src/Makefile.am: pass headers to gen-def.py as arguments, not env vars
diff --git a/src/Makefile.am b/src/Makefile.am
index 9d5662e..6dfec3b 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -277,13 +277,13 @@
check: $(DEF_FILES) # For check-symbols.sh
CLEANFILES += $(DEF_FILES)
harfbuzz.def: $(HBHEADERS) $(HBNODISTHEADERS)
- $(AM_V_GEN) headers="$^" $(srcdir)/gen-def.py "$@"
+ $(AM_V_GEN) $(srcdir)/gen-def.py "$@" $^
harfbuzz-subset.def: $(HB_SUBSET_headers)
- $(AM_V_GEN) headers="$^" $(srcdir)/gen-def.py "$@"
+ $(AM_V_GEN) $(srcdir)/gen-def.py "$@" $^
harfbuzz-icu.def: $(HB_ICU_headers)
- $(AM_V_GEN) headers="$^" $(srcdir)/gen-def.py "$@"
+ $(AM_V_GEN) $(srcdir)/gen-def.py "$@" $^
harfbuzz-gobject.def: $(HB_GOBJECT_headers)
- $(AM_V_GEN) headers="$^" $(srcdir)/gen-def.py "$@"
+ $(AM_V_GEN) $(srcdir)/gen-def.py "$@" $^
GENERATORS = \