configure: cURL 7.52.0 required

diff --git a/source/configure b/source/configure
index 3b51dcf..12f4636 100755 (executable)
--- a/source/configure
+++ b/source/configure
@@ -642,6 +642,8 @@ FOUND_FILE
 FOUND_CURLCONFIG_RES_FALSE
 FOUND_CURLCONFIG_RES_TRUE
 FOUND_CURLCONFIG
+cURL_LIBS
+cURL_CFLAGS
 SFML_LIBS
 SFML_CFLAGS
 PKG_CONFIG_LIBDIR
@@ -741,7 +743,9 @@ PKG_CONFIG
 PKG_CONFIG_PATH
 PKG_CONFIG_LIBDIR
 SFML_CFLAGS
-SFML_LIBS'
+SFML_LIBS
+cURL_CFLAGS
+cURL_LIBS'
 
 
 # Initialize some variables set by options.
@@ -1382,6 +1386,8 @@ Some influential environment variables:
               path overriding pkg-config's built-in search path
   SFML_CFLAGS C compiler flags for SFML, overriding pkg-config
   SFML_LIBS   linker flags for SFML, overriding pkg-config
+  cURL_CFLAGS C compiler flags for cURL, overriding pkg-config
+  cURL_LIBS   linker flags for cURL, overriding pkg-config
 
 Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
@@ -4616,6 +4622,98 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 # curl Library
 
 
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for cURL" >&5
+$as_echo_n "checking for cURL... " >&6; }
+
+if test -n "$cURL_CFLAGS"; then
+    pkg_cv_cURL_CFLAGS="$cURL_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libcurl >= 7.52.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libcurl >= 7.52.0") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_cURL_CFLAGS=`$PKG_CONFIG --cflags "libcurl >= 7.52.0" 2>/dev/null`
+                     test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$cURL_LIBS"; then
+    pkg_cv_cURL_LIBS="$cURL_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libcurl >= 7.52.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libcurl >= 7.52.0") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_cURL_LIBS=`$PKG_CONFIG --libs "libcurl >= 7.52.0" 2>/dev/null`
+                     test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+               cURL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libcurl >= 7.52.0" 2>&1`
+        else
+               cURL_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libcurl >= 7.52.0" 2>&1`
+        fi
+       # Put the nasty error message in config.log where it belongs
+       echo "$cURL_PKG_ERRORS" >&5
+
+       as_fn_error $? "Package requirements (libcurl >= 7.52.0) were not met:
+
+$cURL_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables cURL_CFLAGS
+and cURL_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+       { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+       { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables cURL_CFLAGS
+and cURL_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+       cURL_CFLAGS=$pkg_cv_cURL_CFLAGS
+       cURL_LIBS=$pkg_cv_cURL_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -lcurl" >&5
 $as_echo_n "checking for main in -lcurl... " >&6; }
 if ${ac_cv_lib_curl_main+:} false; then :

diff --git a/source/configure.ac b/source/configure.ac
index 563d562..f35d2ed 100644 (file)
--- a/source/configure.ac
+++ b/source/configure.ac
@@ -97,6 +97,8 @@ AC_LANG_POP([C++])
 
 # curl Library
 
+PKG_CHECK_MODULES([cURL], [libcurl >= 7.52.0])
+
 AC_CHECK_LIB([curl], [main], [], [echo "The cURL library must be installed on your system.
 Please check that this library is installed properly before
 running configure again."