From c9b816085272dd07ed762c5ae775a994fa77df56 Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Mon, 31 Oct 2022 11:25:18 +0100
Subject: Add --without-acpica configure option

To allow cross-builds which cannot use AC_CHECK_LIB at all.
---
 configure.ac | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 11cafa5f..0c1bf9b2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -394,11 +394,15 @@ AC_SUBST([HAVE_LIBPCIACCESS])
 AC_SUBST([libpciaccess_CFLAGS])
 AC_SUBST([libpciaccess_LIBS])
 
-AC_CHECK_LIB(acpica, acpi_init, [
-  HAVE_LIBACPICA=yes
-  libacpica_LIBS="-lacpica"
-  libacpica_CFLAGS=""],
-  [HAVE_LIBACPICA=no])
+AC_ARG_WITH([acpica],
+  [AS_HELP_STRING([--without-acpica], [disable acpica])], , [with_acpica=yes])
+
+AS_IF([test "x$with_acpica" != xno], [
+  AC_CHECK_LIB(acpica, acpi_init, [
+    HAVE_LIBACPICA=yes
+    libacpica_LIBS="-lacpica"
+    libacpica_CFLAGS=""])
+])
 AC_SUBST([HAVE_LIBACPICA])
 AC_SUBST([libacpica_CFLAGS])
 AC_SUBST([libacpica_LIBS])
-- 
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