adapting to alpine image

- time_t -> u64:  see [1]
- removing dynamic library as cdylib is unsupported

[1] rust-lang/libc#1848

Author: codingpeanut15

Makefile

@@ -70,7 +70,6 @@ build:
 
 install: build
 	mkdir -p $(LIB_DIR) $(PKGCONFIG_DIR)
-	$(INSTALL) $(LIB_DYNAMIC_PATH) $(LIB_DIR)
 	$(INSTALL) $(LIB_STATIC_PATH) $(LIB_DIR)
 	$(INSTALL) $(PKGCONFIG_PATH) $(PKGCONFIG_DIR)
 

src/lib.rs

@@ -25,7 +25,6 @@ use libc::{
     c_char,
     c_uint,
     size_t,
-    time_t,
 };
 
 use chrono::LocalResult;
@@ -1205,7 +1204,7 @@ ffi!(fn pgp_encrypt_and_sign(session: *mut Session,
 // PEP_STATUS _pgp_generate_keypair(PEP_SESSION session, pEp_identity *identity, time_t when)
 ffi!(fn _pgp_generate_keypair(session: *mut Session,
                               identity: *mut PepIdentity,
-                              when: time_t)
+                              when: i64)
     -> Result<()>
 {
     let session = Session::as_mut(session)?;
@@ -2005,7 +2004,7 @@ fn _pgp_key_expired(vc: &ValidCert) -> bool
 //                            const time_t when, bool *expired)
 ffi!(fn pgp_key_expired(session: *mut Session,
                         fpr: *const c_char,
-                        when: time_t,
+                        when: i64,
                         expiredp: *mut bool)
     -> Result<()>
 {
@@ -2226,7 +2225,7 @@ ffi!(fn pgp_get_key_rating(session: *mut Session, fpr: *const c_char,
 // PEP_STATUS pgp_key_created(PEP_SESSION session, const char *fpr, time_t *created)
 ffi!(fn pgp_key_created(session: *mut Session,
                         fpr: *const c_char,
-                        createdp: *mut time_t)
+                        createdp: *mut i64)
     -> Result<()>
 {
     let session = Session::as_mut(session)?;
@@ -2241,7 +2240,7 @@ ffi!(fn pgp_key_created(session: *mut Session,
         UnknownError,
         "Creation time out of range")?.as_secs();
 
-    *createdp = t as time_t;
+    *createdp = t as i64;
 
     Ok(())
 });