/[svn]/ircd-hybrid/trunk/m4/ax_arg_openssl.m4
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Contents of /ircd-hybrid/trunk/m4/ax_arg_openssl.m4

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Revision 4365 - (show annotations)
Sat Aug 2 22:41:12 2014 UTC (8 years, 6 months ago) by michael
File size: 3004 byte(s)
- ax_arg_openssl.m4: cosmetical fixes for LibreSSL

1 AC_DEFUN([AX_ARG_OPENSSL], [
2 AC_ARG_ENABLE(openssl,
3 [ --enable-openssl[=DIR] Enable LibreSSL/OpenSSL support (DIR optional).
4 --disable-openssl Disable LibreSSL/OpenSSL support. ],
5 [ cf_enable_openssl=$enableval ],
6 [ cf_enable_openssl="auto" ])
7 AC_MSG_CHECKING([for LibreSSL/OpenSSL])
8 if test "$cf_enable_openssl" != "no"; then
9 cf_openssl_basedir=""
10 if test "$cf_enable_openssl" != "auto" &&
11 test "$cf_enable_openssl" != "yes"; then
12 dnl Support for --enable-openssl=/some/place
13 cf_openssl_basedir="${cf_enable_openssl}"
14 else
15 dnl Do the auto-probe here. Check some common directory paths.
16 for dirs in /usr/local/ssl /usr/pkg /usr/local /usr/lib /usr/lib/ssl\
17 /opt /opt/openssl /usr/local/openssl; do
18 if test -f "${dirs}/include/openssl/opensslv.h"; then
19 cf_openssl_basedir="${dirs}"
20 break
21 fi
22 done
23 unset dirs
24 fi
25
26 dnl Now check cf_openssl_found to see if we found anything.
27 if test ! -z "$cf_openssl_basedir"; then
28 if test -f "${cf_openssl_basedir}/include/openssl/opensslv.h"; then
29 CPPFLAGS="-I${cf_openssl_basedir}/include $CPPFLAGS"
30 LDFLAGS="-L${cf_openssl_basedir}/lib $LDFLAGS"
31 else
32 dnl OpenSSL wasn't found in the directory specified. Naughty
33 dnl administrator...
34 cf_openssl_basedir=""
35 fi
36 else
37 dnl Check for stock FreeBSD 4.x and 5.x systems, since their files
38 dnl are in /usr/include and /usr/lib. In this case, we don't want to
39 dnl change INCLUDES or LIBS, but still want to enable OpenSSL.
40 dnl We can't do this check above, because some people want two versions
41 dnl of OpenSSL installed (stock FreeBSD 4.x/5.x and /usr/local/ssl)
42 dnl and they want /usr/local/ssl to have preference.
43 if test -f "/usr/include/openssl/opensslv.h"; then
44 cf_openssl_basedir="/usr"
45 fi
46 fi
47
48 dnl If we have a basedir defined, then everything is okay. Otherwise,
49 dnl we have a problem.
50 if test ! -z "$cf_openssl_basedir"; then
51 AC_MSG_RESULT([$cf_openssl_basedir])
52 cf_enable_openssl="yes"
53 else
54 AC_MSG_RESULT([not found. Please check your path.])
55 cf_enable_openssl="no"
56 fi
57 unset cf_openssl_basedir
58 else
59 dnl If --disable-openssl was specified
60 AC_MSG_RESULT([disabled])
61 fi
62
63 AS_IF([test "$cf_enable_openssl" != "no"],
64 [AC_MSG_CHECKING(for LibreSSL or OpenSSL 0.9.8o and above)
65 AC_RUN_IFELSE([
66 AC_LANG_PROGRAM([
67 #include <openssl/opensslv.h>
68 #include <stdlib.h>],
69 [[ exit(!(OPENSSL_VERSION_NUMBER >= 0x009080ffL)); ]])],
70 [cf_openssl_version_ok=yes],
71 [cf_openssl_version_ok=no],
72 [cf_openssl_version_ok=no])
73
74 AS_IF([test "$cf_openssl_version_ok" = "yes"],
75 [AC_MSG_RESULT(found)
76
77 AC_CHECK_LIB(crypto, RSA_free)
78 AS_IF([test "$ac_cv_lib_crypto_RSA_free" = "yes"],
79 [AC_CHECK_LIB(ssl, SSL_connect)])
80 ],[AC_MSG_RESULT(no - LibreSSL/OpenSSL support disabled)
81 cf_enable_openssl="no"])])
82
83 AM_CONDITIONAL(ENABLE_SSL, [test "$ac_cv_lib_ssl_SSL_connect" = yes])
84 ])

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