Use C++ to check for C++ header.

[lilypond.git] / configure.in

diff --git a/configure.in b/configure.in
index 1948109ea3a6b3bcdf8b9a73f47939f641bdd4be..5da07aee6ef179602fc9d7e2e5d311702edd22af 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -48,9 +48,11 @@ STEPMAKE_MAKEINFO(REQUIRED)
 STEPMAKE_PYTHON_DEVEL(REQUIRED)
 
 
-AC_CHECK_HEADERS([assert.h sys/stat.h sstream])
+AC_CHECK_HEADERS([assert.h sys/stat.h])
+AC_LANG_PUSH(C++)
+AC_CHECK_HEADERS([sstream])
+AC_LANG_POP(C++)
 AC_HEADER_STAT
-
 AC_FUNC_MEMCMP
 AC_FUNC_VPRINTF
 AC_CHECK_FUNCS([gettext isinf memmem snprintf vsnprintf gettext])