-#ifndef __MINGW_H
/*
* _mingw.h
*
* $Id$
*
* Written by Mumit Khan <khan@xraylith.wisc.edu>
- * Copyright (C) 1999, 2001-2011, 2014-2016, MinGW.org Project
+ * Copyright (C) 1999, 2001-2011, 2014-2019, MinGW.org Project
*
*
* Permission is hereby granted, free of charge, to any person obtaining a
* DEALINGS IN THE SOFTWARE.
*
*/
+#ifndef __MINGW_H
#define __MINGW_H
/* In previous versions, __MINGW32_VERSION was expressed as a dotted
* character which is either included
* in, or excluded from the group.
*
- * __CRT_GLOB_CASE_SENSITIVE__ enable case sensitive matching for
+ * The following options, which may also be specified within _CRT_glob,
+ * are specified in terms of their glob() flags, as defined in <glob.h>
+ *
+ * GLOB_CASEMATCH enable case sensitive matching for
* globbing patterns; this is default
* behaviour for POSIX, but because of
* the case insensitive nature of the
* appropriate to use case insensitive
* globbing as the MinGW default.
*
+ * GLOB_BRACE enable expansion of GNU style brace
+ * delimited expression groups within
+ * the globbing pattern.
+ *
*/
#define __CRT_GLOB_USE_SINGLE_QUOTE__ 0x0010
#define __CRT_GLOB_BRACKET_GROUPS__ 0x0020
-#define __CRT_GLOB_CASE_SENSITIVE__ 0x0040
/* The MinGW globbing algorithm uses the ASCII DEL control code as a marker
* for globbing characters which were embedded within quoted arguments; (the
#define __CRT_GLOB_ESCAPE_CHAR__ (char)(127)
+/* Load any user-customized features configuration...
+ */
+#ifdef _MINGW_FEATURES_HEADER
+/* ...from a user-specified, or project-specified alternative file...
+ */
+#include _MINGW_FEATURES_HEADER
+#else
+/* ...or fall back to the default configuration file, (which may,
+ * or may not have been customized).
+ */
+#include <features.h>
+#endif
+
+#ifndef __MINGW_FEATURES__
+/* Regardless of how the preceding features configuration header was
+ * identified, we normally expect that will have defined this, but we
+ * supply this fall-back, just in case it is needed.
+ */
+#define __MINGW_FEATURES__ 0ULL
+#endif
+
+/* Define macros to facilitate the user-specified configuration.
+ */
+#define __MINGW_FEATURE_ENABLE__(__FEATURE__) | (__FEATURE__)
+#define __MINGW_FEATURE_IGNORE__(__FEATURE__)
+
+#define __MINGW_FEATURES_BEGIN__ 0x0000000000000000ULL
+#define __MINGW_FEATURES_UNSET__ 0x0000000000000000ULL
+#define __MINGW_FEATURES_END__
+
/* Manifest definitions identifying the flag bits, controlling activation
* of MinGW features, as specified by the user in __MINGW_FEATURES__.
*/
/* Activation of MinGW specific extended features:
*/
-#ifndef __USE_MINGW_ANSI_STDIO
+#ifdef __USE_MINGW_ANSI_STDIO
/* Users should not set this directly; rather, define one (or more)
* of the feature test macros (tabulated below), or specify any of the
* compiler's command line options, (e.g. -posix, -ansi, or -std=c...),
* which cause _POSIX_SOURCE, or __STRICT_ANSI__ to be defined.
- *
- * We must check this BEFORE we specifiy any implicit _POSIX_C_SOURCE,
+ */
+# warning "Direct definition of __USE_MINGW_ANSI_STDIO is deprecated."
+# pragma message "See <_mingw.h> for preferred feature activation methods."
+
+#else /* ! defined __USE_MINGW_ANSI_STDIO */
+/* We must check this BEFORE we specifiy any implicit _POSIX_C_SOURCE,
* otherwise we would always implicitly choose __USE_MINGW_ANSI_STDIO,
* even if none of these selectors are specified explicitly...
