Dropping those will be an unnecessary pain.
$(srcdir)/ChangeLog \
`find "$(srcdir)" -type f -name Makefile.in -print`
+
+## Copy .pc files to target-specific names
+gtk+-x11-3.0.pc gtk+-win32-3.0.pc gtk+-quartz-3.0.pc: gtk+-3.0.pc
+ rm -f $@ && \
+ cp gtk+-3.0.pc $@
+
+gtk+-*-3.0-uninstalled.pc: gtk+-3.0-uninstalled.pc
+ rm -f $@ && \
+ cp gtk+-3.0-uninstalled.pc $@
+
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = gtk+-3.0.pc gail-3.0.pc
+pkgconfig_DATA += $(patsubst %,gtk+-%-3.0.pc,@gdktarget@)
+
if OS_UNIX
pkgconfig_DATA += gtk+-unix-print-3.0.pc
endif