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         AC_MSG_CHECKING([whether uic supports -nounload])
  53         if $ac_uic --help 2>&1 | grep nounload >/dev/null ; then
  54                 AC_MSG_RESULT([yes])
  55                 ac_uic="$ac_uic -nounload"
  56         else
  57                 AC_MSG_RESULT([no])
  58         fi
  59 ])
  60
  61 dnl Find the right moc in path/qt_cv_dir
  62 AC_DEFUN([QT_FIND_MOC],
  63 [
  64         QT_FIND_PATH(moc2, ac_moc2, $qt_cv_dir/bin)
  65         QT_FIND_PATH(moc, ac_moc1, $qt_cv_dir/bin)
  66
  67         if test -n "$ac_moc1" -a -n "$ac_moc2"; then
  68                 dnl found both. Prefer Qt3's if it exists else moc2
  69                 $ac_moc1 -v 2>&1 | grep "Qt 3" >/dev/null
  70                 if test "$?" = 0; then
  71                         ac_moc=$ac_moc1;
  72                 else
  73                         ac_moc=$ac_moc2;
  74                 fi
  75         else
  76                 if test -n "$ac_moc1"; then
  77                         ac_moc=$ac_moc1;
  78                 else
  79                         ac_moc=$ac_moc2;
  80                 fi
  81         fi
  82
  83         if test -z "$ac_moc"  -a "$FATAL" = 1; then
  84                 AC_MSG_ERROR([moc binary not found in \$PATH or $qt_cv_dir/bin !])
  85         fi
  86 ])
  87
  88 dnl check a particular libname
  89 AC_DEFUN([QT_TRY_LINK],
  90 [
  91         SAVE_LIBS="$LIBS"
  92         LIBS="$LIBS $1"
  93         AC_TRY_LINK([
  94         #include <qglobal.h>
  95         #include <qstring.h>
  96                 ],
  97         [
  98         QString s("mangle_failure");
  99         #if (QT_VERSION < 0x030000)
 100         break_me_(\\\);
 101         #endif
 102         ],
 103         qt_cv_libname=$1,
 104         )
 105         LIBS="$SAVE_LIBS"
 106 ])
 107
 108 dnl check we can do a compile
 109 AC_DEFUN([QT_CHECK_COMPILE],
 110 [
 111         AC_MSG_CHECKING([for Qt library name])
 112
 113         AC_CACHE_VAL(qt_cv_libname,
 114         [
 115                 AC_LANG_CPLUSPLUS
 116                 SAVE_CXXFLAGS=$CXXFLAGS
 117                 CXXFLAGS="$CXXFLAGS $QT_INCLUDES $QT_LDFLAGS"
 118
 119                 for libname in -lqt-mt -lqt;
 120                 do
 121                         QT_TRY_LINK($libname)
 122                         if test -n "$qt_cv_libname"; then
 123                                 break;
 124                         fi
 125                 done
 126
 127                 CXXFLAGS=$SAVE_CXXFLAGS
 128         ])
 129
 130         if test -z "$qt_cv_libname"; then
 131                 AC_MSG_RESULT([failed])
 132                 if test "$FATAL" = 1 ; then
 133                         AC_MSG_ERROR([Cannot compile a simple Qt executable. Check you have the right \$QTDIR !])
 134                 fi
 135         else
 136                 AC_MSG_RESULT([$qt_cv_libname])
 137         fi
 138 ])
 139
 140 dnl get Qt version we're using
 141 AC_DEFUN([QT_GET_VERSION],
 142 [
 143         AC_CACHE_CHECK([Qt version],lyx_cv_qtversion,
 144         [
 145                 AC_LANG_CPLUSPLUS
 146                 SAVE_CPPFLAGS=$CPPFLAGS
 147                 CPPFLAGS="$CPPFLAGS $QT_INCLUDES"
 148
 149                 cat > conftest.$ac_ext <<EOF
 150 #line __oline__ "configure"
 151 #include "confdefs.h"
 152 #include <qglobal.h>
 153 "%%%"QT_VERSION_STR"%%%"
 154 EOF
 155                 lyx_cv_qtversion=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
 156                         grep '^"%%%"'  2>/dev/null | \
 157                         sed -e 's/"%%%"//g' -e 's/"//g'`
 158                 rm -f conftest.$ac_ext
 159                 CPPFLAGS=$SAVE_CPPFLAGS
 160         ])
 161
 162         QT_VERSION=$lyx_cv_qtversion
 163         AC_SUBST(QT_VERSION)
 164 ])
 165
 166 dnl Ascertain whether the Qt libraries are multi-threaded or not
