To get things to compile on Solaris, change configure to check

	for -lpthread since in libc the thread functions are defined
	but all return ENOSYS, you need to explicitely link with -lphtread.
	the ctype functions is*() arguments should be explicitely cast
	since Solaris use them as indexes.  __REENTRANT as to be define
	if compile with support for threads.  Never realize this but
	setenv() is a BSD/GNU thing, so took a variant from libiberty
	to cope.

+2001-04-16  Alain Magloire
+
+	To get things to compile on Solaris, change configure to check
+	for -lpthread since in libc the thread functions are defined
+	but all return ENOSYS, you need to explicitely link with -lphtread.
+	the ctype functions is*() arguments should be explicitely cast
+	since Solaris use them as indexes.  __REENTRANT as to be define
+	if compile with support for threads.  Never realize this but
+	setenv() is a BSD/GNU thing, so took a variant from libiberty
+	to cope.
+
+	* configure.in: Check for setenv. First check if -lphtread is ok.
+	* lib/setenv.c: New functions.
+	* lib/Makefile.am: add setenv.c in EXTRA_DIST.
+	* imap4d/imap4d.h: Include <alloca.h>
+	* mailbox/attachment.c: Include <alloca.h>
+	* (_header_get_param): isspace() cast argument.
+	* mail/mail.h: check if <paths.h> is available if not
+	define _PATH_SENDMAIL=/usr/lib/sendmail.
+	* mailbox/folder_imap.c: if pthread available, define _REENTRANT.
+	Include <alloca.h>.
+	(imap_bodystructure0): isdigit() cast argument.
+	* mailbox/mbx_mbox.c: if pthread available, define _REENTRANT.
+	Include <alloca.h>.
+	* mailbox/parse822.c: isdigit() cast argument unsigned.
+
 2001-04-15  Alain Magloire
 
 	The FILE* stream "stdout" is not an lvalue so it is an error to

@@ -68,7 +68,7 @@ AC_FUNC_ALLOCA
 AC_FUNC_MMAP
 # FIXME: Provide the GNU one for loosing platforms
 AC_FUNC_FNMATCH
-AC_REPLACE_FUNCS(snprintf strtok_r vasprintf strncasecmp strcasecmp)
+AC_REPLACE_FUNCS(setenv snprintf strtok_r strncasecmp strcasecmp vasprintf)
 AC_CHECK_FUNCS(mkstemp)
 
 dnl Check for libraries
@@ -104,9 +104,13 @@ AC_SUBST(AUTHLIBS)
 
 dnl Check threading support
 if test x"$usepthread" = x"yes"; then
-	AC_SEARCH_LIBS(pthread_cancel, pthread,
-		[AC_CHECK_FUNCS(pthread_rwlock_init)
-			AC_CHECK_HEADERS(pthread.h,  AC_DEFINE(WITH_PTHREAD))])
+	AC_CHECK_LIB(pthread, pthread_cancel, [AC_CHECK_HEADERS(pthread.h,
+		AC_DEFINE(WITH_PTHREAD))
+		LIBS="$LIBS -lpthread"
+		AC_CHECK_FUNCS(pthread_rwlock_init)],
+		AC_SEARCH_LIBS(pthread_cancel, pthread,
+			[AC_CHECK_FUNCS(pthread_rwlock_init)
+			AC_CHECK_HEADERS(pthread.h, AC_DEFINE(WITH_PTHREAD))]))
 fi
 
 dnl Do we need extra libs for networking?

@@ -47,6 +47,11 @@
 #include <stdarg.h>
 #include <sys/time.h>
 #include <sys/stat.h>
+
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+#endif
+
 #ifdef HAVE_STRINGS_H
 # include <strings.h>
 #endif

@@ -4,8 +4,8 @@ noinst_LIBRARIES = libmailutils.a
 libmailutils_a_SOURCES = basename.c getopt.c getopt1.c md5.c getline.c \
   xstrdup.c xmalloc.c argcv.c
 
-EXTRA_DIST = alloca.c snprintf.c strchrnul.c strndup.c strnlen.c strtok_r.c \
-  xstrtol.c vasprintf.c
+EXTRA_DIST = alloca.c setenv.c snprintf.c strchrnul.c strndup.c strnlen.c \
+  strtok_r.c xstrtol.c vasprintf.c
 
 noinst_HEADERS = getopt.h md5.h getline.h snprintf.h xstrtol.h xalloc.h \
  argcv.h error.h

