Now installing (and reading) UI file to (from) $(pkgdatadir)

src/Makefile.am

@@ -1,6 +1,12 @@
+AM_CPPFLAGS = -DG_LOG_DOMAIN=\"Astrognome\" -DLOCALEDIR=\"$(localedir)\" -DPKGDATADIR=\"$(pkgdatadir)\"
 bin_PROGRAMS = astrognome
 
 astrognome_SOURCES = astrognome.c
 astrognome_LDADD = $(SWE_GLIB_LIBS) $(GTK_LIBS)
 astrognome_LDFLAGS = -rdynamic
 astrognome_CFLAGS = $(SWE_GLIB_CFLAGS) $(CFLAGS) $(GTK_CFLAGS) -Wall
+
+guidir = $(pkgdatadir)
+gui_DATA = astrognome.ui
+
+EXTRA_DIST = $(gui_DATA)

src/astrognome.c

@@ -3,7 +3,7 @@
 
 #include <swe-glib.h>
 
-#define UI_FILE "/home/polesz/Projektek/c/astrognome/src/astrognome.ui"
+#define UI_FILE PKGDATADIR "/astrognome.ui"
 
 GtkBuilder *builder;