cmake: Check for unistd.h.

ConfigureChecks.cmake

@@ -49,6 +49,7 @@ endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
 check_include_file(argp.h HAVE_ARGP_H)
 check_include_file(pty.h HAVE_PTY_H)
 check_include_file(termios.h HAVE_TERMIOS_H)
+check_include_file(unistd.h HAVE_UNISTD_H)
 
 if (WIN32)
   check_include_files("winsock2.h;ws2tcpip.h;wspiapi.h" HAVE_WSPIAPI_H)

config.h.cmake

@@ -23,6 +23,9 @@
 /* Define to 1 if you have the <termios.h> header file. */
 #cmakedefine HAVE_TERMIOS_H 1
 
+/* Define to 1 if you have the <unistd.h> header file. */
+#cmakedefine HAVE_UNISTD_H 1
+
 /* Define to 1 if you have the <openssl/aes.h> header file. */
 #cmakedefine HAVE_OPENSSL_AES_H 1
 

examples/sample.c

@@ -14,24 +14,31 @@ clients must be made or how a client should react.
 
 #include "config.h"
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
-#include <termios.h>
 
 #include <sys/select.h>
 #include <sys/time.h>
+
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 #ifdef HAVE_PTY_H
 #include <pty.h>
 #endif
+
 #include <sys/ioctl.h>
 #include <signal.h>
 #include <errno.h>
+#include <fcntl.h>
+
 #include <libssh/callbacks.h>
 #include <libssh/libssh.h>
 #include <libssh/sftp.h>
 
-#include <fcntl.h>
 
 #include "examples_common.h"
 #define MAXCMD 10

examples/samplesftp.c

@@ -15,11 +15,13 @@ clients must be made or how a client should react.
 
 #include <sys/statvfs.h>
 #include <stdio.h>
-#include <unistd.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <stdlib.h>
 #include <string.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 
 #include <libssh/libssh.h>
 #include <libssh/sftp.h>

examples/sshnetcat.c

@@ -13,10 +13,14 @@ clients must be made or how a client should react.
 
 #include "config.h"
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
+#ifdef HAVE_TERMIOS_H
 #include <termios.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 
 #include <sys/select.h>
 #include <sys/time.h>

src/agent.c

@@ -42,12 +42,12 @@
 #include <string.h>
 #include <stdio.h>
 
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 
-#ifndef _WIN32
 #include <netinet/in.h>
 #include <arpa/inet.h>
-#endif
 
 #include "libssh/agent.h"
 #include "libssh/priv.h"

src/channels1.c

@@ -27,6 +27,8 @@
 #include <stdio.h>
 #ifndef _WIN32
 #include <arpa/inet.h>
+#endif
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
 

src/getpass.c

@@ -21,6 +21,8 @@
  * MA 02111-1307, USA.
  */
 
+#include "config.h"
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -163,8 +165,12 @@ int ssh_getpass(const char *prompt,
 #else
 
 #include <fcntl.h>
+#ifdef HAVE_TERMIOS_H
 #include <termios.h>
+#endif
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 
 /**
  * @ingroup libssh_misc

src/gssapi.c

@@ -19,21 +19,24 @@
  * MA 02111-1307, USA.
  */
 
-#include "libssh/gssapi.h"
-#include "libssh/libssh.h"
-#include "libssh/ssh2.h"
-#include "libssh/buffer.h"
-#include "libssh/crypto.h"
-#include "libssh/callbacks.h"
-#include "libssh/string.h"
-#include "libssh/server.h"
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 
 #include <gssapi.h>
 
-/* to remove */
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
+#include <libssh/gssapi.h>
+#include <libssh/libssh.h>
+#include <libssh/ssh2.h>
+#include <libssh/buffer.h>
+#include <libssh/crypto.h>
+#include <libssh/callbacks.h>
+#include <libssh/string.h>
+#include <libssh/server.h>
 
 /** current state of an GSSAPI authentication */
 enum ssh_gssapi_state_e {

src/poll.c

@@ -115,10 +115,13 @@ static poll_fn ssh_poll_emu;
 #else /* _WIN32 */
 #include <sys/select.h>
 #include <sys/socket.h>
-#include <unistd.h>
 #include <sys/time.h>
 #endif /* _WIN32 */
 
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
 
 /*
  * This is a poll(2)-emulation using select for systems not providing a native

tests/torture.c

@@ -30,7 +30,10 @@
 # include <sys/stat.h>
 # include <dirent.h>
 # include <errno.h>
-# include <unistd.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
 #endif
 
 #include "torture.h"