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authorJohannes Schindelin <johannes.schindelin@gmx.de>2017-08-24 22:26:48 +0200
committerDaniel Stenberg <daniel@haxx.se>2017-08-28 22:56:50 +0200
commitc7170e20d0a18ec8a514b4daa53bcdbb4dcb3a05 (patch)
tree4d446243f309595c4464b20d739cec560492f8bc /configure.ac
parent3063254e32717dab0208baf14648e9685cc2cbc1 (diff)
downloadcurl-c7170e20d0a18ec8a514b4daa53bcdbb4dcb3a05.tar.gz
configure: allow setting the default SSL backend
Previously, we used as default SSL backend whatever was first in the `available_backends` array. However, some users may want to override that default without patching the source code. Now they can: with the --with-default-ssl-backend=<backend> option of the ./configure script. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Diffstat (limited to 'configure.ac')
-rwxr-xr-xconfigure.ac54
1 files changed, 54 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 5c0747653..e6c72f358 100755
--- a/configure.ac
+++ b/configure.ac
@@ -1334,6 +1334,34 @@ else
CPPFLAGS="$save_CPPFLAGS"
fi
+dnl -------------------------------------------------------------
+dnl parse --with-default-ssl-backend so it can be validated below
+dnl -------------------------------------------------------------
+
+DEFAULT_SSL_BACKEND=no
+VALID_DEFAULT_SSL_BACKEND=
+AC_ARG_WITH(default-ssl-backend,
+AC_HELP_STRING([--with-default-ssl-backend=NAME],[Use NAME as default SSL backend])
+AC_HELP_STRING([--without-default-ssl-backend],[Use implicit default SSL backend]),
+ [DEFAULT_SSL_BACKEND=$withval])
+case "$DEFAULT_SSL_BACKEND" in
+ no)
+ dnl --without-default-ssl-backend option used
+ ;;
+ default|yes)
+ dnl --with-default-ssl-backend option used without name
+ AC_MSG_ERROR([The name of the default SSL backend is required.])
+ ;;
+ *)
+ dnl --with-default-ssl-backend option used with name
+ AC_SUBST(DEFAULT_SSL_BACKEND)
+ dnl needs to be validated below
+ VALID_DEFAULT_SSL_BACKEND=no
+ ;;
+esac
+
+dnl **********************************************************************
+
dnl -------------------------------------------------
dnl check winssl option before other SSL libraries
dnl -------------------------------------------------
@@ -1353,6 +1381,7 @@ if test -z "$ssl_backends" -o "x$OPT_WINSSL" != xno; then
AC_DEFINE(USE_SCHANNEL, 1, [to enable Windows native SSL/TLS support])
AC_SUBST(USE_SCHANNEL, [1])
ssl_msg="Windows-native"
+ test schannel != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
WINSSL_ENABLED=1
# --with-winssl implies --enable-sspi
AC_DEFINE(USE_WINDOWS_SSPI, 1, [to enable SSPI support])
@@ -1381,6 +1410,7 @@ if test -z "$ssl_backends" -o "x$OPT_DARWINSSL" != xno; then
AC_DEFINE(USE_DARWINSSL, 1, [to enable Apple OS native SSL/TLS support])
AC_SUBST(USE_DARWINSSL, [1])
ssl_msg="$ssh_backends, Apple OS-native"
+ test darwinssl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
DARWINSSL_ENABLED=1
LDFLAGS="$LDFLAGS -framework CoreFoundation -framework Security"
else
@@ -1589,6 +1619,7 @@ if test -z "$ssl_backends" -o "x$OPT_SSL" != xno &&
AC_CHECK_HEADERS(openssl/x509.h openssl/rsa.h openssl/crypto.h \
