poppler: cleanup

- move sedits to PRE_BUILD
- look for qt4 when sourcing qt4
- devoke_installwatch before second default_build

libs/poppler/BUILD

@@ -1,6 +1,4 @@
 
-  sedit "s:priv->quality, true: priv->quality, TRUE:" goo/JpegWriter.cc &&
-
   OPTS+=" --disable-static --disable-gtk-test --enable-xpdf-headers --enable-poppler-glib" &&
 
   if in_depends poppler qt5; then
@@ -11,14 +9,11 @@
     . /etc/profile.d/qt4.rc
   fi &&
 
-  if [ "`get_module_config DOCS`" = "n" ] ; then
-    sedit "s/SUBDIRS = . reference demo/SUBDIRS = . demo/g" glib/Makefile.in
-  fi  &&
-
   default_build &&
 
-# If in depends we will now build qt5 libs
+  # If in depends we will now build qt5 libs
   if in_depends poppler qt5; then
+    devoke_installwatch &&
     . /etc/profile.d/qt5.rc &&
     OPTS+=" --enable-poppler-qt5" &&
     default_build

libs/poppler/PRE_BUILD

@@ -0,0 +1,7 @@
+default_pre_build &&
+
+sedit "s:priv->quality, true: priv->quality, TRUE:" goo/JpegWriter.cc &&
+
+if [ "`get_module_config DOCS`" = "n" ] ; then
+  sedit "s/SUBDIRS = . reference demo/SUBDIRS = . demo/g" glib/Makefile.in
+fi