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-rw-r--r--lib/unistd.in.h17
1 files changed, 12 insertions, 5 deletions
diff --git a/lib/unistd.in.h b/lib/unistd.in.h
index 25e41d6c..f410fa14 100644
--- a/lib/unistd.in.h
+++ b/lib/unistd.in.h
@@ -1,5 +1,5 @@
/* Substitute for and wrapper around <unistd.h>.
- Copyright (C) 2003-2017 Free Software Foundation, Inc.
+ Copyright (C) 2003-2018 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or
modify it under the terms of either:
@@ -70,7 +70,7 @@
/* But avoid namespace pollution on glibc systems. */
#if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \
|| ((@GNULIB_UNLINK@ || defined GNULIB_POSIXCHECK) \
- && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)) \
+ && (defined _WIN32 && ! defined __CYGWIN__)) \
|| ((@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK) \
&& defined __CYGWIN__)) \
&& ! defined __GLIBC__
@@ -103,13 +103,13 @@
lseek(), read(), unlink(), write() in <io.h>. */
#if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \
|| defined GNULIB_POSIXCHECK) \
- && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
+ && (defined _WIN32 && ! defined __CYGWIN__))
# include <io.h> /* mingw32, mingw64 */
# include <direct.h> /* mingw64, MSVC 9 */
#elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \
|| @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \
|| defined GNULIB_POSIXCHECK) \
- && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+ && (defined _WIN32 && ! defined __CYGWIN__)
# include <io.h>
#endif
@@ -409,6 +409,13 @@ _GL_WARN_ON_USE (dup3, "dup3 is unportable - "
#if @GNULIB_ENVIRON@
+# if defined __CYGWIN__ && !defined __i386__
+/* The 'environ' variable is defined in a DLL. Therefore its declaration needs
+ the '__declspec(dllimport)' attribute, but the system's <unistd.h> lacks it.
+ This leads to a link error on 64-bit Cygwin when the option
+ -Wl,--disable-auto-import is in use. */
+_GL_EXTERN_C __declspec(dllimport) char **environ;
+# endif
# if !@HAVE_DECL_ENVIRON@
/* Set of environment variables and values. An array of strings of the form
"VARIABLE=VALUE", terminated with a NULL. */
@@ -1491,7 +1498,7 @@ _GL_FUNCDECL_RPL (truncate, int, (const char *filename, off_t length)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (truncate, int, (const char *filename, off_t length));
# else
-# if !@HAVE_TRUNCATE@
+# if !@HAVE_DECL_TRUNCATE@
_GL_FUNCDECL_SYS (truncate, int, (const char *filename, off_t length)
_GL_ARG_NONNULL ((1)));
# endif