.h:#pragma warning (disable:4244)  /* disable bogus conversion warnings */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Versions/A/Headers/port.h:#pragma warning (disable:4244)          /* disable bogus conversion warnings */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Versions/Current/Headers/glsmap.h:#pragma warning (disable:4244)      /* Disable bogus conversion warnings. */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Versions/Current/Headers/glut.h:#pragma warning (disable:4244)        /* Disable bogus conversion warnings. */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Versions/Current/Headers/glutstroke.h:#pragma warning (disable:4244)  /* disable bogus conversion warnings */
/Developer/SDKs/MacOSX10.3.9.sdk/System/Library/Frameworks/GLUT.framework/Versions/Current/Headers/port.h:#pragma warning (disable:4244)          /* disable bogus conversion warnings */

They are not for gcc. I see these wrapped in an #ifdef:

#if defined(_WIN32)
#include <windows.h>
#pragma warning (disable:4244)          /* disable bogus conversion warnings */
#endif

So do you have any idea why _WIN32 might be getting defined in your build?  There's no place in Apple headers or SDKs where this is defined, and gcc doesn't define this macro.

Chris
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