Fix build on systems where size_t is (non-long) uint

[users/jgh/exim.git] / src / src / buildconfig.c

diff --git a/src/src/buildconfig.c b/src/src/buildconfig.c
index c90d940aa8fcc0b881af69a3bf6fdf1c17b67f79..27e73142fd2450d4cd29cc7e349b5cd95ede4531 100644 (file)
--- a/src/src/buildconfig.c
+++ b/src/src/buildconfig.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2012 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 
@@ -105,8 +105,10 @@ time_t test_time_t = 0;
 size_t test_size_t = 0;
 ssize_t test_ssize_t = 0;
 unsigned long test_ulong_t = 0L;
+unsigned int test_uint_t = 0;
 #endif
 long test_long_t = 0;
+int test_int_t = 0;
 FILE *base;
 FILE *new;
 int last_initial = 'A';
@@ -190,12 +192,17 @@ fprintf(new, "#define SSIZE_T_FMT  \"%%zd\"\n");
 #else
 if (sizeof(test_size_t) > sizeof (test_ulong_t))
   fprintf(new, "#define SIZE_T_FMT  \"%%llu\"\n");
-else
+else if (sizeof(test_size_t) > sizeof (test_uint_t))
   fprintf(new, "#define SIZE_T_FMT  \"%%lu\"\n");
+else
+  fprintf(new, "#define SIZE_T_FMT  \"%%u\"\n");
+
 if (sizeof(test_ssize_t) > sizeof(test_long_t))
   fprintf(new, "#define SSIZE_T_FMT  \"%%lld\"\n");
-else
+else if (sizeof(test_ssize_t) > sizeof(test_int_t))
   fprintf(new, "#define SSIZE_T_FMT  \"%%ld\"\n");
+else
+  fprintf(new, "#define SSIZE_T_FMT  \"%%d\"\n");
 #endif
 
 /* Now search the makefile for certain settings */
@@ -734,6 +741,21 @@ else if (isgroup)
     continue;
     }
 
+  /* DISABLE_DKIM is special; must be forced if no SUPPORT_TLS */
+  if (strcmp(name, "DISABLE_DKIM") == 0)
+    {
+    char *d_dkim = getenv("DISABLE_DKIM");
+    char *tls = getenv("SUPPORT_TLS");
+
+    if (d_dkim)
+      fprintf(new, "#define DISABLE_DKIM          yes\n");
+    else if (!tls)
+      fprintf(new, "#define DISABLE_DKIM          yes /* forced by lack of TLS */\n");
+    else
+      fprintf(new, "/* DISABLE_DKIM not set */\n");
+    continue;
+    }
+
   /* Otherwise, check whether a value exists in the environment. Remember if
   it is an AUTH setting or SUPPORT_CRYPTEQ. */
 
@@ -847,16 +869,17 @@ else if (isgroup)
         }
 
       /* how many bits Exim, as a client, demands must be in D-H */
-      /* as of GnuTLS 2.12.x, we ask for "normal" for D-H PK; before that, we
-      specify the number of bits.  We've stuck with the historical value, but
-      it can be overriden. */
-      else if ((strcmp(name, "EXIM_CLIENT_DH_MIN_BITS") == 0) ||
+      /* 1024 is a historical figure; some sites actually use lower, so we
+      permit the value to be lowered "dangerously" low, but not "insanely"
+      low.  Though actually, 1024 is becoming "dangerous". */
+      else if ((strcmp(name, "EXIM_CLIENT_DH_MIN_MIN_BITS") == 0) ||
+               (strcmp(name, "EXIM_CLIENT_DH_DEFAULT_MIN_BITS") == 0) ||
                (strcmp(name, "EXIM_SERVER_DH_BITS_PRE2_12") == 0))
         {
         long nv;
         char *end;
         nv = strtol(value, &end, 10);
-        if (end != value && *end == '\0' && nv >= 1000 && nv < 50000)
+        if (end != value && *end == '\0' && nv >= 512 && nv < 500000)
           {
           fprintf(new, "%s\n", value);
           }