config/qt.m4

   1 dnl find a binary in the path
   2 AC_DEFUN([QT_FIND_PATH],
   3 [
   4         AC_MSG_CHECKING([for $1])
   5         AC_CACHE_VAL(qt_cv_path_$1,
   6         [
   7                 qt_cv_path_$1="NONE"
   8                 if test -n "$$2"; then
   9                         qt_cv_path_$1="$$2";
  10                 else
  11                         dirs="$3"
  12                         qt_save_IFS=$IFS
  13                         IFS=':'
  14                         for dir in $PATH; do
  15                                 dirs="$dirs $dir"
  16                         done
  17                         IFS=$qt_save_IFS
  18
  19                         for dir in $dirs; do
  20                                 if test -x "$dir/$1"; then
  21                                         if test -n "$5"; then
  22                                                 evalstr="$dir/$1 $5 2>&1 "
  23                                                 if eval $evalstr; then
  24                                                         qt_cv_path_$1="$dir/$1"
  25                                                         break
  26                                                 fi
  27                                         else
  28                                                 qt_cv_path_$1="$dir/$1"
  29                                                 break
  30                                         fi
  31                                 fi
  32                         done
  33                 fi
  34         ])
  35
  36         if test -z "$qt_cv_path_$1" || test "$qt_cv_path_$1" = "NONE"; then
  37                 AC_MSG_RESULT(not found)
  38                 $4
  39         else
  40                 AC_MSG_RESULT($qt_cv_path_$1)
  41                 $2=$qt_cv_path_$1
  42         fi
  43 ])
  44
  45 dnl Find the uic compiler on the path or in qt_cv_dir
  46 AC_DEFUN([QT_FIND_UIC],
  47 [
  48         QT_FIND_PATH(uic, ac_uic, $qt_cv_dir/bin)
  49         if test -z "$ac_uic" -a "$FATAL" = 1; then
  50                 AC_MSG_ERROR([uic binary not found in \$PATH or $qt_cv_dir/bin !])
  51         fi
  52 ])
  53
  54 dnl Find the right moc in path/qt_cv_dir
  55 AC_DEFUN([QT_FIND_MOC],
  56 [
  57         QT_FIND_PATH(moc2, ac_moc2, $qt_cv_dir/bin)
  58         QT_FIND_PATH(moc, ac_moc1, $qt_cv_dir/bin)
  59
  60         if test -n "$ac_moc1" -a -n "$ac_moc2"; then
  61                 dnl found both. Prefer Qt3's if it exists else moc2
  62                 $ac_moc1 -v 2>&1 | grep "Qt 3" >/dev/null
  63                 if test "$?" = 0; then
  64                         ac_moc=$ac_moc1;
  65                 else
  66                         ac_moc=$ac_moc2;
  67                 fi
  68         else
  69                 if test -n "$ac_moc1"; then
  70                         ac_moc=$ac_moc1;
  71                 else
  72                         ac_moc=$ac_moc2;
  73                 fi
  74         fi
  75
  76         if test -z "$ac_moc"  -a "$FATAL" = 1; then
  77                 AC_MSG_ERROR([moc binary not found in \$PATH or $qt_cv_dir/bin !])
  78         fi
  79 ])
  80
  81 dnl check a particular libname
  82 AC_DEFUN([QT_TRY_LINK],
  83 [
  84         SAVE_LIBS="$LIBS"
  85         LIBS="$LIBS $1"
  86         AC_TRY_LINK([
  87         #include <qglobal.h>
  88         #include <qstring.h>
  89                 ],
  90         [
  91         QString s("mangle_failure");
  92         #if (QT_VERSION < 221)
  93         break_me_(\\\);
  94         #endif
  95         ],
  96         qt_cv_libname=$1,
  97         )
  98         LIBS="$SAVE_LIBS"
  99 ])
 100
 101 dnl check we can do a compile
 102 AC_DEFUN([QT_CHECK_COMPILE],
 103 [
 104         AC_MSG_CHECKING([for Qt library name])
 105
 106         AC_CACHE_VAL(qt_cv_libname,
 107         [
 108                 AC_LANG_CPLUSPLUS
 109                 SAVE_CXXFLAGS=$CXXFLAGS
 110                 CXXFLAGS="$CXXFLAGS $QT_INCLUDES $QT_LDFLAGS"
 111
 112                 for libname in -lqt-mt -lqt-mt3 -lqt3 -lqt2 -lqt;
 113                 do
 114                         QT_TRY_LINK($libname)
 115                         if test -n "$qt_cv_libname"; then
 116                                 break;
 117                         fi
 118                 done
 119
 120                 CXXFLAGS=$SAVE_CXXFLAGS
 121         ])
