From: Eric Sunshine <sunshine@sunshineco.com>
To: "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
Cc: peff@peff.net, git@vger.kernel.org, larsxschneider@gmail.com,
Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH] Makefile: detect compiler and enable more warnings in DEVELOPER=1
Date: Sun, 18 Mar 2018 05:06:07 -0400 [thread overview]
Message-ID: <20180318090607.GA26226@flurp.local> (raw)
In-Reply-To: <20180318081834.16081-1-pclouds@gmail.com>
On Sun, Mar 18, 2018 at 09:18:34AM +0100, Nguyễn Thái Ngọc Duy wrote:
> The set of extra warnings we enable when DEVELOPER has to be
> conservative because we can't assume any compiler version the
> developer may use. Detect the compiler version so we know when it's
> safe to enable -Wextra and maybe more.
>
> Helped-by: Jeff King <peff@peff.net>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
> ---
> diff --git a/detect-compiler b/detect-compiler
> --- /dev/null
> +++ b/detect-compiler
> @@ -0,0 +1,50 @@
> +get_version_line() {
> + "$CC" -v 2>&1 | grep ' version '
> +}
On MacOS, "cc -v" output is:
--- >8 ---
Apple LLVM version 9.0.0 (clang-900.0.39.2)
Target: x86_64-apple-darwin16.7.0
Thread model: posix
InstalledDir: ...
--- >8 ---
> +get_family() {
> + get_version_line | sed 's/^\(.*\) version [0-9][^ ]* .*/\1/'
> +}
So, this returns "Apple LLVM".
> +case "$(get_family)" in
> +gcc)
> + print_flags gcc
> + ;;
> +*clang)
> + print_flags clang
> + ;;
> +"FreeBSD clang")
> + print_flags clang
> + ;;
> +*)
> + : unknown compiler family
> + ;;
> +esac
Which means you probably want to squash in:
--- >8 ---
diff --git a/detect-compiler b/detect-compiler
index bc2ea39ef5..3140416b40 100755
--- a/detect-compiler
+++ b/detect-compiler
@@ -41,6 +41,9 @@ gcc)
*clang)
print_flags clang
;;
+"Apple LLVM")
+ print_flags clang
+ ;;
"FreeBSD clang")
print_flags clang
;;
--- >8 ---
next prev parent reply other threads:[~2018-03-18 9:06 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-03 1:46 [PATCH] travis-ci: enable more warnings on travis linux-gcc job Nguyễn Thái Ngọc Duy
2018-03-16 19:33 ` [PATCH v2] " Nguyễn Thái Ngọc Duy
2018-03-16 21:22 ` Jeff King
2018-03-17 8:01 ` Duy Nguyen
2018-03-17 14:29 ` Lars Schneider
2018-03-17 14:59 ` Duy Nguyen
2018-03-17 16:08 ` Jeff King
2018-03-17 16:12 ` Jeff King
2018-03-17 23:50 ` Junio C Hamano
2018-03-18 8:18 ` [PATCH] Makefile: detect compiler and enable more warnings in DEVELOPER=1 Nguyễn Thái Ngọc Duy
2018-03-18 9:06 ` Eric Sunshine [this message]
2018-03-18 9:17 ` Duy Nguyen
2018-03-18 9:20 ` Jeff King
2018-03-18 9:24 ` Eric Sunshine
2018-03-18 9:28 ` Jeff King
2018-03-18 9:37 ` Eric Sunshine
2018-03-18 9:26 ` Jeff King
2018-03-18 9:45 ` Duy Nguyen
2018-03-18 15:55 ` Duy Nguyen
2018-03-18 18:56 ` Ramsay Jones
2018-03-19 16:30 ` Duy Nguyen
2018-03-20 5:32 ` Jeff King
2018-03-24 12:53 ` [PATCH v2] " Nguyễn Thái Ngọc Duy
2018-03-25 0:40 ` Eric Sunshine
2018-03-26 22:02 ` Junio C Hamano
2018-03-27 15:03 ` Duy Nguyen
2018-03-27 16:52 ` Junio C Hamano
2018-03-29 15:03 ` [PATCH v3 0/3] Enable more compiler warnings for devs Nguyễn Thái Ngọc Duy
2018-03-29 15:03 ` [PATCH v3 1/3] connect.c: mark die_initial_contact() NORETURN Nguyễn Thái Ngọc Duy
2018-03-29 15:03 ` [PATCH v3 2/3] Makefile: detect compiler and enable more warnings in DEVELOPER=1 Nguyễn Thái Ngọc Duy
2018-03-29 15:03 ` [PATCH v3 3/3] Makefile: add EAGER_DEVELOPER mode Nguyễn Thái Ngọc Duy
2018-03-31 16:40 ` [PATCH 4/3] Makefile: untangle DEVELOPER and -Werror Ævar Arnfjörð Bjarmason
2018-03-31 18:36 ` Duy Nguyen
2018-04-03 9:19 ` Ævar Arnfjörð Bjarmason
2018-04-03 15:17 ` Duy Nguyen
2018-04-06 21:42 ` Jeff King
2018-04-07 9:52 ` Duy Nguyen
2018-04-07 12:36 ` Ævar Arnfjörð Bjarmason
2018-04-07 17:03 ` Duy Nguyen
2018-04-07 18:38 ` Ævar Arnfjörð Bjarmason
2018-04-14 19:19 ` [PATCH v4 0/4] Make DEVELOPER more more flexible with DEVOPTS Ævar Arnfjörð Bjarmason
2018-04-16 4:57 ` Junio C Hamano
2018-04-14 19:19 ` [PATCH v4 1/4] connect.c: mark die_initial_contact() NORETURN Ævar Arnfjörð Bjarmason
2018-04-14 19:19 ` [PATCH v4 2/4] Makefile: detect compiler and enable more warnings in DEVELOPER=1 Ævar Arnfjörð Bjarmason
2018-04-14 19:19 ` [PATCH v4 3/4] Makefile: add a DEVOPTS to suppress -Werror under DEVELOPER Ævar Arnfjörð Bjarmason
2018-04-14 19:19 ` [PATCH v4 4/4] Makefile: add a DEVOPTS to get all of -Wextra Ævar Arnfjörð Bjarmason
2018-03-17 15:16 ` [PATCH v2] travis-ci: enable more warnings on travis linux-gcc job Jeff King
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180318090607.GA26226@flurp.local \
--to=sunshine@sunshineco.com \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=larsxschneider@gmail.com \
--cc=pclouds@gmail.com \
--cc=peff@peff.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).