configure.ac: Look for more headers & functions.

2004-10-04  Frank Ch. Eigler  <fche@redhat.com>

	* configure.ac: Look for more headers & functions.
	* mf-hooks2.c (getmntent, inet_ntoa, getproto*): New wrapper functions.
	* mf-runtime.h.in: Add new "#pragma redefine_extname"s for them.
	* mf-runtime.c (options): Clean up integer signedness warnings.
	(main): Add a declaration to fix a warning.
	* mf-hooks3.c (pthread_exit): Add not-reached exit() to wrapper.
	* configure, config.h.in: Regenerated.

From-SVN: r88517

8 files changed, 491 insertions, 25 deletions

diff --git a/libmudflap/ChangeLog b/libmudflap/ChangeLog
index 97ab17c..65040e5 100644
--- a/libmudflap/ChangeLog
+++ b/libmudflap/ChangeLog
@@ -1,3 +1,13 @@
+2004-10-04  Frank Ch. Eigler  <fche@redhat.com>
+
+	* configure.ac: Look for more headers & functions.
+	* mf-hooks2.c (getmntent, inet_ntoa, getproto*): New wrapper functions.
+	* mf-runtime.h.in: Add new "#pragma redefine_extname"s for them.
+	* mf-runtime.c (options): Clean up integer signedness warnings.
+	(main): Add a declaration to fix a warning.
+	* mf-hooks3.c (pthread_exit): Add not-reached exit() to wrapper.
+	* configure, config.h.in: Regenerated.
+
 2004-10-02  Frank Ch. Eigler  <fche@redhat.com>
 
 	* testsuite/libmudflap.c/pass50-frag.c, fail33-frag.c, fail34-frag.c:
diff --git a/libmudflap/config.h.in b/libmudflap/config.h.in
index 2372c22..41e6194 100644
--- a/libmudflap/config.h.in
+++ b/libmudflap/config.h.in
@@ -1,5 +1,11 @@
 /* config.h.in.  Generated from configure.ac by autoheader.  */
 
+/* Define to 1 if you have the `addmntent' function. */
+#undef HAVE_ADDMNTENT
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#undef HAVE_ARPA_INET_H
+
 /* Define to 1 if you have the `backtrace' function. */
 #undef HAVE_BACKTRACE
 
@@ -60,6 +66,18 @@
 /* Define to 1 if you have the `getlogin_r' function. */
 #undef HAVE_GETLOGIN_R
 
+/* Define to 1 if you have the `getmntent' function. */
+#undef HAVE_GETMNTENT
+
+/* Define to 1 if you have the `getprotobyname' function. */
+#undef HAVE_GETPROTOBYNAME
+
+/* Define to 1 if you have the `getprotobynumber' function. */
+#undef HAVE_GETPROTOBYNUMBER
+
+/* Define to 1 if you have the `getprotoent' function. */
+#undef HAVE_GETPROTOENT
+
 /* Define to 1 if you have the `getpwent' function. */
 #undef HAVE_GETPWENT
 
@@ -90,6 +108,9 @@
 /* Define to 1 if you have the <grp.h> header file. */
 #undef HAVE_GRP_H
 
+/* Define to 1 if you have the `inet_ntoa' function. */
+#undef HAVE_INET_NTOA
+
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
@@ -105,9 +126,15 @@
 /* Define to 1 if you have the `memrchr' function. */
 #undef HAVE_MEMRCHR
 
+/* Define to 1 if you have the <mntent.h> header file. */
+#undef HAVE_MNTENT_H
+
 /* Define to 1 if you have the <netdb.h> header file. */
 #undef HAVE_NETDB_H
 
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#undef HAVE_NETINET_IN_H
+
 /* define if you have <pthread.h> */
 #undef HAVE_PTHREAD_H
 
@@ -117,6 +144,9 @@
 /* Define to 1 if you have the `sethostname' function. */
 #undef HAVE_SETHOSTNAME
 
+/* Define to 1 if you have the `setmntent' function. */
+#undef HAVE_SETMNTENT
+
 /* Define to 1 if you have the `signal' function. */
 #undef HAVE_SIGNAL
 
diff --git a/libmudflap/configure b/libmudflap/configure
index 5672cad..6eb77bb 100755
--- a/libmudflap/configure
+++ b/libmudflap/configure
@@ -3593,8 +3593,14 @@ done
 
