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-rw-r--r--external/liblangtag/ExternalProject_liblangtag.mk3
1 files changed, 2 insertions, 1 deletions
diff --git a/external/liblangtag/ExternalProject_liblangtag.mk b/external/liblangtag/ExternalProject_liblangtag.mk
index 060c6f3601a8..51dc4f4b0c68 100644
--- a/external/liblangtag/ExternalProject_liblangtag.mk
+++ b/external/liblangtag/ExternalProject_liblangtag.mk
@@ -33,7 +33,8 @@ $(call gb_ExternalProject_get_state_target,liblangtag,build):
$(if $(ENABLE_OPTIMIZED), \
$(gb_COMPILEROPTFLAGS),$(gb_COMPILERNOOPTFLAGS)) \
$(if $(call gb_Module__symbols_enabled,liblangtag),$(gb_DEBUGINFO_FLAGS))' \
- $(if $(CROSS_COMPILING),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM) "ac_cv_va_copy=no") \
+ $(if $(CROSS_COMPILING),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM) \
+ $(if $(filter WNT,$(OS)),"lt_cv_c99_vsnprintf=yes" "ac_cv_va_copy=yes","ac_cv_va_copy=no")) \
LIBXML2_CFLAGS="$(LIBXML_CFLAGS)" \
LIBXML2_LIBS="$(if $(filter WNT,$(OS)),-L$(call gb_UnpackedTarball_get_dir,libxml2)/win32/bin.msvc -llibxml2,$(LIBXML_LIBS))" \
$(if $(filter MACOSX,$(OS)),--prefix=/@.__________________________________________________URELIB) \