> -----Original Message-----
> From: [email protected] [mailto:autoconf-
> [email protected]] On Behalf Of Adam Mercer
> Sent: Thursday, April 07, 2011 9:53 AM
> To: [email protected]
> Subject: Handling multiple conditions in if statements
>
> Hi
>
> In one of my macros I need to do one thing on linux platforms and another
> on others, in the macro I have the followings:
>
> if test "x$build_os" = "xlinux"; then
> # case for linux
> else
> # other platforms
> fi
>
> I recently received a bug report that this wasn't working as the users system
> had $build_os defined as 'linux-gnu', whereas on others it was just 'linux'. I
> then tried to change the if statement to:
>
> if test "x$build_os" = "xlinux" -o test "x$build_os" = "xlinux-gnu"; then
>
> but that didn't work, in fact any of the usual ways I would do an OR in shell
> script didn't work.
>
> How can I have an if statement with multiple conditions? Or is there a better
> way to accomplish this?
Try a case statement. I use the m4sh version e.g.
AS_CASE([$build_os],
[*linux*], [AS_ECHO(["case for linux"])],
[AS_ECHO(["other platforms"])])
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