[gegl] common/Makefile.am: add map-common.h to SOURCES

[Ell <ell src gnome org>]

commit 0fcdf65297d52564b36c9486fca56b47bd1779a6
Author: Ell <ell_se yahoo com>
Date:   Thu Nov 15 17:45:30 2018 -0500

    common/Makefile.am: add map-common.h to SOURCES

 operations/common/Makefile.am | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/operations/common/Makefile.am b/operations/common/Makefile.am
index 786c202a0..86426de71 100644
--- a/operations/common/Makefile.am
+++ b/operations/common/Makefile.am
@@ -66,6 +66,7 @@ gegl_common_la_SOURCES =\
        magick-load.c \
        mantiuk06.c \
        map-absolute.c \
+       map-common.h \
        map-relative.c \
        matting-global.c \
        mblur.c \