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| author | Nathanael Nerode <neroden@gcc.gnu.org> | 2004-03-11 05:15:36 +0000 |
|---|---|---|
| committer | Nathanael Nerode <neroden@gcc.gnu.org> | 2004-03-11 05:15:36 +0000 |
| commit | e9b3be9b64fcbf3d10496e885fcb4f96e145133b (patch) | |
| tree | 635fed5c25e46e437e22f707a7dfb1a8b296d1e5 /config/acx.m4 | |
| parent | 7aae1918dd824735e1687453a6bad69cc0d8ff2b (diff) | |
| download | binutils-redhat-e9b3be9b64fcbf3d10496e885fcb4f96e145133b.tar.gz | |
(top level)
2004-03-11 Nathanael Nerode <neroden@gcc.gnu.org>
* configure: Regenerate.
2004-03-08 Paolo Bonzini <bonzini@gnu.org>
PR ada/14131
Move language detection to the top level.
* configure.in: Find default values for the tools as
soon as possible. Disable ada if GNAT is not found.
Emit error message about missing languages. Expand
--enable-languages=all for the gcc subdirectory.
(config)
2004-03-08 Paolo Bonzini <bonzini@gnu.org>
PR ada/14131
Move language detection to the top level.
* acx.m4 (ACX_PROG_GNAT): New macro, moved here
from the gcc subdirectory.
2004-03-09 Hans-Peter Nilsson <hp@axis.com>
* accross.m4 (AC_C_BIGENDIAN_CROSS): Compile endian probe with
"-c". Properly quote parameter for AC_MSG_ERROR.
Diffstat (limited to 'config/acx.m4')
| -rw-r--r-- | config/acx.m4 | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/config/acx.m4 b/config/acx.m4 index 96b7c8a5ca..ab7f98a216 100644 --- a/config/acx.m4 +++ b/config/acx.m4 @@ -155,3 +155,38 @@ AC_DEFUN([AC_PROG_CPP_WERROR], [AC_REQUIRE([AC_PROG_CPP])dnl m4_define([AC_CHECK_HEADER],m4_defn([_AC_CHECK_HEADER_OLD])) ac_c_preproc_warn_flag=yes])# AC_PROG_CPP_WERROR + +# Test for GNAT. +# We require the gnatbind program, and a compiler driver that +# understands Ada. We use the user's CC setting, already found. +# +# Sets the shell variable have_gnat to yes or no as appropriate, and +# substitutes GNATBIND. +AC_DEFUN([ACX_PROG_GNAT], +[AC_REQUIRE([AC_CHECK_TOOL_PREFIX]) +AC_REQUIRE([AC_PROG_CC]) +AC_CHECK_TOOL(GNATBIND, gnatbind, no) +AC_CACHE_CHECK([whether compiler driver understands Ada], + acx_cv_cc_gcc_supports_ada, +[cat >conftest.adb <<EOF +procedure conftest is begin null; end conftest; +EOF +acx_cv_cc_gcc_supports_ada=no +# There is a bug in old released versions of GCC which causes the +# driver to exit successfully when the appropriate language module +# has not been installed. This is fixed in 2.95.4, 3.0.2, and 3.1. +# Therefore we must check for the error message as well as an +# unsuccessful exit. +errors=`(${CC} -c conftest.adb) 2>&1 || echo failure` +if test x"$errors" = x; then + acx_cv_cc_gcc_supports_ada=yes + break +fi +rm -f conftest.*]) + +if test x$GNATBIND != xno && test x$acx_cv_gcc_supports_ada != xno; then + have_gnat=yes +else + have_gnat=no +fi +]) |