[gnome-mud] build: Quick-fix out-of-source builds

[Mart Raudsepp <mraudsepp src gnome org>]

commit f30e1871ca2da39c31340600c29ead34d5ab7d2e
Author: Mart Raudsepp <leio gentoo org>
Date:   Sun Dec 2 17:58:17 2018 +0200

    build: Quick-fix out-of-source builds
    
    The surrounding build code could use cleanup and isn't safe for
    multiple enumheaders, but as we are moving to meson rather sooner
    than later, just a quick fix for it.

 src/Makefile.am | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 3cc6921..808440e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -90,14 +90,14 @@ CLEANFILES = \
        $(BUILT_SOURCES)
 
 gnome-mud-builtins.h: $(enumheaders) gnome-mud-builtins.h.template
-       ( $(GLIB_MKENUMS) --template gnome-mud-builtins.h.template \
-           $(enumheaders) > gnome-mud-builtins.h.tmp \
+       ( $(GLIB_MKENUMS) --template $(srcdir)/gnome-mud-builtins.h.template \
+           $(srcdir)/$(enumheaders) > gnome-mud-builtins.h.tmp \
            && mv gnome-mud-builtins.h.tmp gnome-mud-builtins.h ) \
            || ( rm -f gnome-mud-builtins.h.tmp && exit 1 )
 
 gnome-mud-builtins.c: $(enumheaders) gnome-mud-builtins.c.template
-       ( $(GLIB_MKENUMS) --template gnome-mud-builtins.c.template \
-           $(enumheaders) > gnome-mud-builtins.c.tmp \
+       ( $(GLIB_MKENUMS) --template $(srcdir)/gnome-mud-builtins.c.template \
+           $(srcdir)/$(enumheaders) > gnome-mud-builtins.c.tmp \
            && mv gnome-mud-builtins.c.tmp gnome-mud-builtins.c ) \
            || ( rm -f gnome-mud-builtins.c.tmp && exit 1 )