acinclude.m4

   1 dnl Add compile warnings
   2
   3 AC_DEFUN([IDT_COMPILE_WARNINGS],[
   4    if test -f $srcdir/autogen.sh; then
   5         default_compile_warnings="error"
   6     else
   7         default_compile_warnings="no"
   8     fi
   9
  10     AC_ARG_WITH(compile-warnings,
  11                 AS_HELP_STRING([--with-compile-warnings=@<:@no/yes/error@:>@],
  12                                [Compiler warnings]),
  13                 [enable_compile_warnings="$withval"],
  14                 [enable_compile_warnings="$default_compile_warnings"])
  15
  16     warnCFLAGS=
  17     if test "x$GCC" != xyes; then
  18         enable_compile_warnings=no
  19     fi
  20
  21     warning_flags=
  22     realsave_CFLAGS="$CFLAGS"
  23
  24     case "$enable_compile_warnings" in
  25     no)
  26         warning_flags=
  27         ;;
  28     yes)
  29         warning_flags="-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations"
  30         ;;
  31     maximum|error)
  32         warning_flags="-Wall -Wunused -Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wpointer-arith"
  33         CFLAGS="$warning_flags $CFLAGS"
  34         for option in -Wno-sign-compare; do
  35                 SAVE_CFLAGS="$CFLAGS"
  36                 CFLAGS="$CFLAGS $option"
  37                 AC_MSG_CHECKING([whether gcc understands $option])
  38                 AC_TRY_COMPILE([], [],
  39                         has_option=yes,
  40                         has_option=no,)
  41                 CFLAGS="$SAVE_CFLAGS"
  42                 AC_MSG_RESULT($has_option)
  43                 if test $has_option = yes; then
  44                   warning_flags="$warning_flags $option"
  45                 fi
  46                 unset has_option
  47                 unset SAVE_CFLAGS
  48         done
  49         unset option
  50         if test "$enable_compile_warnings" = "error" ; then
  51             warning_flags="$warning_flags -Werror"
  52         fi
  53         ;;
  54     *)
  55         AC_MSG_ERROR(Unknown argument '$enable_compile_warnings' to --enable-compile-warnings)
  56         ;;
  57     esac
  58     CFLAGS="$realsave_CFLAGS"
  59     AC_MSG_CHECKING(what warning flags to pass to the C compiler)
  60     AC_MSG_RESULT($warning_flags)
  61
  62     WARN_CFLAGS="$warning_flags"
  63     AC_SUBST(WARN_CFLAGS)
  64 ])
  65
  66
  67 dnl -*- mode: autoconf -*-
  68
  69 # serial 1
  70
  71 dnl Usage:
  72 dnl   GTK_DOC_CHECK([minimum-gtk-doc-version])
  73 AC_DEFUN([GTK_DOC_CHECK],
  74 [
  75   AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first
  76   AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first
  77   dnl for overriding the documentation installation directory
  78   AC_ARG_WITH(html-dir,
  79     AC_HELP_STRING([--with-html-dir=PATH], [path to installed docs]),,
  80     [with_html_dir='${datadir}/gtk-doc/html'])
  81   HTML_DIR="$with_html_dir"
  82   AC_SUBST(HTML_DIR)
  83
  84   dnl enable/disable documentation building
  85   AC_ARG_ENABLE(gtk-doc,
  86     AC_HELP_STRING([--enable-gtk-doc],
  87                    [use gtk-doc to build documentation [default=no]]),,
  88     enable_gtk_doc=no)
  89
  90   have_gtk_doc=no
  91   if test x$enable_gtk_doc = xyes; then
  92     if test -z "$PKG_CONFIG"; then
  93       AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  94     fi
  95     if test "$PKG_CONFIG" != "no" && $PKG_CONFIG --exists gtk-doc; then
  96       have_gtk_doc=yes
  97     fi
  98
  99   dnl do we want to do a version check?
 100 ifelse([$1],[],,
 101     [gtk_doc_min_version=$1
 102     if test "$have_gtk_doc" = yes; then
 103       AC_MSG_CHECKING([gtk-doc version >= $gtk_doc_min_version])
 104       if $PKG_CONFIG --atleast-version $gtk_doc_min_version gtk-doc; then
 105         AC_MSG_RESULT(yes)
 106       else
 107         AC_MSG_RESULT(no)
 108         have_gtk_doc=no
 109       fi
 110     fi
 111 ])
 112     if test "$have_gtk_doc" != yes; then
 113       enable_gtk_doc=no
 114     fi
 115   fi
 116
 117   AM_CONDITIONAL(ENABLE_GTK_DOC, test x$enable_gtk_doc = xyes)
 118   AM_CONDITIONAL(GTK_DOC_USE_LIBTOOL, test -n "$LIBTOOL")
 119 ])