1 files changed, 16 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index 4fbc532..5a97403 100644
--- a/configure.ac
+++ b/configure.ac
@@ -131,8 +131,23 @@ AC_CHECK_FUNCS([strdup],         [], [AC_MSG_ERROR([missing required functions])
 AC_CHECK_FUNCS([strerror],       [], [AC_MSG_ERROR([missing required functions])])
 
 # check for headers
+AC_CHECK_HEADERS([assert.h],    [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([ctype.h],     [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([errno.h],     [], [AC_MSG_ERROR([missing required headers])])
 AC_CHECK_HEADERS([fcntl.h],     [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([features.h],  [], [])
+AC_CHECK_HEADERS([inttypes.h],  [], [AC_MSG_ERROR([missing required headers])])
 AC_CHECK_HEADERS([limits.h],    [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([stdarg.h],    [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([stdint.h],    [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([stdio.h],     [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([stdlib.h],    [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([string.h],    [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([sys/cdefs.h], [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([sys/types.h], [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([sys/stat.h],  [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([time.h],      [], [AC_MSG_ERROR([missing required headers])])
+AC_CHECK_HEADERS([unistd.h],    [], [AC_MSG_ERROR([missing required headers])])
 
 # GNU Libtool Support
 LT_INIT(dlopen disable-fast-install win32-dll)
@@ -168,7 +183,7 @@ AC_MSG_NOTICE([   Features:])
 AC_MSG_NOTICE([      zlib support:              $USE_ZLIB])
 AC_MSG_NOTICE([      bzip2 support:             $USE_BZIP2])
 AC_MSG_NOTICE([      lzma support:              $USE_LZMA])
-AC_MSG_NOTICE([      Z support:                 $USE_Z])
+AC_MSG_NOTICE([      lzw support:               yes])
 AC_MSG_NOTICE([ ])
 AC_MSG_NOTICE([   Please send suggestions to:   $PACKAGE_BUGREPORT])
 AC_MSG_NOTICE([ ])