add the Solaris location of 64 bit shared libraries
diff -r ab157a44e82f configure
--- configure	Thu May 13 19:26:50 2021 +0200
+++ configure	Thu May 13 19:28:07 2021 +0200
@@ -16320,7 +16320,7 @@
 
 
 valid_CPPFLAGS="$CPPFLAGS"; CPPFLAGS="$CPPFLAGS -I$SSLDIR/include"
-valid_LIBS="$LIBS"; LIBS="$LIBS -L$SSLDIR/lib64 -L$SSLDIR/lib -lssl -lcrypto"
+valid_LIBS="$LIBS"; LIBS="$LIBS -L$SSLDIR/lib64 -L$SSLDIR/lib/64 -L$SSLDIR/lib -lssl -lcrypto"
 
 for ac_func in FIPS_mode_set OSSL_PROVIDER_available
 do :
diff -r 3a6bef0d95ad src/Makefile.am
--- src/Makefile.am	Thu May 13 19:37:54 2021 +0200
+++ src/Makefile.am	Thu May 13 19:40:14 2021 +0200
@@ -35,7 +35,7 @@
 stunnel_CPPFLAGS += -DCONFDIR='"$(sysconfdir)/stunnel"'
 
 # TLS library
-stunnel_LDFLAGS = -L$(SSLDIR)/lib64 -L$(SSLDIR)/lib -lssl -lcrypto
+stunnel_LDFLAGS = -L$(SSLDIR)/lib64 -L$(SSLDIR)/lib/64 -L$(SSLDIR)/lib -lssl -lcrypto
 
 # stunnel3 script
 edit = sed \
diff -r 3a6bef0d95ad src/Makefile.in
--- src/Makefile.in	Thu May 13 19:37:54 2021 +0200
+++ src/Makefile.in	Thu May 13 19:40:14 2021 +0200
@@ -397,7 +397,7 @@
 	-DCONFDIR='"$(sysconfdir)/stunnel"'
 
 # TLS library
-stunnel_LDFLAGS = -L$(SSLDIR)/lib64 -L$(SSLDIR)/lib -lssl -lcrypto
+stunnel_LDFLAGS = -L$(SSLDIR)/lib64 -L$(SSLDIR)/lib/64 -L$(SSLDIR)/lib -lssl -lcrypto
 
 # stunnel3 script
 edit = sed \