configure: session key handling in gmime maps to built_with("session_key")

This flag should make it easier to write the code for session-key
handling.

Note that this only works for GMime 2.6.21 and later (the session key
interface wasn't available before then).  It should be fine to build
the rest of notmuch if this functionality isn't available.

Note that this also adds the "session_key" built_with() aspect to
libnotmuch.

diff --git a/configure b/configure
index d3e30b53ea518c945c1fa2b3676c13c6cb83e4d8..1bf523192d31c90b943075660ffeb480f6906c05 100755 (executable)
--- a/configure
+++ b/configure
@@ -486,14 +486,21 @@ if pkg-config --exists "gmime-3.0"; then
     gmime_cflags=$(pkg-config --cflags gmime-3.0)
     gmime_ldflags=$(pkg-config --libs gmime-3.0)
     gmime_major=3
+    have_gmime_session_keys=1
 elif pkg-config --exists "gmime-2.6 >= $GMIME_MINVER"; then
     printf "Yes (2.6).\n"
     have_gmime=1
     gmime_cflags=$(pkg-config --cflags gmime-2.6)
     gmime_ldflags=$(pkg-config --libs gmime-2.6)
     gmime_major=2
+    if pkg-config --exists "gmime-2.6 >= 2.6.21"; then
+        have_gmime_session_keys=1
+    else
+        have_gmime_session_keys=0
+    fi
 else
     have_gmime=0
+    have_gmime_session_keys=0
     printf "No.\n"
     errors=$((errors + 1))
 fi
@@ -1096,6 +1103,9 @@ HAVE_TIMEGM = ${have_timegm}
 # Whether struct dirent has d_type (if not, then notmuch will use stat)
 HAVE_D_TYPE = ${have_d_type}
 
+# Whether the GMime version can handle extraction and reuse of session keys
+HAVE_GMIME_SESSION_KEYS = ${have_gmime_session_keys}
+
 # Whether the Xapian version in use supports compaction
 HAVE_XAPIAN_COMPACT = ${have_xapian_compact}
 
@@ -1181,6 +1191,7 @@ COMMON_CONFIGURE_CFLAGS = \\
        -DHAVE_D_TYPE=\$(HAVE_D_TYPE)                           \\
        -DSTD_GETPWUID=\$(STD_GETPWUID)                         \\
        -DSTD_ASCTIME=\$(STD_ASCTIME)                           \\
+       -DHAVE_GMIME_SESSION_KEYS=\$(HAVE_GMIME_SESSION_KEYS)   \\
        -DHAVE_XAPIAN_COMPACT=\$(HAVE_XAPIAN_COMPACT)           \\
        -DSILENCE_XAPIAN_DEPRECATION_WARNINGS                   \\
        -DHAVE_XAPIAN_FIELD_PROCESSOR=\$(HAVE_XAPIAN_FIELD_PROCESSOR) \\
@@ -1209,6 +1220,9 @@ NOTMUCH_HAVE_XAPIAN_FIELD_PROCESSOR=${have_xapian_field_processor}
 # Whether the Xapian version in use supports lock retry
 NOTMUCH_HAVE_XAPIAN_DB_RETRY_LOCK=${have_xapian_db_retry_lock}
 
+# Whether the GMime version can handle extraction and reuse of session keys
+NOTMUCH_HAVE_GMIME_SESSION_KEYS=${have_gmime_session_keys}
+
 # Which backend will Xapian use by default?
 NOTMUCH_DEFAULT_XAPIAN_BACKEND=${default_xapian_backend}
 

diff --git a/lib/built-with.c b/lib/built-with.c
index 27384bd044bc16999b6ddccf686433c983209c76..9cffd9f91d5a6cecdc736c8f3564cf5d6361b657 100644 (file)
--- a/lib/built-with.c
+++ b/lib/built-with.c
@@ -30,6 +30,8 @@ notmuch_built_with (const char *name)
        return HAVE_XAPIAN_FIELD_PROCESSOR;
     } else if (STRNCMP_LITERAL (name, "retry_lock") == 0) {
        return HAVE_XAPIAN_DB_RETRY_LOCK;
+    } else if (STRNCMP_LITERAL (name, "session_key") == 0) {
+       return HAVE_GMIME_SESSION_KEYS;
     } else {
        return false;
     }