60 lines
1.8 KiB
Diff
60 lines
1.8 KiB
Diff
Florian Weimer's c99 patch from https://sourceforge.net/p/mcpp/patches/7/
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Do not define and undefine _*_SOURCE macros. These have special
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semantics to glibc. <limits.h> may include <features.h>, and which
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point the feature configuration gets frozen. Without this change,
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when system.c includes <unistd.h>, the feature macros are hard-coded
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as baseline POSIX, which does not include readlink. This will lead to
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compilation errors with future compilers.
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diff --git a/src/configed.H b/src/configed.H
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index b4d1ebf3a6bfa280..bde16fc8db38a2c4 100644
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--- a/src/configed.H
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+++ b/src/configed.H
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@@ -295,20 +295,7 @@
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* ULONGMAX should be defined to the ULONG_MAX in <limits.h>.
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*/
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-/* _POSIX_* only to get PATH_MAX */
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-#define _POSIX_ 1
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-#define _POSIX_SOURCE 1
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-#ifndef _POSIX_C_SOURCE
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-#define _POSIX_C_SOURCE 1
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-#define _POSIX_C_SOURCE_defined 1
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-#endif
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#include "limits.h"
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-#undef _POSIX_
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-#undef _POSIX_SOURCE
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-#ifdef _POSIX_C_SOURCE_defined
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-#undef _POSIX_C_SOURCE
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-#undef _POSIX_C_SOURCE_defined
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-#endif
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#define CHARBIT CHAR_BIT
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#define UCHARMAX UCHAR_MAX
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#define USHRTMAX USHRT_MAX
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diff --git a/src/noconfig.H b/src/noconfig.H
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index 6b634fe0b32ff67c..7c923c900c8865dd 100644
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--- a/src/noconfig.H
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+++ b/src/noconfig.H
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@@ -570,20 +570,7 @@
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#include "stdio.h"
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/* PATHMAX is the maximum length of path-list on the host system. */
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-/* _POSIX_* only to get PATH_MAX */
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-#define _POSIX_ 1
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-#define _POSIX_SOURCE 1
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-#ifndef _POSIX_C_SOURCE
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-#define _POSIX_C_SOURCE 1
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-#define _POSIX_C_SOURCE_defined 1
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-#endif
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#include "limits.h"
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-#undef _POSIX_
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-#undef _POSIX_SOURCE
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-#ifdef _POSIX_C_SOURCE_defined
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-#undef _POSIX_C_SOURCE
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-#undef _POSIX_C_SOURCE_defined
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-#endif
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#ifdef PATH_MAX
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#define PATHMAX PATH_MAX /* Posix macro */
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#else
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