 
 
+
+
+
+
+
 for ac_header in stdint.h execinfo.h signal.h dlfcn.h dirent.h pwd.h grp.h \
-  netdb.h sys/ipc.h sys/sem.h sys/shm.h sys/wait.h sys/socket.h ctype.h
+  netdb.h sys/ipc.h sys/sem.h sys/shm.h sys/wait.h sys/socket.h ctype.h mntent.h \
+  sys/socket.h netinet/in.h arpa/inet.h dlfcn.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
@@ -3747,6 +3753,7 @@ done
 
 
 
+
 for ac_func in backtrace backtrace_symbols gettimeofday signal
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
@@ -3852,7 +3859,6 @@ done
 
 
 
-
 for ac_func in fopen64 fseeko64 ftello64 stat64
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
@@ -3959,7 +3965,6 @@ done
 
 
 
-
 for ac_func in strnlen memrchr strncpy memmem sethostname
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
@@ -4064,7 +4069,6 @@ done
 
 
 
-
 for ac_func in __ctype_b_loc __ctype_tolower_loc __ctype_toupper_loc
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
@@ -4174,7 +4178,6 @@ done
 
 
 
-
 for ac_func in getlogin cuserid getpwnam getpwuid getpwent getgrnam getgrgid getgrent
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
@@ -4489,6 +4492,316 @@ fi
 done
 
 
+
+
+for ac_func in getprotoent getprotobyname getprotobynumber
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+
+
+for ac_func in getmntent setmntent addmntent
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+for ac_func in inet_ntoa
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -5344,7 +5657,7 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
 case $host in
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 5347 "configure"' > conftest.$ac_ext
+  echo '#line 5660 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
diff --git a/libmudflap/configure.ac b/libmudflap/configure.ac
index 7c7b8c7..04020b2 100644
--- a/libmudflap/configure.ac
+++ b/libmudflap/configure.ac
@@ -60,22 +60,19 @@ AC_TRY_COMPILE([
 enable_shared=no])
 
 AC_CHECK_HEADERS(stdint.h execinfo.h signal.h dlfcn.h dirent.h pwd.h grp.h \
-  netdb.h sys/ipc.h sys/sem.h sys/shm.h sys/wait.h sys/socket.h ctype.h)
-AC_CHECK_FUNCS(backtrace backtrace_symbols gettimeofday signal)
+  netdb.h sys/ipc.h sys/sem.h sys/shm.h sys/wait.h sys/socket.h ctype.h mntent.h \
+  sys/socket.h netinet/in.h arpa/inet.h dlfcn.h)
 
-dnl Check for 64-bit stdio calls related to Large File Support
+AC_CHECK_FUNCS(backtrace backtrace_symbols gettimeofday signal)
 AC_CHECK_FUNCS(fopen64 fseeko64 ftello64 stat64)
-
-dnl Check for nonstandard functions
 AC_CHECK_FUNCS(strnlen memrchr strncpy memmem sethostname)
-
-dnl Check for glibc ctype functions
 AC_CHECK_FUNCS(__ctype_b_loc __ctype_tolower_loc __ctype_toupper_loc)
-
-dnl Check for pwd.h / grp.h family of functions
 AC_CHECK_FUNCS(getlogin cuserid getpwnam getpwuid getpwent getgrnam getgrgid getgrent)
 AC_CHECK_FUNCS(getlogin_r getpwnam_r getpwuid_r getgrnam_r getgrgid_r)
 AC_CHECK_FUNCS(getservent getservbyname getservbyport getaddrinfo gai_strerror)
+AC_CHECK_FUNCS(getprotoent getprotobyname getprotobynumber)
+AC_CHECK_FUNCS(getmntent setmntent addmntent)
+AC_CHECK_FUNCS(inet_ntoa)
 