openssl/pem.h openssl/ssl.h openssl/err.h,
ssl_msg="OpenSSL"
+ test openssl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
OPENSSL_ENABLED=1
AC_DEFINE(USE_OPENSSL, 1, [if OpenSSL is in use]))
@@ -1827,6 +1858,7 @@ if test -z "$ssl_backends" -o "x$OPT_GNUTLS" != xno; then
GNUTLS_ENABLED=1
USE_GNUTLS="yes"
ssl_msg="GnuTLS"
+ test gnutls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
],
[
LIBS="$CLEANLIBS"
@@ -1932,6 +1964,7 @@ if test -z "$ssl_backends" -o "x$OPT_POLARSSL" != xno; then
POLARSSL_ENABLED=1
USE_POLARSSL="yes"
ssl_msg="PolarSSL"
+ test polarssl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
])
fi
@@ -1958,6 +1991,7 @@ if test -z "$ssl_backends" -o "x$OPT_POLARSSL" != xno; then
POLARSSL_ENABLED=1
USE_POLARSSL="yes"
ssl_msg="PolarSSL"
+ test polarssl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
],
[
CPPFLAGS=$_cppflags
@@ -2021,6 +2055,7 @@ if test -z "$ssl_backends" -o "x$OPT_MBEDTLS" != xno; then
MBEDTLS_ENABLED=1
USE_MBEDTLS="yes"
ssl_msg="mbedTLS"
+ test mbedtls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
], [], -lmbedx509 -lmbedcrypto)
fi
@@ -2047,6 +2082,7 @@ if test -z "$ssl_backends" -o "x$OPT_MBEDTLS" != xno; then
MBEDTLS_ENABLED=1
USE_MBEDTLS="yes"
ssl_msg="mbedTLS"
+ test mbedtls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
],
[
CPPFLAGS=$_cppflags
@@ -2115,6 +2151,7 @@ if test -z "$ssl_backends" -o "x$OPT_CYASSL" != xno; then
CYASSL_ENABLED=1
USE_CYASSL="yes"
ssl_msg="CyaSSL"
+ test cyassl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
])
fi
@@ -2141,6 +2178,7 @@ if test -z "$ssl_backends" -o "x$OPT_CYASSL" != xno; then
CYASSL_ENABLED=1
USE_CYASSL="yes"
ssl_msg="CyaSSL"
+ test cyassl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
],
[
CPPFLAGS=$_cppflags
@@ -2186,6 +2224,7 @@ if test -z "$ssl_backends" -o "x$OPT_CYASSL" != xno; then
CYASSL_ENABLED=1
USE_CYASSL="yes"
ssl_msg="WolfSSL"
+ test cyassl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
],
[
AC_MSG_RESULT(no)
@@ -2331,6 +2370,7 @@ if test -z "$ssl_backends" -o "x$OPT_NSS" != xno; then
USE_NSS="yes"
NSS_ENABLED=1
ssl_msg="NSS"
+ test nss != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
],
[
LDFLAGS="$CLEANLDFLAGS"
@@ -2405,6 +2445,7 @@ if test -z "$ssl_backends" -o "x$OPT_AXTLS" != xno; then
AXTLS_ENABLED=1
USE_AXTLS="yes"
ssl_msg="axTLS"
+ test axtls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
if test "x$cross_compiling" != "xyes"; then
LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$LIB_AXTLS"
@@ -2444,6 +2485,19 @@ if test -n "$ssl_backends"; then
curl_ssl_msg="enabled ($ssl_backends)"
fi
+if test no = "$VALID_DEFAULT_SSL_BACKEND"
+then
+ if test -n "$SSL_ENABLED"
+ then
+ AC_MSG_ERROR([Default SSL backend $DEFAULT_SSL_BACKEND not enabled!])
+ else
+ AC_MSG_ERROR([Default SSL backend requires SSL!])
+ fi
+elif test yes = "$VALID_DEFAULT_SSL_BACKEND"
+then
+ AC_DEFINE_UNQUOTED([CURL_DEFAULT_SSL_BACKEND], ["$DEFAULT_SSL_BACKEND"], [Default SSL backend])
+fi
+
dnl **********************************************************************
dnl Check for the CA bundle
dnl **********************************************************************