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fixed compilation warning about variable being clobbered by fork

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8947 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2000-12-18 21:00:05 +00:00
parent 442275372d
commit accb325754
1 changed files with 10 additions and 6 deletions
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16
src/unix/utilsunx.cpp
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@@ -404,10 +404,13 @@ long wxExecute(wxChar **argv,
wxProcess *process) wxProcess *process)
{ {
// for the sync execution, we return -1 to indicate failure, but for async // for the sync execution, we return -1 to indicate failure, but for async
// cse we return 0 which is never a valid PID // case we return 0 which is never a valid PID
long errorRetCode = sync ? -1 : 0; //
// we define this as a macro, not a variable, to avoid compiler warnings
// about "ERROR_RETURN_CODE value may be clobbered by fork()"
#define ERROR_RETURN_CODE ((sync) ? -1 : 0)
wxCHECK_MSG( *argv, errorRetCode, wxT("can't exec empty command") ); wxCHECK_MSG( *argv, ERROR_RETURN_CODE, wxT("can't exec empty command") );
#if wxUSE_UNICODE #if wxUSE_UNICODE
int mb_argc = 0; int mb_argc = 0;
@@ -442,7 +445,7 @@ long wxExecute(wxChar **argv,
ARGS_CLEANUP; ARGS_CLEANUP;
return errorRetCode; return ERROR_RETURN_CODE;
} }
#endif // wxUSE_GUI #endif // wxUSE_GUI
@@ -470,7 +473,7 @@ long wxExecute(wxChar **argv,
ARGS_CLEANUP; ARGS_CLEANUP;
return errorRetCode; return ERROR_RETURN_CODE;
} }
} }
@@ -498,7 +501,7 @@ long wxExecute(wxChar **argv,
ARGS_CLEANUP; ARGS_CLEANUP;
return errorRetCode; return ERROR_RETURN_CODE;
} }
else if ( pid == 0 ) // we're in child else if ( pid == 0 ) // we're in child
{ {
@@ -631,6 +634,7 @@ long wxExecute(wxChar **argv,
#endif #endif
} }
#undef ERROR_RETURN_CODE
#undef ARGS_CLEANUP #undef ARGS_CLEANUP
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------