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|
dnl Define zlib paths to point at bundled zlib
AC_DEFUN([MYSQL_USE_BUNDLED_ZLIB], [
ZLIB_INCLUDES="-I\$(top_srcdir)/zlib"
ZLIB_LIBS="\$(top_builddir)/zlib/libz.la"
dnl Omit -L$pkglibdir as it's always in the list of mysql_config deps.
ZLIB_DEPS="-lz"
zlib_dir="zlib"
AC_SUBST([zlib_dir])
mysql_cv_compress="yes"
])
dnl Auxiliary macro to check for zlib at given path
AC_DEFUN([MYSQL_CHECK_ZLIB_DIR], [
save_INCLUDES="$INCLUDES"
save_LIBS="$LIBS"
INCLUDES="$INCLUDES $ZLIB_INCLUDES"
LIBS="$LIBS $ZLIB_LIBS"
AC_CACHE_VAL([mysql_cv_compress],
[AC_TRY_LINK([#include <zlib.h>],
[return compress(0, (unsigned long*) 0, "", 0);],
[mysql_cv_compress="yes"
AC_MSG_RESULT([ok])],
[mysql_cv_compress="no"])
])
INCLUDES="$save_INCLUDES"
LIBS="$save_LIBS"
])
dnl MYSQL_CHECK_ZLIB_WITH_COMPRESS
dnl ------------------------------------------------------------------------
dnl @synopsis MYSQL_CHECK_ZLIB_WITH_COMPRESS
dnl
dnl Provides the following configure options:
dnl --with-zlib-dir=DIR
dnl Possible DIR values are:
dnl - "no" - the macro will disable use of compression functions
dnl - "bundled" - means use zlib bundled along with MySQL sources
dnl - empty, or not specified - the macro will try default system
dnl library (if present), and in case of error will fall back to
dnl bundled zlib
dnl - zlib location prefix - given location prefix, the macro expects
dnl to find the library headers in $prefix/include, and binaries in
dnl $prefix/lib. If zlib headers or binaries weren't found at $prefix, the
dnl macro bails out with error.
dnl
dnl If the library was found, this function #defines HAVE_COMPRESS
dnl and configure variables ZLIB_INCLUDES (i.e. -I/path/to/zlib/include),
dnl ZLIB_LIBS (i. e. -L/path/to/zlib/lib -lz) and ZLIB_DEPS which is
dnl used in mysql_config and is always the same as ZLIB_LIBS except to
dnl when we use the bundled zlib. In the latter case ZLIB_LIBS points to the
dnl build dir ($top_builddir/zlib), while mysql_config must point to the
dnl installation dir ($pkglibdir), so ZLIB_DEPS is set to point to
dnl $pkglibdir.
AC_DEFUN([MYSQL_CHECK_ZLIB_WITH_COMPRESS], [
AC_MSG_CHECKING([for zlib compression library])
case $SYSTEM_TYPE in
*netware* | *modesto*)
AC_MSG_RESULT(ok)
AC_DEFINE([HAVE_COMPRESS], [1], [Define to enable compression support])
;;
*)
AC_ARG_WITH([zlib-dir],
AC_HELP_STRING([--with-zlib-dir=DIR],
[Provide MySQL with a custom location of
compression library. Given DIR, zlib binary is
assumed to be in $DIR/lib and header files
in $DIR/include.]),
[mysql_zlib_dir=${withval}],
[mysql_zlib_dir=""])
case "$mysql_zlib_dir" in
"no")
mysql_cv_compress="no"
AC_MSG_RESULT([disabled])
;;
"bundled")
MYSQL_USE_BUNDLED_ZLIB
AC_MSG_RESULT([using bundled zlib])
;;
"")
ZLIB_INCLUDES=""
ZLIB_LIBS="-lz"
MYSQL_CHECK_ZLIB_DIR
if test "$mysql_cv_compress" = "no"; then
MYSQL_USE_BUNDLED_ZLIB
AC_MSG_RESULT([system-wide zlib not found, using one bundled with MySQL])
fi
;;
*)
if test -f "$mysql_zlib_dir/lib/libz.a" -a \
-f "$mysql_zlib_dir/include/zlib.h"; then
ZLIB_INCLUDES="-I$mysql_zlib_dir/include"
ZLIB_LIBS="-L$mysql_zlib_dir/lib -lz"
MYSQL_CHECK_ZLIB_DIR
fi
if test "x$mysql_cv_compress" != "xyes"; then
AC_MSG_ERROR([headers or binaries were not found in $mysql_zlib_dir/{include,lib}])
fi
;;
esac
if test "$mysql_cv_compress" = "yes"; then
if test "x$ZLIB_DEPS" = "x"; then
ZLIB_DEPS="$ZLIB_LIBS"
fi
AC_SUBST([ZLIB_LIBS])
AC_SUBST([ZLIB_DEPS])
AC_SUBST([ZLIB_INCLUDES])
AC_DEFINE([HAVE_COMPRESS], [1], [Define to enable compression support])
fi
;;
esac
])
dnl ------------------------------------------------------------------------
|
