[PATCH] Makefile: use fileno macro work around on AIX

[CHIGOT, CLEMENT]

Declare FILENO_IS_A_MACRO on AIX

On AIX, fileno(fp) is a macro and need to use the work around already made for 
BSD's. 

Signed-off-by: Clément Chigot <clement.chi...@atos.net>
---
 config.mak.uname | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config.mak.uname b/config.mak.uname
index 41e85fab1c..86cbe47627 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -269,6 +269,7 @@ ifeq ($(uname_S),AIX)
        INTERNAL_QSORT = UnfortunatelyYes
        NEEDS_LIBICONV = YesPlease
        BASIC_CFLAGS += -D_LARGE_FILES
+       FILENO_IS_A_MACRO = UnfortunatelyYes
        ifeq ($(shell expr "$(uname_V)" : '[1234]'),1)
                NO_PTHREADS = YesPlease
        else
-- 
2.17.1