+/* Copyright (C) 1992, 1995, 1996, 1997, 2001 Free Software Foundation, Inc.
+   This file based on setenv.c in the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <errno.h>
+
+#if HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+#include <sys/types.h> /* For `size_t' */
+#include <stdio.h>     /* For `NULL' */
+#endif
+#if HAVE_STRING_H
+# include <string.h>
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#define __environ	environ
+extern char **environ;
+
+/* LOCK and UNLOCK are defined as no-ops.  This makes the libiberty
+ * implementation MT-Unsafe. */
+#define LOCK
+#define UNLOCK
+
+/* Below this point, it's verbatim code from the glibc-2.0 implementation */
+
+/* If this variable is not a null pointer we allocated the current
+   environment.  */
+static char **last_environ;
+
+
+int
+setenv (name, value, replace)
+     const char *name;
+     const char *value;
+     int replace;
+{
+  register char **ep;
+  register size_t size;
+  const size_t namelen = strlen (name);
+  const size_t vallen = strlen (value) + 1;
+
+  LOCK;
+
+  size = 0;
+  if (__environ != NULL)
+    for (ep = __environ; *ep != NULL; ++ep)
+      if (!strncmp (*ep, name, namelen) && (*ep)[namelen] == '=')
+	break;
+      else
+	++size;
+
+  if (__environ == NULL || *ep == NULL)
+    {
+      char **new_environ;
+      if (__environ == last_environ && __environ != NULL)
+	/* We allocated this space; we can extend it.  */
+	new_environ = (char **) realloc (last_environ,
+					 (size + 2) * sizeof (char *));
+      else
+	new_environ = (char **) malloc ((size + 2) * sizeof (char *));
+
+      if (new_environ == NULL)
+	{
+	  UNLOCK;
+	  return -1;
+	}
+
+      new_environ[size] = malloc (namelen + 1 + vallen);
+      if (new_environ[size] == NULL)
+	{
+	  free ((char *) new_environ);
+	  errno = ENOMEM;
+	  UNLOCK;
+	  return -1;
+	}
+
+      if (__environ != last_environ)
+	memcpy ((char *) new_environ, (char *) __environ,
+		size * sizeof (char *));
+
+      memcpy (new_environ[size], name, namelen);
+      new_environ[size][namelen] = '=';
+      memcpy (&new_environ[size][namelen + 1], value, vallen);
+
+      new_environ[size + 1] = NULL;
+
+      last_environ = __environ = new_environ;
+    }
+  else if (replace)
+    {
+      size_t len = strlen (*ep);
+      if (len + 1 < namelen + 1 + vallen)
+	{
+	  /* The existing string is too short; malloc a new one.  */
+	  char *new = malloc (namelen + 1 + vallen);
+	  if (new == NULL)
+	    {
+	      UNLOCK;
+	      return -1;
+	    }
+	  *ep = new;
+	}
+      memcpy (*ep, name, namelen);
+      (*ep)[namelen] = '=';
+      memcpy (&(*ep)[namelen + 1], value, vallen);
+    }
+
+  UNLOCK;
+
+  return 0;
+}
+
+void
+unsetenv (name)
+     const char *name;
+{
+  const size_t len = strlen (name);
+  char **ep;
+
+  LOCK;
+
+  for (ep = __environ; *ep; ++ep)
+    if (!strncmp (*ep, name, len) && (*ep)[len] == '=')
+      {
+	/* Found it.  Remove this pointer by moving later ones back.  */
+	char **dp = ep;
+	do
+	  dp[0] = dp[1];
+	while (*dp++);
+	/* Continue the loop in case NAME appears again.  */
+      }
+
+  UNLOCK;
+}

@@ -32,6 +32,9 @@
 #include <stdarg.h>
 #include <signal.h>
 #include <ctype.h>
+#ifdef HAVE_PATHS_H
+#include <paths.h>
+#endif
 
 #include <argp.h>
 
@@ -146,6 +149,10 @@ struct mail_env_entry *util_find_env __P((char *var));
 int util_printenv __P((int set));
 int util_isdeleted __P((int message));
 
+#ifndef _PATH_SENDMAIL
+#define _PATH_SENDMAIL "/usr/lib/sendmail"
+#endif
+
 #ifdef __cplusplus
 }
 #endif

