43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
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From 1670ca128118be1d914fc89223e94c4cff1bbf03 Mon Sep 17 00:00:00 2001
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From: Jan Heylen <jan.heylen@nokia.com>
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Date: Wed, 25 Oct 2017 06:45:49 +0200
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Subject: [PATCH] Fix compilation without zlib
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libtelnet source code uses '#if defived(HAVE_ZLIB)' as conditional flag for
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optional compression support. But the configure(.ac) script does not play well
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with this: it will define 'HAVE_ZLIB' to either 1 (zlib present) or 0
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(zlib not present). For the C preprocessor, both cases mean 'defined'.
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As a result, compilation will fail when trying to include zlib.h, which is
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missing.
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Signed-off-by: Jan Heylen <jan.heylen@nokia.com>
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Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
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---
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configure.ac | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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Upstream-status: upstream has changed to cmake iso autotools (but not yet
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released) [1] and a pull request exists to fix several issues with that,
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including correct handling of zlib detection [2].
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[1] https://github.com/seanmiddleditch/libtelnet/commit/4860d10da44929554895c0ef83274f38de68e958
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[2] https://github.com/seanmiddleditch/libtelnet/pull/54
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diff --git a/configure.ac b/configure.ac
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index 021b48f..c4dac8b 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -33,7 +33,7 @@ AC_HEADER_STDC
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PKG_CHECK_MODULES([zlib],
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[zlib],
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[AC_DEFINE([HAVE_ZLIB], [1], [Define to 1 if you have zlib.])],
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- [AC_DEFINE([HAVE_ZLIB], [0], [Define to 1 if you have zlib.])])
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+ [AC_MSG_NOTICE([not enabling zlib support])])
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# Checks for header files.
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--
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2.7.4
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