From: Hans Johnson <hans-johnson@uiowa.edu>
Date: Wed, 16 Jan 2019 16:37:30 +0000 (-0600)
Subject: COMP: Fix missing header unistd.h
X-Git-Tag: 1.9.9-b1~549
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=80c2fdf2cdf9bc1840bb87e4a52c124122ff9202;p=thirdparty%2Fzlib-ng.git

COMP: Fix missing header unistd.h

zlib-ng/gzlib.c:196:9: warning: implicit declaration of function 'lseek' is invalid in C99 [-Wimplicit-function-declaration]
        LSEEK(state->fd, 0, SEEK_END);  /* so gzoffset() is correct */
        ^
zlib-ng/gzlib.c:17:17: note: expanded from macro 'LSEEK'
                ^
[ 61%] Building C object CMakeFiles/zlibstatic.dir/gzread.c.o
zlib-ng/gzread.c:27:15: warning: implicit declaration of function 'read' is invalid in C99 [-Wimplicit-function-declaration]
        ret = read(state->fd, buf + *have, len - *have);
              ^
zlib-ng/gzread.c:596:11: warning: implicit declaration of function 'close' is invalid in C99 [-Wimplicit-function-declaration]
    ret = close(state->fd);
          ^
[ 62%] Building C object CMakeFiles/zlibstatic.dir/gzwrite.c.o
zlib-ng/gzwrite.c:84:15: warning: implicit declaration of function 'write' is invalid in C99 [-Wimplicit-function-declaration]
        got = write(state->fd, strm->next_in, strm->avail_in);
              ^
zlib-ng/gzwrite.c:100:33: warning: implicit declaration of function 'write' is invalid in C99 [-Wimplicit-function-declaration]
            if (have && ((got = write(state->fd, state->x.next, (unsigned long)have)) < 0 || (unsigned)got != have)) {
                                ^
zlib-ng/gzwrite.c:512:9: warning: implicit declaration of function 'close' is invalid in C99 [-Wimplicit-function-declaration]
    if (close(state->fd) == -1)"
---

diff --git a/gzguts.h b/gzguts.h
index c32b6320..5c1d7d8e 100644
--- a/gzguts.h
+++ b/gzguts.h
@@ -38,6 +38,10 @@
 #  include <stddef.h>
 #endif
 
+#if !defined(_MSC_VER) || defined(__MINGW__)
+#  include <unistd.h>       /* for lseek(), read(), close(), write(), unlink() */
+#endif
+
 #if defined(_MSC_VER) || defined(WIN32)
 #  include <io.h>
 #endif