 AC_TRY_COMPILE([#include <sys/types.h>
 #include <sys/ipc.h>
diff --git a/libmudflap/mf-hooks2.c b/libmudflap/mf-hooks2.c
index 640b78e..52ff3c1 100644
--- a/libmudflap/mf-hooks2.c
+++ b/libmudflap/mf-hooks2.c
@@ -63,6 +63,9 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #include <limits.h>
 #include <time.h>
 #include <ctype.h>
+#ifdef HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
 #ifdef HAVE_DIRENT_H
 #include <dirent.h>
 #endif
@@ -90,6 +93,18 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #ifdef HAVE_GRP_H
 #include <grp.h>
 #endif
+#ifdef HAVE_MNTENT_H
+#include <mntent.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
 
 #include "mf-runtime.h"
 #include "mf-impl.h"
@@ -1871,3 +1886,97 @@ WRAPPER2(const char *, gai_strerror, int errcode)
   return buf;
 }
 #endif
+
+
+#ifdef HAVE_GETMNTENT
+WRAPPER2(struct mntent *, getmntent, FILE *filep)
+{
+  struct mntent *m;
+  static struct mntent *last = NULL;
+
+  MF_VALIDATE_EXTENT (filep, sizeof (*filep), __MF_CHECK_WRITE,
+    "getmntent stream");
+#define UR(field) __mf_unregister(last->field, strlen (last->field)+1, __MF_TYPE_STATIC)
+  if (last)
+    {
+      UR (mnt_fsname);
+      UR (mnt_dir);
+      UR (mnt_type);
+      UR (mnt_opts);
+      __mf_unregister (last, sizeof (*last), __MF_TYPE_STATIC);
+    }
+#undef UR
+
+  m = getmntent (filep);
+  last = m;
+
+#define R(field) __mf_register(last->field, strlen (last->field)+1, __MF_TYPE_STATIC, "mntent " #field)
+  if (m)
+    {
+      R (mnt_fsname);
+      R (mnt_dir);
+      R (mnt_type);
+      R (mnt_opts);
+      __mf_register (last, sizeof (*last), __MF_TYPE_STATIC, "getmntent result");
+    }
+#undef R
+
+  return m;
+}
+#endif
+
+
+#ifdef HAVE_INET_NTOA
+WRAPPER2(char *, inet_ntoa, struct in_addr in)
+{
+  static char *last_buf = NULL;
+  char *buf;
+  if (last_buf)
+    __mf_unregister (last_buf, strlen (last_buf)+1, __MF_TYPE_STATIC);
+  buf = inet_ntoa (in);
+  last_buf = buf;
+  if (buf)
+    __mf_register (last_buf, strlen (last_buf)+1, __MF_TYPE_STATIC, "inet_ntoa result");
+  return buf;
+}
+#endif
+
+
+#ifdef HAVE_GETPROTOENT
+WRAPPER2(struct protoent *, getprotoent, void)
+{
+  struct protoent *buf;
+  buf = getprotoent ();
+  if (buf != NULL)
+    __mf_register (buf, sizeof(*buf), __MF_TYPE_STATIC, "getproto*() return");
+  return buf;
+}
+#endif
+
+
+#ifdef HAVE_GETPROTOBYNAME
+WRAPPER2(struct protoent *, getprotobyname, const char *name)
+{
+  struct protoent *buf;
+  MF_VALIDATE_EXTENT(name, strlen(name)+1, __MF_CHECK_READ,
+                     "getprotobyname name");
+  buf = getprotobyname (name);
+  if (buf != NULL)
+    __mf_register (buf, sizeof(*buf), __MF_TYPE_STATIC,
+                   "getproto*() return");
+  return buf;
+}
+#endif
+
+
+#ifdef HAVE_GETPROTOBYNUMBER
+WRAPPER2(struct protoent *, getprotobynumber, int port)
+{
+  struct protoent *buf;
+  buf = getprotobynumber (port);
+  if (buf != NULL)
+    __mf_register (buf, sizeof(*buf), __MF_TYPE_STATIC,
+                   "getproto*() return");
+  return buf;
+}
+#endif
diff --git a/libmudflap/mf-hooks3.c b/libmudflap/mf-hooks3.c
index b844ee5..d315b82 100644
--- a/libmudflap/mf-hooks3.c
+++ b/libmudflap/mf-hooks3.c
@@ -597,4 +597,5 @@ WRAPPER(void, pthread_exit, void *rc)
   /* __mf_state = reentrant; */
   CALL_REAL (pthread_exit, rc);
   /* NOTREACHED */
+  exit (0);  /* Satisfy noreturn attribute of pthread_exit.  */
 }
diff --git a/libmudflap/mf-runtime.c b/libmudflap/mf-runtime.c
index 312963b..a0f9f73 100644
--- a/libmudflap/mf-runtime.c
+++ b/libmudflap/mf-runtime.c
@@ -310,36 +310,36 @@ static struct option
       set_option,
       read_integer_option,
     } type;
-  int value;
-  int *target;
+  unsigned value;
+  unsigned *target;
 } 
 options [] =
   {
     {"mode-nop", 
      "mudflaps do nothing", 
-     set_option, (int)mode_nop, (int *)&__mf_opts.mudflap_mode},    
+     set_option, (unsigned)mode_nop, (unsigned *)&__mf_opts.mudflap_mode},    
     {"mode-populate", 
      "mudflaps populate object tree", 
-     set_option, (int)mode_populate, (int *)&__mf_opts.mudflap_mode},    
+     set_option, (unsigned)mode_populate, (unsigned *)&__mf_opts.mudflap_mode},    
     {"mode-check", 
      "mudflaps check for memory violations",
-     set_option, (int)mode_check, (int *)&__mf_opts.mudflap_mode},
+     set_option, (unsigned)mode_check, (unsigned *)&__mf_opts.mudflap_mode},
     {"mode-violate", 
      "mudflaps always cause violations (diagnostic)",
-     set_option, (int)mode_violate, (int *)&__mf_opts.mudflap_mode},
+     set_option, (unsigned)mode_violate, (unsigned *)&__mf_opts.mudflap_mode},
    
