(NEED_UNISTD_H): Defined.

3 files changed, 9 insertions, 0 deletions

diff --git a/src/m/ibm370aix.h b/src/m/ibm370aix.h
index 8b9b8499770..57b5ff67b9d 100644
--- a/src/m/ibm370aix.h
+++ b/src/m/ibm370aix.h
@@ -4,6 +4,9 @@
 
 #define AIX
 
+/* Include unistd.h, even though we don't define POSIX.  */
+#define NEED_UNISTD_H
+
 /* these were defined in "ibmps2-aix.h" */
 #undef INTEL386
 #undef aix386
diff --git a/src/s/aix3-1.h b/src/s/aix3-1.h
index 3c33b210153..7ce23b41167 100644
--- a/src/s/aix3-1.h
+++ b/src/s/aix3-1.h
@@ -218,6 +218,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 #define SYSTEM_MALLOC
 
+/* Include unistd.h, even though we don't define POSIX.  */
+#define NEED_UNISTD_H
+
 /* AIX doesn't define this.  */
 #define unix 1
 
diff --git a/src/s/irix4-0.h b/src/s/irix4-0.h
index c8097bb98b0..722cac19650 100644
--- a/src/s/irix4-0.h
+++ b/src/s/irix4-0.h
@@ -10,6 +10,9 @@
 
 #undef NEED_SIOCTL
 
+/* Include unistd.h, even though we don't define POSIX.  */
+#define NEED_UNISTD_H
+
 /* Make process_send_signal work by "typing" a signal character on the pty.  */
 #define SIGNALS_VIA_CHARACTERS