diff --git a/admin/Makefile.am b/admin/Makefile.am
index 3948e3fdd..895516654 100644
--- a/admin/Makefile.am
+++ b/admin/Makefile.am
@@ -4,8 +4,6 @@ include $(top_srcdir)/Makefile.am.common
 
 AM_CPPFLAGS += $(INCLUDE_readline) $(INCLUDE_hcrypto)
 
-SLC = $(top_builddir)/lib/sl/slc
-
 man_MANS = ktutil.8
 
 sbin_PROGRAMS = ktutil
diff --git a/configure.in b/configure.in
index 41299b3d9..d1ed66a1b 100644
--- a/configure.in
+++ b/configure.in
@@ -61,6 +61,26 @@ LT_INIT([shared static win32-dll])
 AM_CONDITIONAL(ENABLE_SHARED, test "$enable_shared" = "yes")
 rk_VERSIONSCRIPT
 
+dnl
+dnl Helper bits for cross compiling
+dnl
+
+AM_CONDITIONAL(CROSS_COMPILE, test "${cross_compiling}" = yes)
+
+if test "${cross_compiling}" != yes ; then
+   ASN1_COMPILE="\$(top_builddir)/lib/asn1/asn1_compile\$(EXEEXT)"
+   SLC="\$(top_builddir)/lib/sl/slc"
+else
+   ASN1_COMPILE="asn1_compile"
+   SLC="slc"
+fi
+
+AC_SUBST([ASN1_COMPILE])
+AC_SUBST([SLC])
+
+
+dnl ---
+
 AC_DEFINE(HEIM_WEAK_CRYPTO, 1, [Define if you want support for weak crypto])
 
 rk_TEST_PACKAGE(openldap,
diff --git a/kadmin/Makefile.am b/kadmin/Makefile.am
index fda3bf795..03617ee79 100644
--- a/kadmin/Makefile.am
+++ b/kadmin/Makefile.am
@@ -8,8 +8,6 @@ sbin_PROGRAMS = kadmin
 
 libexec_PROGRAMS = kadmind
 
-SLC = $(top_builddir)/lib/sl/slc
-
 man_MANS = kadmin.8 kadmind.8
 
 noinst_PROGRAMS = add_random_users
diff --git a/kuser/Makefile.am b/kuser/Makefile.am
index a88e39b26..b1d246d08 100644
--- a/kuser/Makefile.am
+++ b/kuser/Makefile.am
@@ -15,8 +15,6 @@ man_MANS = \
 	kgetcred.1 \
 	kimpersonate.1
 
-SLC = $(top_builddir)/lib/sl/slc
-
 bin_PROGRAMS = kinit klist kdestroy kgetcred kswitch
 libexec_PROGRAMS = kdigest kimpersonate
 
diff --git a/lib/asn1/Makefile.am b/lib/asn1/Makefile.am
index 125039931..482c6d879 100644
--- a/lib/asn1/Makefile.am
+++ b/lib/asn1/Makefile.am
@@ -596,34 +596,34 @@ $(gen_files_cms) cms_asn1.hx: cms_asn1_files
 $(gen_files_test) test_asn1.hx: test_asn1_files
 
 rfc2459_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/rfc2459.asn1
-	./asn1_compile$(EXEEXT) --preserve-binary=TBSCertificate --preserve-binary=TBSCRLCertList --preserve-binary=Name --sequence=GeneralNames --sequence=Extensions --sequence=CRLDistributionPoints $(srcdir)/rfc2459.asn1 rfc2459_asn1 || (rm -f rfc2459_asn1_files ; exit 1)
+	$(ASN1_COMPILE) --preserve-binary=TBSCertificate --preserve-binary=TBSCRLCertList --preserve-binary=Name --sequence=GeneralNames --sequence=Extensions --sequence=CRLDistributionPoints $(srcdir)/rfc2459.asn1 rfc2459_asn1 || (rm -f rfc2459_asn1_files ; exit 1)
 
 cms_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/cms.asn1 $(srcdir)/cms.opt
-	./asn1_compile$(EXEEXT) --option-file=$(srcdir)/cms.opt $(srcdir)/cms.asn1 cms_asn1 || (rm -f cms_asn1_files ; exit 1)
+	$(ASN1_COMPILE) --option-file=$(srcdir)/cms.opt $(srcdir)/cms.asn1 cms_asn1 || (rm -f cms_asn1_files ; exit 1)
 
 krb5_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/krb5.asn1 $(srcdir)/krb5.opt
-	./asn1_compile$(EXEEXT) --option-file=$(srcdir)/krb5.opt $(srcdir)/krb5.asn1 krb5_asn1 || (rm -f krb5_asn1_files ; exit 1)
+	$(ASN1_COMPILE) --option-file=$(srcdir)/krb5.opt $(srcdir)/krb5.asn1 krb5_asn1 || (rm -f krb5_asn1_files ; exit 1)
 