 167 AC_DEFUN([QT_CHECK_IS_MULTITHREADED],
 168 [
 169         AC_CACHE_CHECK([whether the Qt library is multi-threaded],
 170                        qt_cv_is_multithreaded,
 171         [
 172                 AC_LANG_CPLUSPLUS
 173                 SAVE_CXXFLAGS=$CXXFLAGS
 174                 SAVE_LIBS="$LIBS"
 175                 CXXFLAGS="$CXXFLAGS $QT_INCLUDES $QT_LDFLAGS"
 176                 LIBS="$LIBS $QT_LIB"
 177
 178                 AC_TRY_LINK(
 179                 [
 180 #define QT_THREAD_SUPPORT
 181 #include <qapplication.h>
 182                 ],
 183                 [
 184         QApplication a(0,0);
 185         a.unlock();
 186                 ],
 187                 qt_cv_is_multithreaded=yes,
 188                 qt_cv_is_multithreaded=no
 189                 )
 190
 191                 LIBS="$SAVE_LIBS"
 192                 CXXFLAGS=$SAVE_CXXFLAGS
 193         ])
 194
 195         if test x"$qt_cv_is_multithreaded" = xyes; then
 196                 QT_CPPFLAGS="$QT_CPPFLAGS -DQT_THREAD_SUPPORT"
 197         fi
 198 ])
 199
 200 dnl start here
 201 AC_DEFUN([QT_DO_IT_ALL],
 202 [
 203         dnl this variable is precious
 204         AC_ARG_VAR(QTDIR, [the place where the Qt files are, e.g. /usr/lib/qt])
 205
 206         dnl Please leave this alone. I use this file in
 207         dnl oprofile.
 208         FATAL=0
 209
 210         AC_ARG_WITH(qt-dir, [  --with-qt-dir           where the root of Qt is installed ],
 211                 [ qt_cv_dir=`eval echo "$withval"/` ])
 212
 213         AC_ARG_WITH(qt-includes, [  --with-qt-includes      where the Qt includes are. ],
 214                 [ qt_cv_includes=`eval echo "$withval"` ])
 215
 216         AC_ARG_WITH(qt-libraries, [  --with-qt-libraries     where the Qt library is installed.],
 217                 [  qt_cv_libraries=`eval echo "$withval"` ])
 218
 219         dnl pay attention to $QTDIR unless overridden
 220         if test -z "$qt_cv_dir"; then
 221                 qt_cv_dir=$QTDIR
 222         fi
 223
 224         dnl derive inc/lib if needed
 225         if test -n "$qt_cv_dir"; then
 226                 if test -z "$qt_cv_includes"; then
 227                         qt_cv_includes=$qt_cv_dir/include
 228                 fi
 229                 if test -z "$qt_cv_libraries"; then
 230                         qt_cv_libraries=$qt_cv_dir/lib
 231                 fi
 232         fi
 233
 234         dnl flags for compilation
 235         QT_INCLUDES=
 236         QT_LDFLAGS=
 237         if test -n "$qt_cv_includes"; then
 238                 QT_INCLUDES="-I$qt_cv_includes"
 239         fi
 240         if test -n "$qt_cv_libraries"; then
 241                 QT_LDFLAGS="-L$qt_cv_libraries"
 242         fi
 243         AC_SUBST(QT_INCLUDES)
 244         AC_SUBST(QT_LDFLAGS)
 245
 246         dnl Preprocessor flags
 247         QT_CPPFLAGS="-DQT_CLEAN_NAMESPACE -DQT_GENUINE_STR -DQT_NO_STL -DQT_NO_EMIT"
 248         case ${host} in
 249         *mingw*) QT_CPPFLAGS="-DQT_DLL $QT_CPPFLAGS";;
 250         esac
 251
 252         case ${host_os} in
 253         cygwin* )
 254                 if test "x$with_x" = xno ; then
 255                         QT_CPPFLAGS="$QT_CPPFLAGS -DQ_CYGWIN_WIN"
 256                 fi;;
 257         esac
 258
 259         AC_SUBST(QT_CPPFLAGS)
 260
 261         if test -z "$MOC"; then
 262                 QT_FIND_MOC
 263                 MOC=$ac_moc
 264         fi
 265         AC_SUBST(MOC)
 266         if test -z "$UIC"; then
 267                 QT_FIND_UIC
 268                 UIC=$ac_uic
 269         fi
 270         AC_SUBST(UIC)
 271
 272         QT_CHECK_COMPILE
 273
 274         QT_LIB=$qt_cv_libname;
 275         AC_SUBST(QT_LIB)
 276
 277         QT_CHECK_IS_MULTITHREADED
 278
 279         if test -n "$qt_cv_libname"; then
 280                 QT_GET_VERSION
 281         fi
 282 ])