clear_trust_info put into header

Makefile.conf

@@ -113,8 +113,7 @@ ifeq ($(BUILD_FOR),Linux)
     endif
 else ifeq ($(BUILD_FOR),Darwin)
     ifdef WARN
-        # FIXME Remove 'no-extended-offsetof' after ENGINE-236 is closed.
-        CFLAGS+= -Wall -pedantic -Wno-extended-offsetof
+        CFLAGS+= -Wall -pedantic
     else
         CFLAGS+= -w
     endif

src/pEpEngine.h

@@ -1373,6 +1373,10 @@ PEP_STATUS set_pgp_keypair(PEP_SESSION session, const char* fpr);
 
 PEP_STATUS set_pEp_version(PEP_SESSION session, pEp_identity* ident, unsigned int new_ver_major, unsigned int new_ver_minor);
 
+PEP_STATUS clear_trust_info(PEP_SESSION session,
+                            const char* user_id,
+                            const char* fpr);
+                            
 // Generally ONLY called by set_as_pEp_user, and ONLY from < 2.0 to 2.0.
 PEP_STATUS upgrade_pEp_version_by_user_id(PEP_SESSION session, 
         pEp_identity* ident,