Initial revision

[silc.git] / apps / silcer / macros / gnome-support.m4

diff --git a/apps/silcer/macros/gnome-support.m4 b/apps/silcer/macros/gnome-support.m4
new file mode 100644 (file)
index 0000000..2c1d049
--- /dev/null
+++ b/apps/silcer/macros/gnome-support.m4
@@ -0,0 +1,68 @@
+dnl GNOME_SUPPORT_CHECKS
+dnl    Check for various support functions needed by the standard
+dnl    Gnome libraries.  Sets LIBOBJS, might define some macros.
+dnl    This should only be used when building the Gnome libs; 
+dnl    Gnome clients should not need this macro.
+AC_DEFUN([GNOME_SUPPORT_CHECKS],[
+  # we need an `awk' to build `gnomesupport.h'
+  AC_REQUIRE([AC_PROG_AWK])
+
+  # this should go away soon
+  need_gnome_support=yes
+
+  save_LIBOBJS="$LIBOBJS"
+  LIBOBJS=
+
+  AC_CHECK_FUNCS(getopt_long,,LIBOBJS="$LIBOBJS getopt.o getopt1.o")
+
+  # for `scandir'
+  AC_HEADER_DIRENT
+
+  # copied from `configure.in' of `libiberty'
+  vars="program_invocation_short_name program_invocation_name sys_errlist"
+  for v in $vars; do
+    AC_MSG_CHECKING([for $v])
+    AC_CACHE_VAL(gnome_cv_var_$v,
+      [AC_TRY_LINK([int *p;], [extern int $v; p = &$v;],
+                  [eval "gnome_cv_var_$v=yes"],
+                  [eval "gnome_cv_var_$v=no"])])
+    if eval "test \"`echo '$gnome_cv_var_'$v`\" = yes"; then
+      AC_MSG_RESULT(yes)
+      n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+      AC_DEFINE_UNQUOTED($n)
+    else
+      AC_MSG_RESULT(no)
+    fi
+  done
+
+  AC_REPLACE_FUNCS(memmove mkstemp scandir strcasecmp strerror strndup strnlen)
+  AC_REPLACE_FUNCS(strtok_r strtod strtol strtoul vasprintf vsnprintf)
+
+  AC_CHECK_FUNCS(realpath,,LIBOBJS="$LIBOBJS canonicalize.o")
+
+  # to include `error.c' error.c has some HAVE_* checks
+  AC_CHECK_FUNCS(vprintf doprnt strerror_r)
+  AM_FUNC_ERROR_AT_LINE
+
+  # This is required if we declare setreuid () and setregid ().
+  AC_TYPE_UID_T
+
+  # see if we need to declare some functions.  Solaris is notorious for
+  # putting functions into the `libc' but not listing them in the headers
+  AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h dirent.h)
+  GCC_NEED_DECLARATIONS(gethostname setreuid setregid getpagesize)
+  GCC_NEED_DECLARATION(scandir,[
+#ifdef HAVE_DIRENT_H
+#include <dirent.h>
+#endif
+])
+
+  # Turn our LIBOBJS into libtool objects.  This is gross, but it
+  # requires changes to autoconf before it goes away.
+  LTLIBOBJS=`echo "$LIBOBJS" | sed 's/\.o/.lo/g'`
+  AC_SUBST(need_gnome_support)
+  AC_SUBST(LTLIBOBJS)
+
+  LIBOBJS="$save_LIBOBJS"
+  AM_CONDITIONAL(BUILD_GNOME_SUPPORT, test "$need_gnome_support" = yes)
+])