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Lines 195-246
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dnl these are technically optional |
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dnl these are technically optional |
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AC_MSG_CHECKING([for local zlib source]) |
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dnl zlib is needed for language level 3, and libpng |
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dnl zlib is needed for language level 3, and libpng |
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AC_ARG_WITH(zlib, AC_HELP_STRING([--with-zlib],[include zlib support (local, system, no) (required for PNG and language level 3])) |
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# we must define ZLIBDIR regardless because libpng.mak does a -I$(ZLIBDIR) |
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# we must define ZLIBDIR regardless because libpng.mak does a -I$(ZLIBDIR) |
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# this seems a harmless default |
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# this seems a harmless default |
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ZLIBDIR=src |
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ZLIBDIR=src |
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if test -d zlib; then |
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if test x$with_zlib != xno; then |
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AC_MSG_RESULT([yes]) |
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AC_MSG_CHECKING([for local zlib source]) |
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SHARE_ZLIB=0 |
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if test x$with_zlib != xsystem && test -d zlib; then |
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ZLIBDIR=zlib |
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AC_MSG_RESULT([local]) |
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else |
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SHARE_ZLIB=0 |
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AC_MSG_RESULT([no]) |
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ZLIBDIR=zlib |
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AC_CHECK_LIB(z, deflate, [ |
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else |
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AC_CHECK_HEADERS(zlib.h, [SHARE_ZLIB=1]) |
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AC_MSG_RESULT([system]) |
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]) |
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AC_CHECK_LIB(z, deflate, [ |
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fi |
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AC_CHECK_HEADERS(zlib.h, [SHARE_ZLIB=1]) |
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if test -z "$SHARE_ZLIB"; then |
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]) |
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AC_MSG_ERROR([I did not find a copy of zlib on your system. |
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fi |
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Please either install it, or unpack a copy of the source in a |
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if test -z "$SHARE_ZLIB"; then |
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local directory named 'zlib'. See http://www.gzip.org/zlib/ |
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AC_MSG_ERROR([I did not find a copy of zlib on your system. |
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for more information. |
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Please either install it, or unpack a copy of the source in a |
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]) |
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local directory named 'zlib'. See http://www.gzip.org/zlib/ |
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for more information. |
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]) |
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fi |
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fi |
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fi |
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AC_SUBST(SHARE_ZLIB) |
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AC_SUBST(SHARE_ZLIB) |
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AC_SUBST(ZLIBDIR) |
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AC_SUBST(ZLIBDIR) |
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dnl png for the png output device; it also requires zlib |
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dnl png for the png output device; it also requires zlib |
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LIBPNGDIR=src |
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AC_ARG_WITH(png, AC_HELP_STRING([--with-png],[include PNG support (local, system, no)])) |
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PNGDEVS='' |
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dnl set safe defaults |
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PNGDEVS_ALL='$(DD)png48.dev $(DD)png16m.dev $(DD)pnggray.dev $(DD)pngmono.dev $(DD)png256.dev $(DD)png16.dev $(DD)pngalpha.dev' |
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LIBPNGDIR=src |
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AC_MSG_CHECKING([for local png library source]) |
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PNGDEVS='' |
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if test -f libpng/pngread.c; then |
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if test x$with_png != xno; then |
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AC_MSG_RESULT([yes]) |
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PNGDEVS_ALL='$(DD)png48.dev $(DD)png16m.dev $(DD)pnggray.dev $(DD)pngmono.dev $(DD)png256.dev $(DD)png16.dev $(DD)pngalpha.dev' |
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SHARE_LIBPNG=0 |
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AC_MSG_CHECKING([for local png library source]) |
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LIBPNGDIR=libpng |
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if test x$with_png != xsystem && test -f libpng/pngread.c; then |
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PNGDEVS="$PNGDEVS_ALL" |
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AC_MSG_RESULT([local]) |
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else |
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SHARE_LIBPNG=0 |
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AC_MSG_RESULT([no]) |
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LIBPNGDIR=libpng |
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AC_CHECK_LIB(png, png_check_sig, [ |
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AC_CHECK_HEADERS(png.h, [ |
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SHARE_LIBPNG=1 |
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PNGDEVS="$PNGDEVS_ALL" |
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PNGDEVS="$PNGDEVS_ALL" |
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], [SHARE_LIBPNG=0]) |
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else |
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], [SHARE_LIBPNG=0], [-lz]) |
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AC_MSG_RESULT([system]) |
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fi |
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AC_CHECK_LIB(png, png_check_sig, [ |
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if test -z "$PNGDEVS"; then |
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AC_CHECK_HEADERS(png.h, [ |
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AC_MSG_NOTICE([disabling png output devices]) |
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SHARE_LIBPNG=1 |
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PNGDEVS="$PNGDEVS_ALL" |
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], [SHARE_LIBPNG=0]) |
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], [SHARE_LIBPNG=0], [-lz]) |
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fi |
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if test -z "$PNGDEVS"; then |
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AC_MSG_NOTICE([disabling png output devices]) |
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fi |
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fi |
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fi |
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AC_SUBST(SHARE_LIBPNG) |
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AC_SUBST(SHARE_LIBPNG) |
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AC_SUBST(LIBPNGDIR) |
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AC_SUBST(LIBPNGDIR) |