     {"viol-nop", 
      "violations do not change program execution",
-     set_option, (int)viol_nop, (int *)&__mf_opts.violation_mode},
+     set_option, (unsigned)viol_nop, (unsigned *)&__mf_opts.violation_mode},
     {"viol-abort", 
      "violations cause a call to abort()",
-     set_option, (int)viol_abort, (int *)&__mf_opts.violation_mode},
+     set_option, (unsigned)viol_abort, (unsigned *)&__mf_opts.violation_mode},
     {"viol-segv", 
      "violations are promoted to SIGSEGV signals",
-     set_option, (int)viol_segv, (int *)&__mf_opts.violation_mode},
+     set_option, (unsigned)viol_segv, (unsigned *)&__mf_opts.violation_mode},
     {"viol-gdb", 
      "violations fork a gdb process attached to current program",
-     set_option, (int)viol_gdb, (int *)&__mf_opts.violation_mode},
+     set_option, (unsigned)viol_gdb, (unsigned *)&__mf_opts.violation_mode},
     {"trace-calls", 
      "trace calls to mudflap runtime library",
      set_option, 1, &__mf_opts.trace_mf_calls},
@@ -728,6 +728,7 @@ __wrap_main (int argc, char* argv[])
 {
   extern char **environ;
   extern int main ();
+  extern int __real_main ();
   static int been_here = 0;
 
   if (__mf_opts.heur_std_data && ! been_here)
diff --git a/libmudflap/mf-runtime.h.in b/libmudflap/mf-runtime.h.in
index 5630b56..298ed6e 100644
--- a/libmudflap/mf-runtime.h.in
+++ b/libmudflap/mf-runtime.h.in
@@ -197,6 +197,11 @@ extern int __mf_set_options (const char *opts);
 #pragma redefine_extname getservbyname __mfwrap_getservbyname
 #pragma redefine_extname getservbyport __mfwrap_getservbyport
 #pragma redefine_extname gai_strerror __mfwrap_gai_strerror
+#pragma redefine_extname getmntent __mfwrap_getmntent
+#pragma redefine_extname inet_ntoa __mfwrap_inet_ntoa
+#pragma redefine_extname getprotoent __mfwrap_getprotoent
+#pragma redefine_extname getprotobyname __mfwrap_getprotobyname
+#pragma redefine_extname getprotobynumber __mfwrap_getprotobynumber
 
 /* Disable glibc macros.  */
 #define __NO_STRING_INLINES