# This patch removes the default(?) setting of passing -single_module
# flag to the loader.  From what I can gather, only the Darwin loader
# supports that, so this patch allows building on non-Darwin systems
diff -Naur spack-src/src/Makefile.am spack-src.patched/src/Makefile.am
--- spack-src/src/Makefile.am	2008-02-19 13:43:18.000000000 -0500
+++ spack-src.patched/src/Makefile.am	2020-12-02 11:11:52.780822127 -0500
@@ -6,7 +6,7 @@
 INCLUDES=-I$(top_srcdir)/include/
 
 # Set LDFLAGS to alow the HDF-EOS library to use extern variables from HDF4
-LDFLAGS=-Wl,-single_module
+#LDFLAGS=-Wl,-single_module
 
 # Build HDF-EOS2
 lib_LTLIBRARIES=libhdfeos.la
diff -Naur spack-src/src/Makefile.in spack-src.patched/src/Makefile.in
--- spack-src/src/Makefile.in	2009-05-19 12:12:34.000000000 -0400
+++ spack-src.patched/src/Makefile.in	2020-12-02 11:12:06.686234377 -0500
@@ -126,7 +126,7 @@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
 
 # Set LDFLAGS to alow the HDF-EOS library to use extern variables from HDF4
-LDFLAGS = -Wl,-single_module
+#LDFLAGS = -Wl,-single_module
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
 LIBTOOL = @LIBTOOL@