*/
-# if defined __STRICT_ANSI__ || defined _ISOC99_SOURCE \
- || defined _POSIX_SOURCE || defined _POSIX_C_SOURCE \
- || defined _XOPEN_SOURCE || defined _XOPEN_SOURCE_EXTENDED \
- || defined _GNU_SOURCE || defined _BSD_SOURCE \
- || defined _SVID_SOURCE
- /*
- * but where any of these source code qualifiers are specified,
- * then assume ANSI I/O standards are preferred over Microsoft's...
- */
-# define __USE_MINGW_ANSI_STDIO 1
+# if defined __STRICT_ANSI__ || defined _SVID_SOURCE \
+ || defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \
+ || defined _POSIX_SOURCE || defined _POSIX_C_SOURCE \
+ || defined _XOPEN_SOURCE || defined _XOPEN_SOURCE_EXTENDED \
+ || defined _GNU_SOURCE || defined _BSD_SOURCE
+ /*
+ * but where any of these source code qualifiers are specified,
+ * then assume ANSI I/O standards are preferred over Microsoft's...
+ */
+# define __USE_MINGW_ANSI_STDIO __MINGW_ANSI_STDIO__
# else
- /* otherwise use whatever __MINGW_FEATURES__ specifies...
- */
-# define __USE_MINGW_ANSI_STDIO (__MINGW_FEATURES__ & __MINGW_ANSI_STDIO__)
+ /* otherwise use whatever __MINGW_FEATURES__ specifies...
+ */
+# define __USE_MINGW_ANSI_STDIO (__MINGW_FEATURES__ & __MINGW_ANSI_STDIO__)
# endif
#endif
+/* Some applications may define _XOPEN_SOURCE, without assigning any
+ * value to it. Such usage may have been permitted in early SUS, but
+ * it became obsolete as of SUSv2. Attempt to detect obsolete usage,
+ * as it makes an effective evaluation of any _XOPEN_SOURCE version
+ * dependency difficult, (without the use of ugly kludges at EVERY
+ * point of reference which attempts a version comparison).
+ */
+#define __paste(prefix,suffix) prefix ## suffix
+#define __valueless(token) ((token - 0) == 0) && (__paste(token,10) == 10)
+
+#if defined _XOPEN_SOURCE && __valueless(_XOPEN_SOURCE)
+/* _XOPEN_SOURCE appears to have been defined without its mandatory
+ * value; diagnose this brain-damaged obsolete usage (verbosely)...
+ */
+#warning "_XOPEN_SOURCE seems to have been improperly defined."
+#warning "Mandatory _XOPEN_SOURCE value assignment appears to be missing."
+#warning "Redefining _XOPEN_SOURCE to mitigate obsolete misuse."
+
+/* ...and redefine, emulating implicit behaviour of -D_XOPEN_SOURCE on
+ * the GCC command line, (which DOES assign an implied value of one).
+ */
+#undef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 1
+#endif
+
#ifndef _POSIX_C_SOURCE
/* Users may define this, either directly or indirectly, to explicitly
* enable a particular level of visibility for the subset of those POSIX
*/
# define _POSIX_C_SOURCE 200809L
+# if ! defined _EMULATE_GLIBC && ! defined _POSIX_SOURCE
+ /* For this default case, unless it has already been specified
+ * otherwise, we enable some GNU glibc extensions, which may be
+ * considered as violations of strict POSIX.1 conformance.
+ */
+# define _EMULATE_GLIBC 1
+# endif
+
# elif defined _POSIX_SOURCE
/* Now formally deprecated by POSIX, some old code may specify this;
* it will enable a minimal level of POSIX support, in addition to the
# endif
#endif
+#if _POSIX_C_SOURCE >= 199506L
+/* Conformance with POSIX.1-1996 has been requested; ensure that any
+ * interfaces which have been marked as "obsolescent", from this POSIX
+ * version onwards, will be reported as "deprecated", at point of use.
+ */
+# define __POSIX_1996_DEPRECATED __MINGW_ATTRIB_DEPRECATED
+#else
+/* POSIX.1-1996 conformance is NOT required; do not object to use of
+ * interfaces which became "obsolescent" in this POSIX version, but
+ * were still fully supported in earlier versions.
+ */
+# define __POSIX_1996_DEPRECATED
+#endif
+
+#if _POSIX_C_SOURCE >= 200112L
+/* Conformance with POSIX.1-2001 has been requested; ensure that any
+ * interfaces which have been marked as "obsolescent", from this POSIX
+ * version onwards, will be reported as "deprecated", at point of use.