 122
 123         if test -z "$qt_cv_libname"; then
 124                 AC_MSG_RESULT([failed])
 125                 if test "$FATAL" = 1 ; then
 126                         AC_MSG_ERROR([Cannot compile a simple Qt executable. Check you have the right \$QTDIR !])
 127                 fi
 128         else
 129                 AC_MSG_RESULT([$qt_cv_libname])
 130         fi
 131 ])
 132
 133 dnl get Qt version we're using
 134 AC_DEFUN([QT_GET_VERSION],
 135 [
 136         AC_CACHE_CHECK([Qt version],lyx_cv_qtversion,
 137         [
 138                 AC_LANG_CPLUSPLUS
 139                 SAVE_CPPFLAGS=$CPPFLAGS
 140                 CPPFLAGS="$CPPFLAGS $QT_INCLUDES"
 141
 142                 cat > conftest.$ac_ext <<EOF
 143 #line __oline__ "configure"
 144 #include "confdefs.h"
 145 #include <qglobal.h>
 146 "%%%"QT_VERSION_STR"%%%"
 147 EOF
 148                 lyx_cv_qtversion=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
 149                         grep '^"%%%"'  2>/dev/null | \
 150                         sed -e 's/"%%%"//g' -e 's/"//g'`
 151                 rm -f conftest.$ac_ext
 152                 CPPFLAGS=$SAVE_CPPFLAGS
 153         ])
 154
 155         QT_VERSION=$lyx_cv_qtversion
 156         AC_SUBST(QT_VERSION)
 157 ])
 158
 159 dnl Ascertain whether the Qt libraries are multi-threaded or not
 160 AC_DEFUN([QT_CHECK_IS_MULTITHREADED],
 161 [
 162         AC_CACHE_CHECK([whether the Qt library is multi-threaded],
 163                        qt_cv_is_multithreaded,
 164         [
 165                 AC_LANG_CPLUSPLUS
 166                 SAVE_CXXFLAGS=$CXXFLAGS
 167                 SAVE_LIBS="$LIBS"
 168                 CXXFLAGS="$CXXFLAGS $QT_INCLUDES $QT_LDFLAGS"
 169                 LIBS="$LIBS $QT_LIB"
 170
 171                 AC_TRY_LINK(
 172                 [
 173 #define QT_THREAD_SUPPORT
 174 #include <qapplication.h>
 175                 ],
 176                 [
 177         QApplication a(0,0);
 178         a.unlock();
 179                 ],
 180                 qt_cv_is_multithreaded=yes,
 181                 qt_cv_is_multithreaded=no
 182                 )
 183
 184                 LIBS="$SAVE_LIBS"
 185                 CXXFLAGS=$SAVE_CXXFLAGS
 186         ])
 187
 188         if test x"$qt_cv_is_multithreaded" = xyes; then
 189                 QT_CPPFLAGS="$QT_CPPFLAGS -DQT_THREAD_SUPPORT"
 190         fi
 191 ])
 192
 193 dnl start here
 194 AC_DEFUN([QT_DO_IT_ALL],
 195 [
 196         dnl this variable is precious
 197         AC_ARG_VAR(QTDIR, [the place where the Qt files are, e.g. /usr/lib/qt])
 198
 199         dnl Please leave this alone. I use this file in
 200         dnl oprofile.
 201         FATAL=0
 202
 203         AC_ARG_WITH(qt-dir, [  --with-qt-dir           where the root of Qt is installed ],
 204                 [ qt_cv_dir=`eval echo "$withval"/` ])
 205
 206         AC_ARG_WITH(qt-includes, [  --with-qt-includes      where the Qt includes are. ],
 207                 [ qt_cv_includes=`eval echo "$withval"` ])
 208
 209         AC_ARG_WITH(qt-libraries, [  --with-qt-libraries     where the Qt library is installed.],
 210                 [  qt_cv_libraries=`eval echo "$withval"` ])
 211
 212         dnl pay attention to $QTDIR unless overridden
 213         if test -z "$qt_cv_dir"; then
 214                 qt_cv_dir=$QTDIR
 215         fi
 216
 217         dnl derive inc/lib if needed
 218         if test -n "$qt_cv_dir"; then
 219                 if test -z "$qt_cv_includes"; then
 220                         qt_cv_includes=$qt_cv_dir/include
 221                 fi
 222                 if test -z "$qt_cv_libraries"; then
 223                         qt_cv_libraries=$qt_cv_dir/lib
 224                 fi
 225         fi
 226
 227         dnl flags for compilation
 228         QT_INCLUDES=
 229         QT_LDFLAGS=
 230         if test -n "$qt_cv_includes"; then
 231                 QT_INCLUDES="-I$qt_cv_includes"
 232         fi
 233         if test -n "$qt_cv_libraries"; then
 234                 QT_LDFLAGS="-L$qt_cv_libraries"
 235         fi
 236         AC_SUBST(QT_INCLUDES)
 237         AC_SUBST(QT_LDFLAGS)
 238
 239         dnl Preprocessor flags
 240         case ${host} in
 241         *mingw*) QT_CPPFLAGS="-DQT_DLL -DQT_CLEAN_NAMESPACE -DQT_GENUINE_STR";;
 242               *) QT_CPPFLAGS="-DQT_CLEAN_NAMESPACE -DQT_GENUINE_STR";;
 243         esac
 244         AC_SUBST(QT_CPPFLAGS)
 245
 246         if test -z "$MOC"; then
 247                 QT_FIND_MOC
 248                 MOC=$ac_moc
 249         fi
 250         AC_SUBST(MOC)
 251         if test -z "$UIC"; then
 252                 QT_FIND_UIC
 253                 UIC=$ac_uic
 254         fi
 255         AC_SUBST(UIC)
 256
 257         QT_CHECK_COMPILE
 258
 259         QT_LIB=$qt_cv_libname;
 260         AC_SUBST(QT_LIB)
 261
 262         QT_CHECK_IS_MULTITHREADED
 263
 264         if test -n "$qt_cv_libname"; then
 265                 QT_GET_VERSION
 266         fi
 267 ])