+2020-01-17 Keith Marshall <keith@users.osdn.me>
+
+ Support GCC-9.x gratuitous dependency on ftruncate64() function.
+
+ * include/unistd.h (ftruncate64): Declare prototype; implement it...
+ * mingwex/ftruncate.c: ...in this new file; it will delegate to...
+ (_chsize_s): ...this MSVCRT.DLL function, if available.
+
+ * Makefile.in (libmingwex.a): Add dependency on...
+ (ftruncate.$OBJEXT): ...this.
+
+ * msvcrt-xref/msvcrt.def.in (_chsize_s): Require dlsym look-up.
+
+2020-01-17 Keith Marshall <keith@users.osdn.me>
+
+ Preserve order of tests for integrity of header files.
+
+ * tests/Makefile.in: Explicitly sort $wildcard output, within...
+ (list_headers): ...this new function-style macro.
+ (enum_headers): Use it.
+
+ * tests/headers.at: Adjust to recent GNU make $sort order.
+
+2020-01-17 Keith Marshall <keith@users.osdn.me>
+
+ Update handling of <process.h> test-suite limitation.
+
+ * include/process.h (-Wbuiltin-declaration-mismatch)
+ [__IN_MINGWRT_TESTSUITE__ && __GNUC__ >= 7 && __cplusplus]: Drop...
+ [__cplusplus]: ...this diagnostic constraint, in test case when...
+ [__GNUC__ >= 9]: ...this applies; this diagnostic now affects both
+ C and C++ compilers, with respect to each of...
+ (execv, execve, execvp): ...these functions.
+
+2020-01-17 Keith Marshall <keith@users.osdn.me>
+
+ Support GCC-9.x gratuitous use of non-standard errno accessor API.
+
+ * include/stdlib.h (_get_errno, _set_errno): Declare prototypes;
+ implement them in-line, for legacy Windows versions which may lack
+ them, since GCC-9.x gratuitously and ill-advisedly requires them.
+ (__STDLIB_H_SOURCED__): Define, and selectively #include...
+
+ * include/errno.h: ...this, subject to criterion...
+ [__STDLIB_H_SOURCED__]: ...for exposure of only...
+ (errno): ...this public API declaration, and...
+ (EINVAL): ...this symbolic constant.
+
+2019-10-26 Keith Marshall <keith@users.osdn.me>
+
+ Fix MinGW-Issue #39757; avoid multiple vsnprintf() definitions.
+
+ * include/stdio.h [C++] (__mingw_stdio_redirect__): Defer redirection
+ to in-line definitions applicable for C, when the compiler suite is...
+ [__GNUC__]: ...this.
+
+2019-10-16 Keith Marshall <keith@users.osdn.me>
+
+ Address MinGW-Issue #39677; declare _findclose() only once.
+
+ * include/io.h (_findclose): Relocate declaration within conditional
+ block, to prevent second exposure when <io.h> is included in full,
+ following partial inclusion by <wchar.h>
+
+2019-07-06 Keith Marshall <keith@users.osdn.me>
+
+ Prepare and publish MinGW.org WSL-5.2.2 release.
+
+ * All files (wsl-5.2.2-release): Tag assigned.
+
+2019-07-03 Keith Marshall <keith@users.osdn.me>
+
+ Avoid built-in snprintf() prototypes; fix MinGW-Bug #39224
+
+ * include/stdio.h [__USE_MINGW_ANSI_STDIO]
+ (snprintf, vsnprintf): Implement them in-line, delegating to...
+ (__mingw_vsnprintf): ...this external function.
+
+ * mingwex/stdio/snprintf.c mingwex/stdio/vsnprintf.c: Assert
+ copyright; include <stddef.h>, instead of <stdio.h>, to obtain a
+ definition of "size_t"; this is required because the new in-line
+ prototypes, now provided in <stdio.h>, conflict with the intent
+ to provide external implementations.
+
+ * tests/ansiprintf.at (MINGW_AT_CHECK_SNPRINTF): Conditionally
+ circumvent conditions which may produce -Wformat warnings.
+
+2019-07-01 Keith Marshall <keith@users.osdn.me>
+
+ Revert to macro implementation of "alloca()" functions.
+
+ * include/alloca.h (alloca, _alloca): Delete any prior definitions;
+ remove in-line implementations; replace with conventional prototypes,
+ followed by corresponding function style macro definitions.
+
+2019-01-22 Keith Marshall <keith@users.osdn.me>
+
+ Prepare and publish MinGW.org WSL-5.2.1 release.
+
+ * All files (wsl-5.2.1-release): Tag assigned.
+
+2019-01-22 Keith Marshall <keith@users.osdn.me>
+
+ Incorporate user-customized <features.h> configuration.
+
+ * include/_mingw.h: Include <features.h>, or...
+ [_MINGW_FEATURES_HEADER]: ...nominated alternative header.
+ [!defined __MINGW_FEATURES__]: Provide fall-back definition.
+ (__MINGW_FEATURES_BEGIN__, __MINGW_FEATURES_ENABLE__)
+ (__MINGW_FEATURES_IGNORE__, __MINGW_FEATURES_UNSET__)
+ (__MINGW_FEATURES_END__): New macros; define them.
+
+ * tests/Makefile.in (install-mingwrt): Create <features.h> stub; this
+ is an empty file, yielding the default fall-back configuration.
+
+2019-01-21 Keith Marshall <keith@users.osdn.me>
+
+ Handle another GCC compile-time warning.
+
+ * mingwex/memalign.c (is_power_of_two): Use in-line expansion...
+ (memalign_is_power_of_two): ...of this new function; this is required
+ to avoid -Wsequence-point warnings, which may arise when testing the
+ result of an assignment expression passed as the macro argument.
+
+2019-01-11 Keith Marshall <keith@users.osdn.me>
+
+ Fix a mkstemp() file name generator defect.
+
+ * mingwex/cryptnam.c (crypto_random_filename_char): Revert 2018-09-06
+ change; argument type must be unsigned char *, to avoid math errors.
+ (__mingw_crypto_tmpname): Use explicit casts to resolve type conflicts.
+
+2019-01-11 Keith Marshall <keith@users.osdn.me>
+
+ Fix a <stdio.h> typedef omission.
+
+ * include/stdio.h: Adjust comment formatting.
+ (__need___off64_t) [__MSVCRT__]: Require it, but remove...
+ [!(__STRICT_ANSI__||__NO_MINGW_LFS)]: ...this exclusion filter.
+ [!__MSVCRT__] (__need___off32_t): Require this alternative.
+ (sys/types.h): Include unconditionally.
+
+2018-12-23 Keith Marshall <keith@users.osdn.me>
+
+ Prepare and publish MinGW.org WSL-5.2 release.
+
+ * All files (wsl-5.2-release): Tag assigned.
+
2018-12-22 Keith Marshall <keith@users.osdn.me>
Correct an optional DLL installation and packaging defect.
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