Use a export-file for Windows builds
Apparently even that doesn't make check-internal-symbols.sh happy with
mingw32. Going to disable that for DLLs again, but hopefully the
export-file is doing *something*.
diff --git a/src/Makefile.am b/src/Makefile.am
index 93879c4..d8f7502 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -164,16 +164,36 @@
DIST_SUBDIRS += hb-old
+
+# Put the library together
+
+if OS_WIN32
+export_symbols = -export-symbols harfbuzz.def
+harfbuzz_def_dependency = harfbuzz.def
+endif
+
# Use a C linker, not C++; Don't link to libstdc++
libharfbuzz_la_LINK = $(LINK) $(libharfbuzz_la_LDFLAGS)
libharfbuzz_la_SOURCES = $(HBSOURCES) $(HBHEADERS)
nodist_libharfbuzz_la_SOURCES = $(nodist_HBSOURCES)
libharfbuzz_la_CPPFLAGS = $(HBCFLAGS)
-libharfbuzz_la_LDFLAGS = $(AM_LDFLAGS) -version-info $(HB_LIBTOOL_VERSION_INFO) -no-undefined
+libharfbuzz_la_LDFLAGS = $(AM_LDFLAGS) -version-info $(HB_LIBTOOL_VERSION_INFO) $(export_symbols) -no-undefined
libharfbuzz_la_LIBADD = $(HBLIBS)
+libharfbuzz_la_DEPENDENCIES = $(harfbuzz_def_dependency)
pkginclude_HEADERS = $(HBHEADERS)
nodist_pkginclude_HEADERS = hb-version.h
+CLEANFILES += harfbuzz.def
+harfbuzz.def: $(HBHEADERS)
+ $(AM_V_GEN) (echo EXPORTS; \
+ (cat $^ || echo 'hb_ERROR ()' ) | \
+ $(EGREP) '^hb_.* \(' | \
+ sed -e 's/ (.*//' | \
+ LANG=C sort; \
+ echo LIBRARY libharfbuzz-$(HB_VERSION_MAJOR).dll; \
+ ) >"$@.tmp"
+ @ ! grep -q hb_ERROR "$@.tmp" && mv "$@.tmp" "$@" || ($(RM) "$@"; false)
+
GENERATORS = \
gen-arabic-table.py \
