- Make sure $host_alias is never empty

Author: foobar

acinclude.m4

@@ -29,9 +29,24 @@ AC_DEFUN([PHP_DEFINE],[
   [echo "#define ]$1[]ifelse([$2],,[ 1],[ $2])[" > ]ifelse([$3],,[include],[$3])[/php_]translit($1,A-Z,a-z)[.h]
 ])
 
+dnl PHP_CANONICAL_HOST_TARGET
+dnl
+AC_DEFUN([PHP_CANONICAL_HOST_TARGET],[
+  AC_REQUIRE([AC_CANONICAL_HOST])dnl
+  AC_REQUIRE([AC_CANONICAL_TARGET])dnl
+  dnl Make sure we do not continue if host_alias is empty.
+  if test -z "$host_alias" && test -n "$host"; then
+    host_alias=$host
+  fi
+  if test -z "$host_alias"; then
+    AC_MSG_ERROR([host_alias is not set!])
+  fi
+])
+
 dnl PHP_INIT_BUILD_SYSTEM
 dnl
 AC_DEFUN([PHP_INIT_BUILD_SYSTEM],[
+AC_REQUIRE([PHP_CANONICAL_HOST_TARGET])dnl
 test -d include || mkdir include
 > Makefile.objects
 > Makefile.fragments
@@ -273,6 +288,7 @@ int readdir_r(DIR *, struct dirent *);
 ])
 
 AC_DEFUN([PHP_SHLIB_SUFFIX_NAME],[
+  AC_REQUIRE([PHP_CANONICAL_HOST_TARGET])dnl
   PHP_SUBST(SHLIB_SUFFIX_NAME)
   SHLIB_SUFFIX_NAME=so
   case $host_alias in

configure.in

@@ -35,8 +35,7 @@ for arg in $0 "$@"; do
   CONFIGURE_COMMAND="$CONFIGURE_COMMAND '$arg'"
 done
 
-AC_CANONICAL_HOST
-AC_CANONICAL_TARGET
+PHP_CANONICAL_HOST_TARGET
 
 AC_CONFIG_HEADER(main/php_config.h)
 
@@ -208,11 +207,6 @@ PHP_C_BIGENDIAN
 dnl Platform-specific compile settings.
 dnl -------------------------------------------------------------------------
 
-dnl if host_alias is empty, ac_cv_host_alias may still have the info
-if test -z "$host_alias"; then
-    host_alias=$ac_cv_host_alias
-fi
-
 case $host_alias in
 *solaris*)
     CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS"

scripts/phpize.m4

@@ -2,8 +2,6 @@ dnl This file becomes configure.in for self-contained extensions.
 
 AC_INIT(config.m4)
 
-AC_CANONICAL_HOST
-
 PHP_INIT_BUILD_SYSTEM
 
 AC_DEFUN([PHP_WITH_PHP_CONFIG],[