ntfs-3g can be built only with gcc on Solaris

configure.ac

@@ -168,11 +168,19 @@ freebsd*)
 	AC_MSG_ERROR([Please see FreeBSD support at http://www.freshports.org/sysutils/fusefs-ntfs])
 	;;
 *)
-	AC_MSG_ERROR([ntfs-3g can be built only under Linux, FreeBSD, Mac OS X, and NetBSD.])
+	AC_MSG_ERROR([ntfs-3g can be built for Linux, FreeBSD, Mac OS X, NetBSD, and Solaris only.])
 	;;
 esac
 AC_MSG_RESULT([${with_fuse}])
 
+case "${target_os}" in
+solaris*)
+	if test "x$GCC" != "xyes" ; then
+		AC_MSG_ERROR([ntfs-3g can be built only with gcc on Solaris. Install it by 'pkg install gcc-dev' and retry.)])
+	fi
+	;;
+esac
+
 if test "${enable_ldscript}" = "yes"; then
 	AC_MSG_CHECKING([Output format])
 	OUTPUT_FORMAT="$(${CC} ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | ${SED} -n 's/^OUTPUT_FORMAT("\([[^"]]*\)",.*/\1/p')"