Add libcurl and covariant return checks.

[shibboleth/cpp-xmltooling.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 1f269d9..b81dbb5 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -53,7 +53,7 @@ AC_C_CONST
 AC_TYPE_SIZE_T
 
 # Checks for library functions.
-AC_CHECK_FUNCS([strchr strdup strstr])
+AC_CHECK_FUNCS([strchr strdup strstr timegm strcasecmp])
 AC_CHECK_HEADERS([dlfcn.h])
 AC_CHECK_FUNC(dlclose, , [ AC_CHECK_LIB(dl, dlopen) ])
 
@@ -69,12 +69,80 @@ else
     CXXFLAGS="$PTHREAD_CFLAGS $CXXFLAGS"
 fi
 
+# OpenSSL settings
+AC_ARG_WITH(openssl,
+    AC_HELP_STRING([--with-openssl=PATH], [where openssl is installed]),
+    [if test x_$with_openssl != x_/usr; then
+        SSLLIBS="-L${with_openssl}/lib -lcrypto -lssl"
+        SSLFLAGS="-I${with_openssl}/include"
+    fi])
+
+if test "x$SSLLIBS" = "x" ; then
+    AC_PATH_PROG(PKG_CONFIG, pkg-config)
+    if test "x$PKG_CONFIG" != x && test "x$PKG_CONFIG" != "xno" ; then
+        if pkg-config openssl ; then
+            SSLLIBS="`$PKG_CONFIG --libs openssl`"
+            SSLFLAGS="`$PKG_CONFIG --cflags openssl`"
+        else
+            AC_MSG_ERROR([OpenSSL not supported by pkg-config, try --with-openssl instead])
+        fi
+    fi
+fi
+
+if test "x$SSLLIBS" = "x" ; then
+    SSLLIBS="-lcrypto -lssl"
+fi
+
+AC_MSG_CHECKING(for OpenSSL libraries)
+AC_MSG_RESULT($SSLLIBS)
+LIBS="$LIBS $SSLLIBS"
+AC_MSG_CHECKING(for OpenSSL cflags)
+AC_MSG_RESULT($SSLFLAGS)
+CPPFLAGS="$SSLFLAGS $CPPFLAGS"
+
+AC_CHECK_HEADER([openssl/pem.h],,
+                AC_MSG_ERROR([unable to find openssl header files]))
+AC_MSG_CHECKING(for ERR_load_CRYPTO_string)
+AC_TRY_LINK_FUNC([ERR_load_CRYPTO_strings],,
+             AC_MSG_ERROR([unable to link with openssl libraries]))
+AC_MSG_RESULT(yes)
+
+# libcurl settings
+AC_PATH_PROG(CURL_CONFIG,curl-config)
+AC_ARG_WITH(curl,
+    AC_HELP_STRING([--with-curl=PATH], [where curl-config is installed]),
+    [
+    CURL_CONFIG="${with_curl}"
+    if ! test -f "${CURL_CONFIG}" ; then
+       CURL_CONFIG="${with_curl}/bin/curl-config"
+    fi
+    ])
+if test -f "${CURL_CONFIG}" ; then
+    LDFLAGS="`${CURL_CONFIG} --libs` $LDFLAGS"
+    CPPFLAGS="`${CURL_CONFIG} --cflags` $CPPFLAGS"
+else
+    AC_MSG_ERROR([curl-config not found, may need to use --with-curl option])
+fi
+AC_CHECK_HEADER([curl/curl.h],,AC_MSG_ERROR([unable to find libcurl header files]))
+AC_CHECK_LIB([curl],[curl_global_init],,AC_MSG_ERROR([unable to link with libcurl]))
+AC_MSG_CHECKING([for CURLOPT_SSL_CTX_FUNCTION in curl.h])
+AC_EGREP_HEADER([CURLOPT_SSL_CTX_FUNCTION], [curl/curl.h],
+               [AC_MSG_RESULT(yes)],
+               [AC_MSG_ERROR([need libcurl that supports CURLOPT_SSL_CTX_FUNCTION])])
+
+
 AC_LANG(C++)
 
 # C++ requirements
 AC_CXX_REQUIRE_STL
 AC_CXX_NAMESPACES
 
+# are covariant methods allowed?
+AC_TRY_LINK(
+     [ class base { public: virtual base *GetPtr( void ) { return this; } }; ],
+     [ class derived: virtual public base { public: virtual derived *GetPtr( void ) { return this; } }; ],
+     [AC_DEFINE(HAVE_COVARIANT_RETURNS,1,[Define if C++ compiler supports covariant virtual methods.])])
+
 # log4cpp settings
 AC_PATH_PROG(LOG4CPP_CONFIG,log4cpp-config)
 AC_ARG_WITH(log4cpp,