 pkinit_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/pkinit.asn1
-	./asn1_compile$(EXEEXT) $(srcdir)/pkinit.asn1 pkinit_asn1 || (rm -f pkinit_asn1_files ; exit 1)
+	$(ASN1_COMPILE) $(srcdir)/pkinit.asn1 pkinit_asn1 || (rm -f pkinit_asn1_files ; exit 1)
 
 pkcs8_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/pkcs8.asn1
-	./asn1_compile$(EXEEXT) $(srcdir)/pkcs8.asn1 pkcs8_asn1 || (rm -f pkcs8_asn1_files ; exit 1)
+	$(ASN1_COMPILE) $(srcdir)/pkcs8.asn1 pkcs8_asn1 || (rm -f pkcs8_asn1_files ; exit 1)
 
 pkcs9_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/pkcs9.asn1
-	./asn1_compile$(EXEEXT) $(srcdir)/pkcs9.asn1 pkcs9_asn1 || (rm -f pkcs9_asn1_files ; exit 1)
+	$(ASN1_COMPILE) $(srcdir)/pkcs9.asn1 pkcs9_asn1 || (rm -f pkcs9_asn1_files ; exit 1)
 
 pkcs12_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/pkcs12.asn1
-	./asn1_compile$(EXEEXT) $(srcdir)/pkcs12.asn1 pkcs12_asn1 || (rm -f pkcs12_asn1_files ; exit 1)
+	$(ASN1_COMPILE) $(srcdir)/pkcs12.asn1 pkcs12_asn1 || (rm -f pkcs12_asn1_files ; exit 1)
 
 digest_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/digest.asn1
-	./asn1_compile$(EXEEXT) $(srcdir)/digest.asn1 digest_asn1 || (rm -f digest_asn1_files ; exit 1)
+	$(ASN1_COMPILE) $(srcdir)/digest.asn1 digest_asn1 || (rm -f digest_asn1_files ; exit 1)
 
 kx509_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/kx509.asn1
-	./asn1_compile$(EXEEXT) $(srcdir)/kx509.asn1 kx509_asn1 || (rm -f kx509_asn1_files ; exit 1)
+	$(ASN1_COMPILE) $(srcdir)/kx509.asn1 kx509_asn1 || (rm -f kx509_asn1_files ; exit 1)
 
 test_asn1_files: asn1_compile$(EXEEXT) $(srcdir)/test.asn1
-	./asn1_compile$(EXEEXT) --sequence=TESTSeqOf $(srcdir)/test.asn1 test_asn1 || (rm -f test_asn1_files ; exit 1)
+	$(ASN1_COMPILE) --sequence=TESTSeqOf $(srcdir)/test.asn1 test_asn1 || (rm -f test_asn1_files ; exit 1)
 
 EXTRA_DIST =		\
 	cms.asn1	\
diff --git a/lib/gssapi/Makefile.am b/lib/gssapi/Makefile.am
index a5a5e204d..3abfec72f 100644
--- a/lib/gssapi/Makefile.am
+++ b/lib/gssapi/Makefile.am
@@ -262,10 +262,10 @@ $(spnego_files) spnego_asn1.hx: spnego_asn1_files
 $(gssapi_files) gssapi_asn1.hx: gssapi_asn1_files
 
 spnego_asn1_files: ../asn1/asn1_compile$(EXEEXT) $(srcdir)/spnego/spnego.asn1 $(srcdir)/spnego/spnego.opt
-	../asn1/asn1_compile$(EXEEXT) --option-file=$(srcdir)/spnego/spnego.opt $(srcdir)/spnego/spnego.asn1 spnego_asn1
+	$(ASN1_COMPILE) --option-file=$(srcdir)/spnego/spnego.opt $(srcdir)/spnego/spnego.asn1 spnego_asn1
 
 gssapi_asn1_files: ../asn1/asn1_compile$(EXEEXT) $(srcdir)/mech/gssapi.asn1
-	../asn1/asn1_compile$(EXEEXT) $(srcdir)/mech/gssapi.asn1 gssapi_asn1
+	$(ASN1_COMPILE) $(srcdir)/mech/gssapi.asn1 gssapi_asn1
 
 $(srcdir)/krb5/gsskrb5-private.h:
 	cd $(srcdir) && perl ../../cf/make-proto.pl -q -P comment -p krb5/gsskrb5-private.h $(krb5src) || rm -f krb5/gsskrb5-private.h
@@ -307,8 +307,6 @@ gss_LDADD = libgssapi.la \
 	$(LIB_readline) \
 	$(LIB_roken)
 
