diff --git a/libqt5-qtbase.changes b/libqt5-qtbase.changes
index 38da641..efd68b9 100644
--- a/libqt5-qtbase.changes
+++ b/libqt5-qtbase.changes
@@ -1,3 +1,20 @@
+-------------------------------------------------------------------
+Fri Mar  9 15:15:25 UTC 2018 - crrodriguez@opensuse.org
+
+- Further review of build dependencies:
+  * pcre-devel is not required, only pcre2-devel, Remove
+    from buildrequires
+  * add explicit buildrequires on pkgconfig(libdrm) and 
+    pkgconfig(pango)
+  * sources do not use libtiff-devel at all, remove from
+    buildrequires
+
+-------------------------------------------------------------------
+Thu Mar  8 17:09:23 UTC 2018 - crrodriguez@opensuse.org
+
+- Replace xorg-x11-devel for a long list of individual
+  pkgconfig() buildrequires
+
 -------------------------------------------------------------------
 Thu Mar  1 12:14:13 UTC 2018 - alarrosa@suse.com
 
diff --git a/libqt5-qtbase.spec b/libqt5-qtbase.spec
index d47965b..af3f08f 100644
--- a/libqt5-qtbase.spec
+++ b/libqt5-qtbase.spec
@@ -111,9 +111,7 @@ BuildRequires:  libmysqlclient-devel
 BuildRequires:  libpng-devel
 BuildRequires:  libproxy-devel
 BuildRequires:  lksctp-tools-devel
-BuildRequires:  libtiff-devel
 BuildRequires:  openssl-devel
-BuildRequires:  pcre-devel
 BuildRequires:  pcre2-devel
 BuildRequires:  pkgconfig
 BuildRequires:  pkgconfig(mtdev)
@@ -140,11 +138,27 @@ BuildRequires:  tslib-devel
 %if %{vulkan}
 BuildRequires:  vulkan-devel
 %endif
-BuildRequires:  xcb-util-image-devel
-BuildRequires:  xcb-util-keysyms-devel
-BuildRequires:  xcb-util-renderutil-devel
-BuildRequires:  xcb-util-wm-devel
-BuildRequires:  xorg-x11-devel
+
+BuildRequires:  pkgconfig(pango)
+BuildRequires:  pkgconfig(libdrm)
+BuildRequires:  pkgconfig(xcb-randr)
+BuildRequires:  pkgconfig(xcb-renderutil)
+BuildRequires:  pkgconfig(xcb-render)
+BuildRequires:  pkgconfig(xcb-shape)
+BuildRequires:  pkgconfig(xcb-shm)
+BuildRequires:  pkgconfig(xcb-sync)
+BuildRequires:  pkgconfig(xcb-xfixes)
+BuildRequires:  pkgconfig(xcb-xinerama)
+BuildRequires:  pkgconfig(xcb-xkb)
+BuildRequires:  pkgconfig(xcb)
+BuildRequires:  pkgconfig(xcb-glx)
+BuildRequires:  pkgconfig(xcb-image)
+BuildRequires:  pkgconfig(xcb-icccm)
+BuildRequires:  pkgconfig(xcb-keysyms)
+BuildRequires:  pkgconfig(x11)
+BuildRequires:  pkgconfig(xrender)
+BuildRequires:  pkgconfig(xi)
+BuildRequires:  pkgconfig(x11-xcb)
 BuildRequires:  xz
 BuildRequires:  pkgconfig(glib-2.0)
 BuildRequires:  pkgconfig(gtk+-3.0)
@@ -155,6 +169,7 @@ BuildRequires:  pkgconfig(libudev)
 BuildRequires:  pkgconfig(sm)
 BuildRequires:  pkgconfig(xkbcommon) >= 0.4.1
 BuildRequires:  pkgconfig(xkbcommon-x11) >= 0.4.1
+BuildRequires:  pkgconfig(zlib)
 %if %journald
 BuildRequires:  pkgconfig(libsystemd)
 %endif