@@ -26,6 +26,10 @@
 #include <unistd.h>
 #include <ctype.h>
 
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+#endif
+
 #ifdef HAVE_LIBGEN_H
 # include <libgen.h>
 #endif
@@ -165,13 +169,13 @@ static char *_header_get_param(char *field_body, const char *param, size_t *len)
 	p = strchr(str, ';' );
 	while ( p ) {
 		p++;
-		while( isspace(*p) )  /* walk upto start of param */
+		while( isspace((unsigned)*p) )  /* walk upto start of param */
 			p++;
 		if ( ( v = strchr(p, '=' ) ) == NULL )
 			break;
 		*len = 0;
 		v = e = v + 1;
-		while ( *e && (quoted || ( !_ISSPECIAL(*e) && !isspace(*e) ) ) ) { 	/* skip pass value and calc len */
+		while ( *e && (quoted || ( !_ISSPECIAL(*e) && !isspace((unsigned)*e) ) ) ) { 	/* skip pass value and calc len */
 			if ( *e == '\"' )
 				quoted = ~quoted, was_quoted = 1;
 			else

@@ -23,13 +23,9 @@
 
 #include <stdlib.h>
 #include <errno.h>
-#ifdef HAVE_PTHREAD_H
-#  define _XOPEN_SOURCE  500
-#  include <pthread.h>
-#endif
 
-#include <filter0.h>
 #include <mailutils/property.h>
+#include <filter0.h>
 
 static int rfc822_property __P ((property_t, const char *, const char *));
 static int rfc822_init __P ((filter_t));

@@ -19,6 +19,10 @@
 # include <config.h>
 #endif
 
+#ifdef WITH_PTHREAD
+# define _REENTRANT
+#endif
+
 #include <stdlib.h>
 #include <ctype.h>
 #include <stdarg.h>
@@ -27,6 +31,10 @@
 #include <assert.h>
 #include <fnmatch.h>
 
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+#endif
+
 #ifdef HAVE_STRINGS_H
 # include <strings.h>
 #endif
@@ -1109,7 +1117,7 @@ imap_bodystructure0 (msg_imap_t msg_imap, char **ptr)
 	    no_arg = 0;
 	}
 
-      if (isdigit (**ptr))
+      if (isdigit ((unsigned)**ptr))
 	{
 	  char *start = *ptr;
 	  size_t size = strtoul (*ptr, ptr, 10);

@@ -21,6 +21,13 @@
 # include <config.h>
 #endif
 
+#ifdef WITH_PTHREAD
+# define _REENTRANT
+# ifdef HAVE_PTHREAD_H
+#  define _XOPEN_SOURCE  500
+#  include <pthread.h>
+# endif
+#endif
 #include <stdlib.h>
 #include <stdio.h>
 #include <time.h>
@@ -33,10 +40,11 @@
 #include <ctype.h>
 #include <limits.h>
 #include <errno.h>
-#ifdef HAVE_PTHREAD_H
-#  define _XOPEN_SOURCE  500
-#  include <pthread.h>
+
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
 #endif
+
 #ifdef HAVE_STRINGS_H
 # include <strings.h>
 #endif

@@ -27,6 +27,11 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <stdarg.h>
+
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+#endif
+
 #ifdef HAVE_STRINGS_H
 # include <strings.h>
 #endif

 /* GNU mailutils - a suite of utilities for electronic mail
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Library Public License as published by
@@ -25,6 +25,7 @@
 #endif
 
 #ifdef WITH_PTHREAD
+#  define _REENTRANT
 #  ifdef HAVE_PTHREAD_H
 #    include <pthread.h>
 #  endif

@@ -162,11 +162,11 @@ int parse822_is_digit(char c)
 {
     /* digit = <any ASCII decimal digit> */
 
-    return isdigit(c);
+    return isdigit((unsigned)c);
 }
 int parse822_is_ctl(char c)
 {
-    return iscntrl(c) || c == 127 /* DEL */;
+    return iscntrl((unsigned)c) || c == 127 /* DEL */;
 }
 int parse822_is_space(char c)
 {
@@ -1209,7 +1209,7 @@ int parse822_quote_local_part(char** quoted, const char* raw)
    */
 
   const char* s = 0;
- 
+
   if(!raw || !quoted || *quoted) {
     return EINVAL;
   }