1 Old versions of libtool (1.5.10) used to set ECHO as a side effect. With
2 libtool 2.2.2 we need to do this manually
6 Index: libpng-1.2.16/Makefile.am
7 ===================================================================
8 --- libpng-1.2.16.orig/Makefile.am 2008-04-14 14:47:21.000000000 +0100
9 +++ libpng-1.2.16/Makefile.am 2008-04-14 14:47:47.000000000 +0100
16 libpng.vers: libpng.sym
18 $(ECHO) PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0 '{global:' > $@.new