81 lines
2.4 KiB
Plaintext
81 lines
2.4 KiB
Plaintext
AC_DEFUN([AC_PATH_ZLIB], [
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AC_ARG_WITH(zlib,
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AC_HELP_STRING([--with-zlib=DIR],
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[search for ZLIB in DIR/include and DIR/lib]),
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[for dir in `echo "$withval" | tr : ' '`; do
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if test -d $dir/include; then
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ZLIB_CFLAGS="$ZLIB_CFLAGS -I$dir/include"
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fi
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if test -d $dir/lib; then
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ZLIB_LDFLAGS="$ZLIB_LDFLAGS -L$dir/lib"
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fi
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done[]])
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AC_ARG_WITH(zlib-includes,
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AC_HELP_STRING([--with-zlib-includes=DIR],
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[search for ZLIB includes in DIR]),
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[for dir in `echo "$withval" | tr : ' '`; do
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if test -d $dir; then
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ZLIB_CFLAGS="$ZLIB_CFLAGS -I$dir"
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fi
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done[]])
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ac_zlib_saved_CFLAGS="$CFLAGS"
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ac_zlib_saved_LDFLAGS="$LDFLAGS"
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ac_zlib_saved_LIBS="$LIBS"
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CFLAGS="$CFLAGS $ZLIB_CFLAGS"
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LDFLAGS="$LDFLAGS $ZLIB_LDFLAGS"
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ac_have_zlibh=no
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ac_have_zlib=no
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touch /tmp/dummy1_zlib.h
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AC_CHECK_HEADERS([/tmp/dummy1_zlib.h], [ac_have_zlibh=yes], [ac_have_zlibh=no],
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[#include "zlib.h"])
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rm /tmp/dummy1_zlib.h
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if test $ac_have_zlibh = yes; then
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AC_SEARCH_LIBS(gzopen, [z], [ac_have_zlib=yes], [ac_have_zlib=no])
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fi
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# List of places to try
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testdirs="$HOME/opt/zlib $OBITINSTALL/other"
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for dir in $testdirs; do
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if test $ac_have_zlib = no; then
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if test -f $dir/include/zlib.h; then
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ZLIB_CFLAGS="-I$dir/include"
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CPPFLAGS="$ac_zlib_saved_CPPFLAGS $ZLIB_CFLAGS"
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ZLIB_LDFLAGS="-L$dir/lib"
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LDFLAGS="$ac_zlib_saved_LDFLAGS $ZLIB_LDFLAGS"
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touch /tmp/dummy3_zlib.h
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AC_CHECK_HEADERS([/tmp/dummy3_zlib.h], [ac_have_zlibh=yes], [ac_have_zlibh=no],
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[#include "zlib.h"])
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rm /tmp/dummy3_zlib.h
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if test $ac_have_zlibh = yes; then
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# Force check
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ac_cv_search_gzopen=" "
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AC_SEARCH_LIBS(gzopen, [z], [ac_have_zlib=yes], [ac_have_zlib=no])
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fi
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if test $ac_have_zlib = yes ; then
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if test $ac_have_zlibh = yes ; then
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break;
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fi
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fi
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fi
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fi
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done[]
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if test $ac_have_zlib = no; then
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AC_MSG_WARN([cannot find ZLIB library])
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fi
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if test $ac_have_zlibh = no; then
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AC_MSG_WARN([cannot find ZLIB headers])
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ac_have_zlib=no
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fi
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if test $ac_have_zlib = yes; then
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AC_DEFINE(HAVE_ZLIB, 1, [Define to 1 if ZLIB is available.])
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fi
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ZLIB_LIBS="$LIBS"
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CFLAGS="$ac_zlib_saved_CFLAGS"
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LDFLAGS="$ac_zlib_saved_LDFLAGS"
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LIBS="$ac_zlib_saved_LIBS"
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AC_SUBST(ZLIB_CFLAGS)
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AC_SUBST(ZLIB_LDFLAGS)
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AC_SUBST(ZLIB_LIBS)
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])
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