strongswan: fix build error 'no rule to make target libtls.la'

In some strongswan configurations, an implicit dependency could be missing.
This commit patches strongswan to force this dependency when needed.

Fixes several autobuild failures, like:
http://autobuild.buildroot.net/results/643f5b33973d5b12ffe6d84254bf3be9ed81d0ad/
http://autobuild.buildroot.net/results/24bcdcb83119e416c92458fa9ff2f5269957a743/

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/package/strongswan/strongswan-0001-force-tls-when-needed.patch b/package/strongswan/strongswan-0001-force-tls-when-needed.patch
new file mode 100644 (file)
index 0000000..8949f62
--- /dev/null
+++ b/package/strongswan/strongswan-0001-force-tls-when-needed.patch
@@ -0,0 +1,72 @@
+Force libtls when libpttls is enabled
+
+The libpttls library expects libtls.la to be present:
+libpttls_la_LIBADD = $(top_builddir)/src/libtls/libtls.la
+but there is no expressed dependency between them. Therefore, it is possible to
+create a configuration where libpttls is enabled and libtls is not, causing a
+build failure:
+
+make[4]: *** No rule to make target `../../src/libtls/libtls.la', needed by `libpttls.la'.  Stop.
+
+libpttls is enabled through USE_PTTLS, set when tnc_tnccs == true.
+  tnc_tnccs is true when any of tnc-imc, tnc_imv, tnccs_11, tnccs_dynamic or eap_tnc is true.
+
+libtls is enabled through USE_TLS, set when tls == true.
+  tls is true when any of eap_tls, eap_ttls or eap_peap is true.
+
+This patch forces tls to true, when tnc_tnccs is true, so that the required libtls.la dependency
+is built before it is used by libpttls.
+
+Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
+Upstream-status: will be submitted
+
+diff --git a/configure b/configure
+--- a/configure
++++ b/configure
+@@ -15900,10 +15900,6 @@ if test x$eap_sim = xtrue; then
+       simaka=true;
+ fi
+ 
+-if test x$eap_tls = xtrue -o x$eap_ttls = xtrue -o x$eap_peap = xtrue; then
+-      tls=true;
+-fi
+-
+ if test x$eap_radius = xtrue -o x$radattr = xtrue -o x$tnc_pdp = xtrue; then
+       radius=true;
+ fi
+@@ -15912,6 +15908,10 @@ if test x$tnc_imc = xtrue -o x$tnc_imv =
+       tnc_tnccs=true;
+ fi
+ 
++if test x$eap_tls = xtrue -o x$eap_ttls = xtrue -o x$eap_peap = xtrue -o x$tnc_tnccs = xtrue; then
++      tls=true;
++fi
++
+ if test x$imc_test = xtrue -o x$imv_test = xtrue -o x$imc_scanner = xtrue -o x$imv_scanner = xtrue -o x$imc_os = xtrue -o x$imv_os = xtrue -o x$imc_attestation = xtrue -o x$imv_attestation = xtrue; then
+       imcv=true;
+ fi
+diff --git a/configure.in b/configure.in
+--- a/configure.in
++++ b/configure.in
+@@ -313,10 +313,6 @@ if test x$eap_sim = xtrue; then
+       simaka=true;
+ fi
+ 
+-if test x$eap_tls = xtrue -o x$eap_ttls = xtrue -o x$eap_peap = xtrue; then
+-      tls=true;
+-fi
+-
+ if test x$eap_radius = xtrue -o x$radattr = xtrue -o x$tnc_pdp = xtrue; then
+       radius=true;
+ fi
+@@ -325,6 +321,10 @@ if test x$tnc_imc = xtrue -o x$tnc_imv =
+       tnc_tnccs=true;
+ fi
+ 
++if test x$eap_tls = xtrue -o x$eap_ttls = xtrue -o x$eap_peap = xtrue -o x$tnc_tnccs = xtrue; then
++      tls=true;
++fi
++
+ if test x$imc_test = xtrue -o x$imv_test = xtrue -o x$imc_scanner = xtrue -o x$imv_scanner = xtrue -o x$imc_os = xtrue -o x$imv_os = xtrue -o x$imc_attestation = xtrue -o x$imv_attestation = xtrue; then
+       imcv=true;
+ fi

diff --git a/package/strongswan/strongswan.mk b/package/strongswan/strongswan.mk
index cac68f8a112384b94167b35081a0a86e7fcbc95e..3444f9281bbe45fb0e8c823bc1cfe3d8919969de 100644 (file)
--- a/package/strongswan/strongswan.mk
+++ b/package/strongswan/strongswan.mk
@@ -66,4 +66,12 @@ STRONGSWAN_DEPENDENCIES +=                               \
       $(if $(BR2_PACKAGE_MYSQL_CLIENT),mysql_client)
 endif
 
+# Strongswan uses AC_LIB_PREFIX, which is relatively new.
+# Avoid make to try reconfiguring due to timestamp changes,
+# after patching configure{,.in}.
+define STRONGSWAN_AVOID_RECONF_HOOK
+       touch $(@D)/aclocal.m4
+endef
+STRONGSWAN_POST_PATCH_HOOKS += STRONGSWAN_AVOID_RECONF_HOOK
+
 $(eval $(autotools-package))