Re: Solaris -R check fails

[Pavel Roskin]

Hello, Akim!

> | ChangeLog:
> |         * acgeneral.m4 (_AC_LINK_IFELSE): Always create the test source.
> |         Default to AC_LANG_PROGRAM() if the first argument is empty.
> | 
> 
> This is not good.  The convention for AC_..._IFELSE is that if you
> didn't pass a program to compile, you have created it, and you want
> the macros to use it.  Then it's also your responsibility to remove it
> (no longer AC_..._IFELSE's).

Then the authors of AC_PATH_XTRA ignored our convention :-)

My understanding is that the AC_PATH_XTRA just makes sure that the linker
understands the "-R" option, so it's not needed to supply a program really
using the X libraries. AC_LANG_PROGRAM() should be sufficient.

ChangeLog:
        * acspecific.m4 (AC_PATH_XTRA): Use AC_LANG_PROGRAM() as the
        argument to AC_LINK_IFELSE.

Regards,
Pavel Roskin

_________________________________
Index: acspecific.m4
--- acspecific.m4       Wed Oct 25 14:17:41 2000
+++ acspecific.m4       Mon Oct 30 11:57:26 2000
@@ -1390,13 +1390,13 @@
     "SunOS 5"*)
       AC_MSG_CHECKING(whether -R must be followed by a space)
       ac_xsave_LIBS=$LIBS; LIBS="$LIBS -R$x_libraries"
-      AC_LINK_IFELSE([], ac_R_nospace=yes, ac_R_nospace=no)
+      AC_LINK_IFELSE([AC_LANG_PROGRAM()], ac_R_nospace=yes, ac_R_nospace=no)
       if test $ac_R_nospace = yes; then
        AC_MSG_RESULT(no)
        X_LIBS="$X_LIBS -R$x_libraries"
       else
        LIBS="$ac_xsave_LIBS -R $x_libraries"
-       AC_LINK_IFELSE([], ac_R_space=yes, ac_R_space=no)
+       AC_LINK_IFELSE([AC_LANG_PROGRAM()], ac_R_space=yes, ac_R_space=no)
        if test $ac_R_space = yes; then
          AC_MSG_RESULT(yes)
          X_LIBS="$X_LIBS -R $x_libraries"
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