blob: 4e6ff500019ad0dc2e7c62a705d46ba1f6b1278d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
AC_DEFUN([CHECK_ZLIB],[
AC_ARG_WITH(zlib,AS_HELP_STRING([--with-zlib=DIR],[specify zlib's root installation folder]),
[ZLIB_HOME="$with_zlib"])
if test -n "${ZLIB_HOME}" -a "${ZLIB_HOME}" != "yes" -a "${ZLIB_HOME}" != "no" ; then
ZLIB_CPPFLAGS="-I${ZLIB_HOME}/include"
ZLIB_LDFLAGS="-L${ZLIB_HOME}/lib"
fi
ZLIB_OLD_LDFLAGS=$LDFLAGS
ZLIB_OLD_CPPFLAGS=$CPPFLAGS
LDFLAGS="$LDFLAGS $ZLIB_LDFLAGS"
CPPFLAGS="$CPPFLAGS $ZLIB_CPPFLAGS"
AC_LANG_PUSH(C)
AC_CHECK_HEADER(zlib.h, [zlib_cv_zlib_h=yes], [zlib_cv_zlib_h=no])
AC_CHECK_LIB(z, inflateEnd, [zlib_cv_libz=yes], [zlib_cv_libz=no])
AC_LANG_POP(C)
LDFLAGS=$ZLIB_OLD_LDFLAGS
CPPFLAGS=$ZLIB_OLD_CPPFLAGS
if test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"
then
HAVE_ZLIB=yes
AC_SUBST([ZLIB_CPPFLAGS])
AC_SUBST([ZLIB_LDFLAGS])
else
AC_MSG_FAILURE([cannot locate zlib.h and -lz, specify a valid zlib installation using --with-zlib=DIR])
fi
])
|