+ */
+# define __POSIX_2001_DEPRECATED __MINGW_ATTRIB_DEPRECATED
+#else
+/* POSIX.1-2001 conformance is NOT required; do not object to use of
+ * interfaces which became "obsolescent" in this POSIX version, but
+ * were still fully supported in earlier versions.
+ */
+# define __POSIX_2001_DEPRECATED
+#endif
+
+#if _POSIX_C_SOURCE >= 200809L
+/* Conformance with POSIX.1-2008 has been requested; ensure that any
+ * interfaces which have been marked as "obsolescent", from this POSIX
+ * version onwards, will be reported as "deprecated", at point of use.
+ */
+# define __POSIX_2008_DEPRECATED __MINGW_ATTRIB_DEPRECATED
+#else
+/* POSIX.1-2008 conformance is NOT required; do not object to use of
+ * interfaces which became "obsolescent" in this POSIX version, but
+ * were still fully supported in earlier versions.
+ */
+# define __POSIX_2008_DEPRECATED
+#endif
+
#ifndef _ISOC99_SOURCE
/* libmingwex.a provides free-standing implementations for many of the
* functions which were introduced in C99; MinGW headers do not expose
* prototypes for these, unless this feature test macro is defined, by
- * the user, or implied by other standards...
+ * the user, or implied by other standards. We will use a bit-mapped
+ * representation, comprising the bit-wise sum of:
+ *
+ * 0x08 user declared
+ * 0x04 required by C compiler, supporting ISO-C99
+ * 0x02 required by C++ compiler, supporting ISO-C++11
+ * 0x01 required to support recent POSIX.1 features
+ *
+ * to ensure that we can identify the reason for implicit declaration,
+ * (in the event that we may need to discriminate).
*/
-# if __STDC_VERSION__ >= 199901L || _POSIX_C_SOURCE >= 200112L
-# define _ISOC99_SOURCE 1
+# if __STDC_VERSION__ >= 199901L
+ /* This represents a compiler supporting ISO-C99; enable all potential
+ * use of ISO-C99 features, (to the maximum extent supportable), which
+ * presumably also covers all C++11 and POSIX.1 usage.
+ */
+# define _ISOC99_SOURCE 0x07
+
+# elif __cplusplus >= 201103L
+ /* C++11 also incorporates many (if not all) of the ISO-C99 features,
+ * which we have guarded by _ISOC99_SOURCE; enable such features, to
+ * the required extent, (which is likely also sufficient to support
+ * any POSIX.1 dependencies).
+ */
+# define _ISOC99_SOURCE 0x03
+
+# elif _POSIX_C_SOURCE >= 200112L
+ /* This represents the minimum level of ISO-C99 support, which may be
+ * required by POSIX.1, (and which may be no less than full support).
+ */
+# define _ISOC99_SOURCE 0x01
# endif
+
+#else
+ /* The the user has explicitly declared a source level dependency on
+ * ISO-C99 features; regardless of how it was declared, redefine it to
+ * ensure that any plausible dependency is covered.
+ */
+# undef _ISOC99_SOURCE
+# define _ISOC99_SOURCE 0x0F
+
+#endif /* _ISOC99_SOURCE */
+
+#if _ISOC99_SOURCE && __cplusplus >= 201103L && __GNUC__ < 6
+ /* Due to a configuration defect in GCC versions prior to GCC-6, when
+ * compiling C++11 code, the ISO-C99 functions may not be incorporated
+ * into the appropriate namespace(s); we may be able to mitigate this,
+ * by ensuring that these GCC configuration macros are defined.
+ */
+# define _GLIBCXX_USE_C99 1
+# define _GLIBCXX_HAVE_WCSTOF 1
#endif
#if ! defined _MINGW32_SOURCE_EXTENDED && ! defined __STRICT_ANSI__
-/*
- * Enable mingw32 extensions by default, except when __STRICT_ANSI__
- * conformity mode has been enabled.
- */
+ /* Enable mingw32 extensions by default, except when __STRICT_ANSI__
+ * conformity mode has been enabled.
+ */
# define _MINGW32_SOURCE_EXTENDED 1
#endif
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