We do this by adding -DGSEAL_ENABLE to the Cflags in the .pc files,
so you can get out of it by adding -UGSEAL_ENABLE after the pkg-config
generated flags.
<programlisting>
make CFLAGS+="-DGSEAL_ENABLE"
</programlisting>
+ Starting with 2.90.4, GTK+'s .pc files turn on GSEAL_ENABLE by default.
</para>
</section>
Version: @VERSION@
Requires: gdk-pixbuf-@GTK_API_VERSION@ @GDK_PACKAGES@
Libs: -L${libdir} -lgdk-${target}-@GTK_API_VERSION@ @GDK_EXTRA_LIBS@
-Cflags: -I${includedir}/gtk-@GTK_API_VERSION@ -I${libdir}/gtk-@GTK_API_VERSION@/include @GDK_EXTRA_CFLAGS@
+Cflags: -I${includedir}/gtk-@GTK_API_VERSION@ -I${libdir}/gtk-@GTK_API_VERSION@/include @GDK_EXTRA_CFLAGS@ -DGSEAL_ENABLE
Version: @VERSION@
Requires: gdk-${target}-@GTK_API_VERSION@ @GTK_PACKAGES@
Libs: -L${libdir} -lgtk-${target}-@GTK_API_VERSION@ @GTK_EXTRA_LIBS@
-Cflags: -I${includedir}/gtk-@GTK_API_VERSION@ @GTK_EXTRA_CFLAGS@
+Cflags: -I${includedir}/gtk-@GTK_API_VERSION@ @GTK_EXTRA_CFLAGS@ -DGSEAL_ENABLE