config/qt4.m4

   1 dnl check a particular libname
   2 AC_DEFUN([QT4_TRY_LINK],
   3 [
   4         SAVE_LIBS="$LIBS"
   5         LIBS="$LIBS $1"
   6         AC_TRY_LINK([
   7         #include <qglobal.h>
   8         #include <qstring.h>
   9                 ],
  10         [
  11         QString s("mangle_failure");
  12         #if (QT_VERSION < 400)
  13         break_me_(\\\);
  14         #endif
  15         ],
  16         qt4_cv_libname=$1,
  17         )
  18         LIBS="$SAVE_LIBS"
  19 ])
  20
  21 dnl check we can do a compile
  22 AC_DEFUN([QT4_CHECK_COMPILE],
  23 [
  24         AC_MSG_CHECKING([for Qt 4 library name])
  25
  26         AC_CACHE_VAL(qt4_cv_libname,
  27         [
  28                 AC_LANG_CPLUSPLUS
  29                 SAVE_CXXFLAGS=$CXXFLAGS
  30                 CXXFLAGS="$CXXFLAGS $QT4_INCLUDES $QT4_LDFLAGS"
  31                 for libname in '-lQtCore -lQtGui' \
  32                                '-lQtCore4 -lQtGui4'
  33                 do
  34                         QT4_TRY_LINK($libname)
  35                         if test -n "$qt4_cv_libname"; then
  36                                 break;
  37                         fi
  38                 done
  39                 CXXFLAGS=$SAVE_CXXFLAGS
  40         ])
  41
  42         if test -z "$qt4_cv_libname"; then
  43                 AC_MSG_RESULT([failed])
  44                 if test "$FATAL" = 1 ; then
  45                         AC_MSG_ERROR([Cannot compile a simple Qt 4 executable. Check you have the right \$QT4DIR !])
  46                 fi
  47         else
  48                 AC_MSG_RESULT([$qt4_cv_libname])
  49         fi
  50 ])
  51
  52 dnl get Qt version we're using
  53 AC_DEFUN([QT4_GET_VERSION],
  54 [
  55         AC_CACHE_CHECK([Qt 4 version],lyx_cv_qt4version,
  56         [
  57                 AC_LANG_CPLUSPLUS
  58                 SAVE_CPPFLAGS=$CPPFLAGS
  59                 CPPFLAGS="$CPPFLAGS $QT4_INCLUDES"
  60
  61                 cat > conftest.$ac_ext <<EOF
  62 #line __oline__ "configure"
  63 #include "confdefs.h"
  64 #include <qglobal.h>
  65 "%%%"QT_VERSION_STR"%%%"
  66 EOF
  67                 lyx_cv_qt4version=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
  68                         grep '^"%%%"'  2>/dev/null | \
  69                         sed -e 's/"%%%"//g' -e 's/"//g'`
  70                 rm -f conftest.$ac_ext
  71                 CPPFLAGS=$SAVE_CPPFLAGS
  72         ])
  73
  74         QT4_VERSION=$lyx_cv_qt4version
  75         AC_SUBST(QT4_VERSION)
  76 ])
  77
  78 dnl start here
  79 AC_DEFUN([QT4_DO_IT_ALL],
  80 [
  81         dnl this variable is precious
  82         AC_ARG_VAR(QT4DIR, [the place where the Qt 4 files are, e.g. /usr/lib/qt4])
  83
  84         dnl Please leave this alone. I use this file in
  85         dnl oprofile.