-SLC = $(top_builddir)/lib/sl/slc
-
 gss-commands.c gss-commands.h: gss-commands.in
 	$(SLC) $(srcdir)/gss-commands.in
 
diff --git a/lib/hdb/Makefile.am b/lib/hdb/Makefile.am
index 73b7a1100..2f35e58ba 100644
--- a/lib/hdb/Makefile.am
+++ b/lib/hdb/Makefile.am
@@ -109,7 +109,7 @@ $(srcdir)/hdb-private.h:
 $(gen_files_hdb) hdb_asn1.h: hdb_asn1_files
 
 hdb_asn1_files: ../asn1/asn1_compile$(EXEEXT) $(srcdir)/hdb.asn1
-	../asn1/asn1_compile$(EXEEXT) $(srcdir)/hdb.asn1 hdb_asn1
+	$(ASN1_COMPILE) $(srcdir)/hdb.asn1 hdb_asn1
 
 $(libhdb_la_OBJECTS): hdb_asn1.h hdb_err.h
 
diff --git a/lib/hx509/Makefile.am b/lib/hx509/Makefile.am
index e19d0e9dc..13e0d43d1 100644
--- a/lib/hx509/Makefile.am
+++ b/lib/hx509/Makefile.am
@@ -114,16 +114,14 @@ $(gen_files_ocsp) ocsp_asn1.h: ocsp_asn1_files
 $(gen_files_pkcs10) pkcs10_asn1.h: pkcs10_asn1_files
 $(gen_files_crmf) crmf_asn1.h: crmf_asn1_files
 
-asn1_compile = ../asn1/asn1_compile$(EXEEXT)
+ocsp_asn1_files: ../asn1/asn1_compile$(EXEEXT) $(srcdir)/ocsp.asn1
+	$(ASN1_COMPILE) --preserve-binary=OCSPTBSRequest --preserve-binary=OCSPResponseData $(srcdir)/ocsp.asn1 ocsp_asn1 || (rm -f ocsp_asn1_files ; exit 1)
 
-ocsp_asn1_files: $(asn1_compile) $(srcdir)/ocsp.asn1
-	$(asn1_compile) --preserve-binary=OCSPTBSRequest --preserve-binary=OCSPResponseData $(srcdir)/ocsp.asn1 ocsp_asn1 || (rm -f ocsp_asn1_files ; exit 1)
+pkcs10_asn1_files: ../asn1/asn1_compile$(EXEEXT) $(srcdir)/pkcs10.asn1
+	$(ASN1_COMPILE) --preserve-binary=CertificationRequestInfo $(srcdir)/pkcs10.asn1 pkcs10_asn1 || (rm -f pkcs10_asn1_files ; exit 1)
 
-pkcs10_asn1_files: $(asn1_compile) $(srcdir)/pkcs10.asn1
-	$(asn1_compile) --preserve-binary=CertificationRequestInfo $(srcdir)/pkcs10.asn1 pkcs10_asn1 || (rm -f pkcs10_asn1_files ; exit 1)
-
-crmf_asn1_files: $(asn1_compile) $(srcdir)/crmf.asn1
-	$(asn1_compile) $(srcdir)/crmf.asn1 crmf_asn1 || (rm -f crmf_asn1_files ; exit 1)
+crmf_asn1_files: ../asn1/asn1_compile$(EXEEXT) $(srcdir)/crmf.asn1
+	$(ASN1_COMPILE) $(srcdir)/crmf.asn1 crmf_asn1 || (rm -f crmf_asn1_files ; exit 1)
 
 $(libhx509_la_OBJECTS): $(srcdir)/hx509-protos.h $(srcdir)/hx509-private.h $(srcdir)/hx_locl.h
 $(libhx509_la_OBJECTS): ocsp_asn1.h pkcs10_asn1.h
@@ -137,8 +135,6 @@ $(srcdir)/hx509-private.h:
 dist_include_HEADERS = hx509.h hx509-protos.h
 nodist_include_HEADERS = hx509_err.h
 
-SLC = $(top_builddir)/lib/sl/slc
-
 bin_PROGRAMS = hxtool
 
 hxtool-commands.c hxtool-commands.h: hxtool-commands.in $(SLC)
diff --git a/lib/kadm5/Makefile.am b/lib/kadm5/Makefile.am
index 8dbb86438..6a56c0221 100644
--- a/lib/kadm5/Makefile.am
+++ b/lib/kadm5/Makefile.am
@@ -2,8 +2,6 @@
 
 include $(top_srcdir)/Makefile.am.common
 
-SLC = $(top_builddir)/lib/sl/slc
-
 lib_LTLIBRARIES = libkadm5srv.la libkadm5clnt.la
 libkadm5srv_la_LDFLAGS = -version-info 8:1:0
 libkadm5clnt_la_LDFLAGS = -version-info 7:1:0