Re: New configure

>>>>> "vin" == Vin Shelton <acs(a)xemacs.org&gt; writes: vin> I don't know what you had in mind. Here's the configure info vin> from today's 21.5 build: configure:22636: checking for png_read_image in -lpng configure:22666: icc -o conftest -Wall -w1 -we147 -g -O3 -Ob2 -Os -tpp6 -axK -xK -ip -I/usr/local/include -I/usr/X11R6/include -z nocombreloc -L/usr/local/lib -L/usr/X11R6/lib conftest.c -ljpeg -lz -lXpm -lXmu -lXt -lXext -lX11 -lSM -lICE -lpng 1>&5 It's not that -lz "comes before" -lpng; that part is actually irrelevant to the way autoconf works. Autoconf simply wasn't told that PNG needs zlib.

Try this patch (according to the logic for zlib, TIFF needs it too): Index: ChangeLog =================================================================== RCS file: /pack/xemacscvs/XEmacs/xemacs/ChangeLog,v retrieving revision 1.444 diff -u -U0 -r1.444 ChangeLog --- ChangeLog 14 Mar 2005 12:22:16 -0000 1.444 +++ ChangeLog 15 Mar 2005 03:14:37 -0000 ＠＠ -0,0 +1,4 ＠＠ +2005-03-15 Stephen J. Turnbull <stephen(a)xemacs.org&gt; + + * configure.ac (Autodetect PNG): PNG & TIFF need -lz in AC_CHECK_LIB. + Index: configure.ac =================================================================== RCS file: /pack/xemacscvs/XEmacs/xemacs/configure.ac,v retrieving revision 1.3 diff -u -r1.3 configure.ac --- configure.ac 14 Mar 2005 12:22:22 -0000 1.3 +++ configure.ac 15 Mar 2005 03:14:44 -0000 ＠＠ -3811,7 +3811,7 ＠＠ png_problem="" test -z "$with_png" && { AC_CHECK_FUNC(pow, ,with_png=no) } test -z "$with_png" && { AC_CHECK_HEADER(png.h, ,with_png=no) } - test -z "$with_png" && { AC_CHECK_LIB(png, png_read_image,[:],with_png=no) } + test -z "$with_png" && { AC_CHECK_LIB(png, png_read_image,[:],with_png=no,[-lz]) } if test -z "$with_png"; then AC_MSG_CHECKING(for workable png version information) xe_check_libs="-lpng -lz" ＠＠ -3847,7 +3847,7 ＠＠ dnl autodetect TIFF test -z "$with_tiff" && { AC_CHECK_HEADER(tiffio.h, ,with_tiff=no) } - test -z "$with_tiff" && { AC_CHECK_LIB(tiff, TIFFClientOpen,[:],with_tiff=no) } + test -z "$with_tiff" && { AC_CHECK_LIB(tiff, TIFFClientOpen,[:],with_tiff=no,[-lz]) } test -z "$with_tiff" && with_tiff=yes if test "$with_tiff" = "yes"; then AC_DEFINE(HAVE_TIFF)