configure: Add some quoting required by autoconf 2.68.

aclocal.m4

@@ -62,7 +62,7 @@ dnl
 dnl Usage: WINE_TRY_ASM_LINK(asm-code,includes,function,[action-if-found,[action-if-not-found]])
 dnl
 AC_DEFUN([WINE_TRY_ASM_LINK],
-[AC_LINK_IFELSE(AC_LANG_PROGRAM([[$2]],[[asm($1); $3]]),[$4],[$5])])
+[AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]],[[asm($1); $3]])],[$4],[$5])])
 
 dnl **** Check if we can link an empty program with special CFLAGS ****
 dnl
@@ -75,7 +75,7 @@ AC_DEFUN([WINE_TRY_CFLAGS],
 AC_CACHE_CHECK([whether the compiler supports $1], ac_var,
 [ac_wine_try_cflags_saved=$CFLAGS
 CFLAGS="$CFLAGS $1"
-AC_LINK_IFELSE(AC_LANG_SOURCE([[int main(int argc, char **argv) { return 0; }]]),
+AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(int argc, char **argv) { return 0; }]])],
                [AS_VAR_SET(ac_var,yes)], [AS_VAR_SET(ac_var,no)])
 CFLAGS=$ac_wine_try_cflags_saved])
 AS_IF([test AS_VAR_GET(ac_var) = yes],
@@ -89,7 +89,7 @@ dnl
 AC_DEFUN([WINE_TRY_SHLIB_FLAGS],
 [ac_wine_try_cflags_saved=$CFLAGS
 CFLAGS="$CFLAGS $1"
-AC_LINK_IFELSE([void myfunc() {}],[$2],[$3])
+AC_LINK_IFELSE([AC_LANG_SOURCE([void myfunc() {}])],[$2],[$3])
 CFLAGS=$ac_wine_try_cflags_saved])
 
 dnl **** Check whether we need to define a symbol on the compiler command line ****

configure.ac

@@ -159,7 +159,7 @@ case $host in
       CC="$CC -m32"
       CXX="$CXX -m32"
       AC_MSG_CHECKING([whether $CC works])
-      AC_LINK_IFELSE(AC_LANG_PROGRAM(),AC_MSG_RESULT([yes]),
+      AC_LINK_IFELSE([AC_LANG_PROGRAM()],AC_MSG_RESULT([yes]),
                      [AC_MSG_RESULT([no])
                       AC_MSG_ERROR([Cannot build a 32-bit program, you need to install 32-bit development libraries.])])
       LD="${LD:-ld} -m elf_i386"
@@ -774,14 +774,14 @@ case $host_os in
     if test "x$enable_win16" = "xyes"
     then
         AC_MSG_CHECKING([whether 16-bit code can be built correctly])
-        AC_RUN_IFELSE(AC_LANG_PROGRAM([[asm(".text\n"
+        AC_RUN_IFELSE([AC_LANG_PROGRAM([[asm(".text\n"
                                             "bad:\tnop;nop\n"
                                             "good:\tnop;nop\n\t"
                                             ".globl _testfunc\n"
                                             "_testfunc:\tcallw good");
                                         extern void testfunc();]],
                                       [[unsigned short *p = (unsigned short *)testfunc;
-                                        return p[[0]] != 0xe866 || p[[1]] != 0xfffa]]),
+                                        return p[0] != 0xe866 || p[1] != 0xfffa]])],
                                       AC_MSG_RESULT(yes),
                                       [AC_MSG_RESULT(no)
                                        AC_MSG_ERROR([Xcode 3.x cannot build 16-bit code correctly. Use --disable-win16 if you don't need 16-bit support.])],
@@ -888,7 +888,7 @@ then
         ac_save_CC="$CC"
         CC="$CROSSCC"
         AC_MSG_CHECKING([whether $CROSSCC works])
-        AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
+        AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
                           [AC_MSG_RESULT([yes])
                            set x $CROSSCC
                            shift