  86         FATAL=0
  87
  88         AC_ARG_WITH(qt4-dir, [  --with-qt4-dir           where the root of Qt 4 is installed ],
  89                 [ qt4_cv_dir=`eval echo "$withval"/` ])
  90
  91         AC_ARG_WITH(qt4-includes, [  --with-qt4-includes      where the Qt 4 includes are. ],
  92                 [ qt4_cv_includes=`eval echo "$withval"` ])
  93
  94         AC_ARG_WITH(qt4-libraries, [  --with-qt4-libraries     where the Qt 4 library is installed.],
  95                 [  qt4_cv_libraries=`eval echo "$withval"` ])
  96
  97         dnl pay attention to $QT4DIR unless overridden
  98         if test -z "$qt4_cv_dir"; then
  99                 qt4_cv_dir=$QT4DIR
 100         fi
 101
 102         dnl derive inc/lib if needed
 103         if test -n "$qt4_cv_dir"; then
 104                 if test -z "$qt4_cv_includes"; then
 105                         qt4_cv_includes=$qt4_cv_dir/include
 106                 fi
 107                 if test -z "$qt4_cv_libraries"; then
 108                         qt4_cv_libraries=$qt4_cv_dir/lib
 109                 fi
 110         fi
 111
 112         dnl compute the binary dir too
 113         if test -n "$qt4_cv_dir"; then
 114                 qt4_cv_bin=$qt4_cv_dir/bin
 115         fi
 116
 117         dnl Preprocessor flags
 118         QT4_CPPFLAGS="-DQT_CLEAN_NAMESPACE -DQT_GENUINE_STR -DQT_NO_STL -DQT_NO_KEYWORDS"
 119         case ${host} in
 120         *mingw*) QT4_CPPFLAGS="-DQT_DLL $QT4_CPPFLAGS";;
 121         esac
 122         AC_SUBST(QT4_CPPFLAGS)
 123
 124         dnl Check if it possible to do a pkg-config
 125         QT4_DO_PKG_CONFIG
 126         if test "$pkg_failed" != "no" ; then
 127                 QT4_DO_MANUAL_CONFIG
 128         fi
 129         AC_PATH_PROGS(MOC4, [moc-qt4 moc],[],$qt4_cv_bin:$PATH)
 130         AC_PATH_PROGS(UIC4, [uic-qt4 uic],[],$qt4_cv_bin:$PATH)
 131 ])
 132
 133 AC_DEFUN([QT4_DO_PKG_CONFIG],
 134 [
 135         PKG_PROG_PKG_CONFIG
 136         save_PKG_CONFIG_PATH=$PKG_CONFIG_PATH
 137         if test -n "$qt4_cv_dir" ; then
 138           PKG_CONFIG_PATH=$qt4_cv_dir/lib:$PKG_CONFIG_PATH
 139           export PKG_CONFIG_PATH
 140         fi
 141         PKG_CHECK_MODULES(QT4_FRONTEND, QtCore QtGui)
 142         if test "$pkg_failed" == "no" ; then
 143                 QT4_INCLUDES=$QT4_FRONTEND_CFLAGS
 144                 dnl QT4_LDFLAGS=$QT4_FRONTEND_LIBS
 145                 QT4_LDFLAGS=`$PKG_CONFIG --libs-only-L QtCore QtGui`
 146                 AC_SUBST(QT4_INCLUDES)
 147                 AC_SUBST(QT4_LDFLAGS)
 148                 QT4_VERSION=`$PKG_CONFIG --modversion QtCore`
 149                 AC_SUBST(QT4_VERSION)
 150                 QT4_LIB=`$PKG_CONFIG --libs-only-l QtCore QtGui`
 151                 AC_SUBST(QT4_LIB)
 152         else
 153                 QT4_DO_MANUAL_CONFIG
 154         fi
 155         PKG_CONFIG_PATH=$save_PKG_CONFIG_PATH
 156 ])
 157
 158 AC_DEFUN([QT4_DO_MANUAL_CONFIG],
 159 [
 160         dnl flags for compilation
 161         QT4_INCLUDES=
 162         QT4_LDFLAGS=
 163         if test -n "$qt4_cv_includes"; then
 164                 QT4_INCLUDES="-I$qt4_cv_includes"
 165                 for i in Qt QtCore QtGui; do
 166                         QT4_INCLUDES="$QT4_INCLUDES -I$qt4_cv_includes/$i"
 167                 done
 168         fi
 169         if test -n "$qt4_cv_libraries"; then
 170                 QT4_LDFLAGS="-L$qt4_cv_libraries"
 171         fi
 172         AC_SUBST(QT4_INCLUDES)
 173         AC_SUBST(QT4_LDFLAGS)
 174
 175         QT4_CHECK_COMPILE
 176
 177         QT4_LIB=$qt4_cv_libname;
 178         AC_SUBST(QT4_LIB)
 179
 180         if test -n "$qt4_cv_libname"; then
 181                 QT4_GET_VERSION
 182         fi
 183 ])