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-rw-r--r--Build/source/texk/web2c/configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/configure.ac b/Build/source/texk/web2c/configure.ac
index 1bab985a477..3573b51de8d 100644
--- a/Build/source/texk/web2c/configure.ac
+++ b/Build/source/texk/web2c/configure.ac
@@ -130,6 +130,7 @@ if test "x$kpse_cv_have_win32" = xno; then
[no], [WEB2C_DISABLE([luatex], [no nanosleep()])],
[lua_socketlibs="$lua_socketlibs $ac_cv_search_nanosleep"])
fi
+AM_CONDITIONAL([USE_DLOPEN], [test "x$ac_cv_header_dlfcn_h" = xyes])
AC_SUBST([lua_socketlibs])
AC_SUBST([ipc_socketlibs])