* Makefile.am: Add dummy install-pdf target.

[pf3gnuchains/gcc-fork.git] / libgfortran / acinclude.m4

diff --git a/libgfortran/acinclude.m4 b/libgfortran/acinclude.m4
index 3af0c0e..1660b6e 100644 (file)
--- a/libgfortran/acinclude.m4
+++ b/libgfortran/acinclude.m4
@@ -1,77 +1,21 @@
-dnl Check:
-dnl * If we have gettimeofday;
-dnl * If we have struct timezone for use in calling it;
-dnl * If calling it with a timezone pointer actually works -- this is deemed
-dnl   obsolete or undefined on some systems which say you should use a null
-dnl   pointer -- and undefine HAVE_TIMEZONE if so;
-dnl * Whether it only takes one arg.
-AC_DEFUN([LIBGFOR_GETTIMEOFDAY], [
-  AC_CHECK_FUNCS(gettimeofday)
-  if test "$ac_cv_func_gettimeofday" = yes; then
-    AC_CACHE_CHECK([for struct timezone], gfor_cv_struct_timezone,
-      [AC_TRY_COMPILE([#include <sys/time.h>],
-      [struct timezone tz;],
-      gfor_cv_struct_timezone=yes, gfor_cv_struct_timezone=no)])
-    if test $gfor_cv_struct_timezone = yes; then
-      dnl It may be that we can't call gettimeofday with a non-null pointer.
-      dnl In that case we'll lie about struct timezone.
-      AC_TRY_RUN([
-#ifdef TIME_WITH_SYS_TIME
-#include <sys/time.h>
-#include <time.h>
-#else
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#else
-#include <time.h>
-#endif
-#endif
-main ()
-{
-  struct timeval time;
-  struct timezone dummy;
-  if (gettimeofday (&time, &dummy))
-    exit (1);
-  else
-    exit (0);
-}],
-        [gfor_have_struct_timezone=yes], [gfor_have_struct_timezone=no],
-        [gfor_have_struct_timezone=yes])
-      if test $gfor_have_struct_timezone = yes; then
-        AC_DEFINE(HAVE_TIMEZONE, 1, [Do we have struct timezone])
-      fi
-    fi
-    AC_REQUIRE([AC_HEADER_TIME])
-    AC_CACHE_CHECK([whether gettimeofday can accept two arguments],
-      emacs_cv_gettimeofday_two_arguments,
-      [AC_TRY_LINK([
-#ifdef TIME_WITH_SYS_TIME
-#include <sys/time.h>
-#include <time.h>
-#else
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#else
-#include <time.h>
-#endif
-#endif
-      ],
-      [
-      struct timeval time;
-#ifdef HAVE_TIMEZONE
-      struct timezone dummy;
-#define DUMMY &dummy
-#else
-#define DUMMY NULL
-#endif
-      gettimeofday (&time, DUMMY);],
-      emacs_cv_gettimeofday_two_arguments=yes,
-      emacs_cv_gettimeofday_two_arguments=no)])
-    if test $emacs_cv_gettimeofday_two_arguments = no; then
-      AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT, 1,
-        [Does gettimeofday take a single argument])
-    fi
-  fi])
+m4_include(../config/acx.m4)
+m4_include(../config/no-executables.m4)
+
+dnl Check that we have a working GNU Fortran compiler
+AC_DEFUN([LIBGFOR_WORKING_GFORTRAN], [
+AC_MSG_CHECKING([whether the GNU Fortran compiler is working])
+AC_LANG_PUSH([Fortran])
+AC_COMPILE_IFELSE([[
+      program foo
+      real, parameter :: bar = sin (12.34 / 2.5)
+      end program foo]],
+    [AC_MSG_RESULT([yes])],
+    [AC_MSG_RESULT([no])
+     AC_MSG_ERROR([GNU Fortran is not working; please report a bug in http://gcc.gnu.org/bugzilla, attaching $PWD/config.log])
+    ])
+AC_LANG_POP([Fortran])
+])
+
 
 sinclude(../libtool.m4)
 dnl The lines below arrange for aclocal not to bring an installed
@@ -138,11 +82,8 @@ AC_DEFUN([LIBGFOR_CHECK_ATTRIBUTE_ALIAS], [
   AC_CACHE_CHECK([whether the target supports symbol aliases],
                 have_attribute_alias, [
   AC_TRY_LINK([
-#define ULP    STR1(__USER_LABEL_PREFIX__)
-#define STR1(x)        STR2(x)
-#define STR2(x)        #x
 void foo(void) { }
-extern void bar(void) __attribute__((alias(ULP "foo")));],
+extern void bar(void) __attribute__((alias("foo")));],
     [bar();], have_attribute_alias=yes, have_attribute_alias=no)])
   if test $have_attribute_alias = yes; then
     AC_DEFINE(HAVE_ATTRIBUTE_ALIAS, 1,