From: Richard Henderson <richard.henderson@linaro.org>
To: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org
Subject: Re: [PATCH 05/26] configure, meson: convert pam detection to meson
Date: Wed, 9 Jun 2021 09:47:09 -0700 [thread overview]
Message-ID: <54a2f6fd-64af-77f9-7e70-bbb335bdfdb9@linaro.org> (raw)
In-Reply-To: <YMDkOv/bkV5cWLp2@redhat.com>
On 6/9/21 8:57 AM, Daniel P. Berrangé wrote:
> On Wed, Jun 09, 2021 at 08:46:22AM -0700, Richard Henderson wrote:
>> If not have_system, there's no point in looking for pam *at all* regardless
>> of get_option().
>
> In theory we can simplify to
>
> if have_system
> pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
> required: get_option('auth_pam'),
> ...)
>
> and this will be fine for builds with system emulators. The only
> caveat is that if someone disables system emulators while also
> passing -Dpam=enabled, we won't check for pam. That is a
> nonsense combination of course, so probably doesn't matter
...
> feature==disabled does not map to required: false
>
> https://mesonbuild.com/Build-options.html#features
>
> [quote]
> enabled is the same as passing required : true.
> auto is the same as passing required : false.
> disabled do not look for the dependency and always return 'not-found'.
> [/quote]
Ah, thanks. Documentation is all over the place with meson. Anyway, I would
very much prefer the "if have_system" test above.
r~
next prev parent reply other threads:[~2021-06-09 16:48 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-08 11:22 [PATCH 00/22] Convert more checks to Meson Paolo Bonzini
2021-06-08 11:22 ` [PATCH 01/26] meson: drop unused CONFIG_GCRYPT_HMAC Paolo Bonzini
2021-06-08 17:37 ` Richard Henderson
2021-06-15 13:53 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 02/26] configure: drop unused variables for xts Paolo Bonzini
2021-06-08 12:15 ` Philippe Mathieu-Daudé
2021-06-08 17:38 ` Richard Henderson
2021-06-15 13:55 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 03/26] configure, meson: convert crypto detection to meson Paolo Bonzini
2021-06-08 19:16 ` Richard Henderson
2021-06-15 14:01 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 04/26] configure, meson: convert libtasn1 " Paolo Bonzini
2021-06-08 19:32 ` Richard Henderson
2021-06-15 14:04 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 05/26] configure, meson: convert pam " Paolo Bonzini
2021-06-08 19:45 ` Richard Henderson
2021-06-08 19:47 ` Richard Henderson
2021-06-08 20:20 ` Daniel P. Berrangé
2021-06-09 15:46 ` Richard Henderson
2021-06-09 15:57 ` Daniel P. Berrangé
2021-06-09 16:47 ` Richard Henderson [this message]
2021-06-15 13:58 ` Paolo Bonzini
2021-06-15 14:05 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 06/26] configure, meson: convert libusb " Paolo Bonzini
2021-06-15 14:06 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 07/26] configure, meson: convert libcacard " Paolo Bonzini
2021-06-15 14:08 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 08/26] configure, meson: convert libusbredir " Paolo Bonzini
2021-06-15 14:09 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 09/26] configure, meson: convert vte " Paolo Bonzini
2021-06-15 14:24 ` Daniel P. Berrangé
2021-06-15 15:12 ` Paolo Bonzini
2021-06-08 11:22 ` [PATCH 10/26] configure, meson: convert virgl " Paolo Bonzini
2021-06-15 14:25 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 11/26] configure, meson: convert libdaxctl " Paolo Bonzini
2021-06-15 14:37 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 12/26] configure, meson: convert libpmem " Paolo Bonzini
2021-06-15 14:37 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 13/26] configure, meson: convert liburing " Paolo Bonzini
2021-06-15 14:38 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 14/26] configure, meson: convert libxml2 " Paolo Bonzini
2021-06-15 14:44 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 15/26] meson: sort header tests Paolo Bonzini
2021-06-08 12:15 ` Philippe Mathieu-Daudé
2021-06-15 14:47 ` Daniel P. Berrangé
2021-06-15 15:16 ` Paolo Bonzini
2021-06-15 15:50 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 16/26] meson: remove preadv from summary Paolo Bonzini
2021-06-15 14:48 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 17/26] configure, meson: move CONFIG_IVSHMEM to meson Paolo Bonzini
2021-06-15 14:50 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 18/26] configure: convert HAVE_BROKEN_SIZE_MAX " Paolo Bonzini
2021-06-15 14:51 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 19/26] configure: convert compiler tests to meson, part 1 Paolo Bonzini
2021-06-15 14:59 ` Daniel P. Berrangé
2021-06-15 15:15 ` Paolo Bonzini
2021-06-08 11:22 ` [PATCH 20/26] meson: store dependency('threads') in a variable Paolo Bonzini
2021-06-15 15:02 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 21/26] configure: convert compiler tests to meson, part 2 Paolo Bonzini
2021-06-15 15:03 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 22/26] configure: convert compiler tests to meson, part 3 Paolo Bonzini
2021-06-15 15:08 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 23/26] configure: convert CONFIG_STATIC_ASSERT tests to meson Paolo Bonzini
2021-06-08 12:17 ` Philippe Mathieu-Daudé
2021-06-15 15:08 ` Daniel P. Berrangé
2021-06-08 11:22 ` [PATCH 24/26] configure: convert compiler tests to meson, part 4 Paolo Bonzini
2021-06-15 15:13 ` Daniel P. Berrangé
2021-06-08 11:23 ` [PATCH 25/26] configure: convert compiler tests to meson, part 5 Paolo Bonzini
2021-06-15 15:15 ` Daniel P. Berrangé
2021-06-08 11:23 ` [PATCH 26/26] configure: convert compiler tests to meson, part 6 Paolo Bonzini
2021-06-15 15:17 ` Daniel P. Berrangé
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