From bb5cc9cee1963362fe56b4fac65fed4912da4215 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Sat, 30 Jul 2016 22:30:01 +0200 Subject: [PATCH] configure: add cache variable for Linux proc filesystem check When cross-compiling, whether the /proc filesystem is available in the build environment does not give any indication as to whether it will be available in the execution environment. This commit therefore adjust the AF_LINUX_PROCFS macro to use AC_CACHE_CHECK(), so that an ac_cv_linux_procfs variable can be preseeded in the environment to force the result of this check. Signed-off-by: Thomas Petazzoni --- aclocal.m4 | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/aclocal.m4 b/aclocal.m4 index 2115204..333699c 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -80,16 +80,11 @@ dnl dnl Check for the Linux /proc filesystem dnl -------------------------------------------------------------------------- AC_DEFUN(AF_LINUX_PROCFS, -[AC_MSG_CHECKING(for Linux proc filesystem) -if test "x`cat /proc/sys/kernel/ostype 2>&-`" = "xLinux" -then - linux_procfs=yes -else - linux_procfs=no -fi -AC_MSG_RESULT($linux_procfs) -if test $linux_procfs = yes -then +[AC_CACHE_CHECK([for Linux proc filesystem], [ac_cv_linux_procfs], + [ac_cv_linux_procfs=no + test "x`cat /proc/sys/kernel/ostype 2>&-`" = "xLinux" && ac_cv_linux_procfs=yes]) + if test $ac_cv_linux_procfs = yes + then AC_DEFINE(HAVE_LINUX_PROCFS, 1, [Define if you have the Linux /proc filesystem.]) fi]) -- 2.7.4