Fix the m4 macro grub_ASM_EXT_C

ChangeLog

@@ -1,3 +1,8 @@
+1999-05-17  OKUJI Yoshinori  <okuji@kuicr.kyoto-u.ac.jp>
+
+	* acinclude.m4 (grub_ASM_EXT_C): Do not overrun the comman
+	shift. Reported by Pavel Roskin <pabel_roskin@geocities.com>.
+
 1999-05-14  OKUJI Yoshinori  <okuji@kuicr.kyoto-u.ac.jp>
 
 	* docs/Makefile.am (info_TEXINFOS): Added multiboot.texi.

acinclude.m4

@@ -25,7 +25,8 @@ if test -z "[$]1"; then
   AC_MSG_ERROR([C symbol not found])
 fi
 grub_cv_asm_ext_c="[$]1"
-while shift; do
+while test [$]# != 0; do
+  shift
   dummy=[$]1
   if test ! -z ${dummy}; then
     grub_cv_asm_ext_c="$grub_cv_asm_ext_c ## $dummy"

configure

@@ -608,7 +608,7 @@ echo "$ac_t""$INSTALL" 1>&6
 # It thinks the first close brace ends the variable substitution.
 test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
 
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
 
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'