/bin/sh ../../../libtool --silent --mode=link gcc  -pipe -fno-strict-aliasing -f
no-common -fexceptions -g -O3  -L/usr/local/lib -pipe -fno-strict-aliasing -fno-
common -fexceptions -g -O3 -o pngtest.exe  pngtest-pngtest.o libpng.la  -lm
./.libs/libpng.a(libpng_la-pngread.o): In function `png_read_destroy':
/home/IriX64/source/brlcad/src/other/libpng/pngread.c:1270: undefined reference
to `_inflateEnd'
./.libs/libpng.a(libpng_la-pngread.o): In function `png_read_row':
/home/IriX64/source/brlcad/src/other/libpng/pngread.c:721: undefined reference t
o `_inflate'
./.libs/libpng.a(libpng_la-pngread.o): In function `png_read_init_3':
/home/IriX64/source/brlcad/src/other/libpng/pngread.c:296: undefined reference t
o `_inflateInit_'
./.libs/libpng.a(libpng_la-pngread.o): In function `png_create_read_struct_2':
/home/IriX64/source/brlcad/src/other/libpng/pngread.c:144: undefined reference t
o `_inflateInit_'
./.libs/libpng.a(libpng_la-pngwrite.o): In function `png_write_destroy':
/home/IriX64/source/brlcad/src/other/libpng/pngwrite.c:1075: undefined reference
 to `_deflateEnd'
./.libs/libpng.a(libpng_la-pngwrite.o): In function `png_write_flush':
/home/IriX64/source/brlcad/src/other/libpng/pngwrite.c:962: undefined reference
to `_deflate'
./.libs/libpng.a(libpng_la-png.o): In function `png_calculate_crc':
/home/IriX64/source/brlcad/src/other/libpng/png.c:234: undefined reference to `_
crc32'
./.libs/libpng.a(libpng_la-png.o): In function `png_reset_crc':
/home/IriX64/source/brlcad/src/other/libpng/png.c:208: undefined reference to `_
crc32'
./.libs/libpng.a(libpng_la-png.o): In function `png_reset_zstream':
/home/IriX64/source/brlcad/src/other/libpng/png.c:769: undefined reference to `_
inflateReset'
./.libs/libpng.a(libpng_la-pngrutil.o): In function `png_decompress_chunk':
/home/IriX64/source/brlcad/src/other/libpng/pngrutil.c:201: undefined reference
to `_inflate'
/home/IriX64/source/brlcad/src/other/libpng/pngrutil.c:312: undefined reference
to `_inflateReset'
/home/IriX64/source/brlcad/src/other/libpng/pngrutil.c:208: undefined reference
to `_inflateReset'
./.libs/libpng.a(libpng_la-pngrutil.o): In function `png_read_finish_row':
/home/IriX64/source/brlcad/src/other/libpng/pngrutil.c:2903: undefined reference
 to `_inflate'
/home/IriX64/source/brlcad/src/other/libpng/pngrutil.c:2932: undefined reference
 to `_inflateReset'
./.libs/libpng.a(libpng_la-pngwutil.o): In function `png_text_compress':
/home/IriX64/source/brlcad/src/other/libpng/pngwutil.c:217: undefined reference
to `_deflate'
/home/IriX64/source/brlcad/src/other/libpng/pngwutil.c:272: undefined reference
to `_deflate'
./.libs/libpng.a(libpng_la-pngwutil.o): In function `png_write_compressed_data_o
ut':
/home/IriX64/source/brlcad/src/other/libpng/pngwutil.c:366: undefined reference
to `_deflateReset'
./.libs/libpng.a(libpng_la-pngwutil.o): In function `png_write_finish_row':
/home/IriX64/source/brlcad/src/other/libpng/pngwutil.c:1895: undefined reference
 to `_deflate'
/home/IriX64/source/brlcad/src/other/libpng/pngwutil.c:1923: undefined reference
 to `_deflateReset'
./.libs/libpng.a(libpng_la-pngwutil.o): In function `png_write_filtered_row':
/home/IriX64/source/brlcad/src/other/libpng/pngwutil.c:2733: undefined reference
 to `_deflate'
./.libs/libpng.a(libpng_la-pngwutil.o): In function `png_write_IHDR':
/home/IriX64/source/brlcad/src/other/libpng/pngwutil.c:526: undefined reference
to `_deflateInit2_'
collect2: ld returned 1 exit status
make[3]: *** [pngtest.exe] Error 1
make[3]: Leaving directory `/home/IriX64/source/brlcad/src/other/libpng'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/IriX64/source/brlcad/src/other'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/IriX64/source/brlcad/src'
make: *** [all-recursive] Error 1

IriX64@FthrNtr ~/source/brlcad
$