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Fixed the --with-zlib configure option so that it always adds the specified

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path to the compiler flags.  Before, a zlib installation in the default
path was always used in preference to the one in the desired location.
This commit is contained in:
Dan Fandrich 2005-03-08 03:24:49 +00:00
parent dc59795629
commit 18d87edd6d
1 changed files with 57 additions and 50 deletions
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107
configure.ac
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@ -941,71 +941,78 @@ dnl Check for & handle argument to --with-zlib.
_cppflags=$CPPFLAGS
_ldflags=$LDFLAGS
OPT_ZLIB="/usr/local"
AC_ARG_WITH(zlib,
AC_HELP_STRING([--with-zlib=PATH],[search for zlib in PATH])
AC_HELP_STRING([--without-zlib],[disable use of zlib]),
[OPT_ZLIB="$withval"])
case "$OPT_ZLIB" in
no)
AC_MSG_WARN([zlib disabled]) ;;
*)
if test "$OPT_ZLIB" = "no" ; then
AC_MSG_WARN([zlib disabled])
else
if test "$OPT_ZLIB" = "yes" ; then
OPT_ZLIB=""
fi
if test -z "$OPT_ZLIB" ; then
dnl check for the lib first without setting any new path, since many
dnl people have it in the default path
AC_CHECK_LIB(z, inflateEnd,
dnl libz found, set the variable
[HAVE_LIBZ="1"],
dnl if no lib found, try to add the given library
[if test -d "$OPT_ZLIB"; then
CPPFLAGS="$CPPFLAGS -I$OPT_ZLIB/include"
LDFLAGS="$LDFLAGS -L$OPT_ZLIB/lib$libsuff"
fi])
dnl if no lib found, try /usr/local
[OPT_ZLIB="/usr/local"])
AC_CHECK_HEADER(zlib.h,
[
dnl zlib.h was found
HAVE_ZLIB_H="1"
dnl if the lib wasn't found already, try again with the new paths
if test "$HAVE_LIBZ" != "1"; then
AC_CHECK_LIB(z, gzread,
[
dnl the lib was found!
HAVE_LIBZ="1"
],
[ CPPFLAGS=$_cppflags
LDFLAGS=$_ldflags])
fi
],
[
dnl zlib.h was not found, restore the flags
CPPFLAGS=$_cppflags
LDFLAGS=$_ldflags]
)
fi
if test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" != "1"
then
AC_MSG_WARN([configure found only the libz lib, not the header file!])
elif test "$HAVE_LIBZ" != "1" && test "$HAVE_ZLIB_H" = "1"
then
AC_MSG_WARN([configure found only the libz header file, not the lib!])
elif test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" = "1"
then
dnl both header and lib were found!
AC_SUBST(HAVE_LIBZ)
AC_DEFINE(HAVE_ZLIB_H, 1, [if you have the zlib.h header file])
AC_DEFINE(HAVE_LIBZ, 1, [if zlib is available])
dnl Add a nonempty path to the compiler flags
if test -n "$OPT_ZLIB"; then
CPPFLAGS="$CPPFLAGS -I$OPT_ZLIB/include"
LDFLAGS="$LDFLAGS -L$OPT_ZLIB/lib$libsuff"
fi
LIBS="$LIBS -lz"
dnl replace 'HAVE_LIBZ' in the automake makefile.ams
AMFIXLIB="1"
AC_MSG_NOTICE([found both libz and libz.h header])
curl_zlib_msg="enabled"
AC_CHECK_HEADER(zlib.h,
[
dnl zlib.h was found
HAVE_ZLIB_H="1"
dnl if the lib wasn't found already, try again with the new paths
if test "$HAVE_LIBZ" != "1"; then
AC_CHECK_LIB(z, gzread,
[
dnl the lib was found!
HAVE_LIBZ="1"
],
[ CPPFLAGS=$_cppflags
LDFLAGS=$_ldflags])
fi
;;
esac
],
[
dnl zlib.h was not found, restore the flags
CPPFLAGS=$_cppflags
LDFLAGS=$_ldflags]
)
if test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" != "1"
then
AC_MSG_WARN([configure found only the libz lib, not the header file!])
elif test "$HAVE_LIBZ" != "1" && test "$HAVE_ZLIB_H" = "1"
then
AC_MSG_WARN([configure found only the libz header file, not the lib!])
elif test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" = "1"
then
dnl both header and lib were found!
AC_SUBST(HAVE_LIBZ)
AC_DEFINE(HAVE_ZLIB_H, 1, [if you have the zlib.h header file])
AC_DEFINE(HAVE_LIBZ, 1, [if zlib is available])
LIBS="$LIBS -lz"
dnl replace 'HAVE_LIBZ' in the automake makefile.ams
AMFIXLIB="1"
AC_MSG_NOTICE([found both libz and libz.h header])
curl_zlib_msg="enabled"
fi
fi
dnl set variable for use in automakefile(s)
AM_CONDITIONAL(HAVE_LIBZ, test x"$AMFIXLIB" = x1)