public inbox for gentoo-commits@lists.gentoo.org
 help / color / mirror / Atom feed
From: "Michał Górny" <mgorny@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] repo/gentoo:master commit in: eclass/tests/, eclass/
Date: Sun, 26 Jun 2016 15:36:11 +0000 (UTC)	[thread overview]
Message-ID: <1466955287.2fea606eba41d9246f510814ce833879368bd835.mgorny@gentoo> (raw)

commit:     2fea606eba41d9246f510814ce833879368bd835
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Wed Jun 22 19:50:21 2016 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Sun Jun 26 15:34:47 2016 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2fea606e

toolchain-funcs.eclass: Add tc-get-compiler-type()

Add a tc-get-compiler-type() function that can be used to identify
the compiler being used, using the preprocessor defines. Alike
gcc-*version() routines, it uses CPP (which in turn uses CC).

The major usage would be applying compiler-specific quirks and limiting
gcc version checks to compilers that actually are gcc, since e.g. clang
reports gcc version 4.2 -- which would incorrectly cause numerous gcc
version checks in ebuilds to fail.

 eclass/tests/toolchain-funcs.sh | 40 ++++++++++++++++++++++++++++++++++++++++
 eclass/toolchain-funcs.eclass   | 22 ++++++++++++++++++++++
 2 files changed, 62 insertions(+)

diff --git a/eclass/tests/toolchain-funcs.sh b/eclass/tests/toolchain-funcs.sh
index 41c1ae5..6f37996 100755
--- a/eclass/tests/toolchain-funcs.sh
+++ b/eclass/tests/toolchain-funcs.sh
@@ -111,5 +111,45 @@ tc-ld-disable-gold
 )
 tend $?
 
+unset CPP
+
+tbegin "tc-get-compiler-type (gcc)"
+(
+export CC=gcc
+[[ $(tc-get-compiler-type) == gcc ]]
+)
+tend $?
+
+if type -P clang &>/dev/null; then
+	tbegin "tc-get-compiler-type (clang)"
+	(
+	export CC=clang
+	[[ $(tc-get-compiler-type) == clang ]]
+	)
+	tend $?
+fi
+
+if type -P pathcc &>/dev/null; then
+	tbegin "tc-get-compiler-type (pathcc)"
+	(
+	export CC=pathcc
+	[[ $(tc-get-compiler-type) == pathcc ]]
+	)
+	tend $?
+
+	tbegin "! tc-is-gcc (pathcc)"
+	(
+	export CC=pathcc
+	! tc-is-gcc
+	)
+	tend $?
+
+	tbegin "! tc-is-clang (pathcc)"
+	(
+	export CC=pathcc
+	! tc-is-clang
+	)
+	tend $?
+fi
 
 texit

diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass
index 1baab96..a29784c 100644
--- a/eclass/toolchain-funcs.eclass
+++ b/eclass/toolchain-funcs.eclass
@@ -585,6 +585,28 @@ tc-endian() {
 	esac
 }
 
+# @FUNCTION: tc-get-compiler-type
+# @RETURN: keyword identifying the compiler: gcc, clang, pathcc, unknown
+tc-get-compiler-type() {
+	local code='
+#if defined(__PATHSCALE__)
+	HAVE_PATHCC
+#elif defined(__clang__)
+	HAVE_CLANG
+#elif defined(__GNUC__)
+	HAVE_GCC
+#endif
+'
+	local res=$($(tc-getCPP "$@") -E -P - <<<"${code}")
+
+	case ${res} in
+		*HAVE_PATHCC*)	echo pathcc;;
+		*HAVE_CLANG*)	echo clang;;
+		*HAVE_GCC*)		echo gcc;;
+		*)				echo unknown;;
+	esac
+}
+
 # Internal func.  The first argument is the version info to expand.
 # Query the preprocessor to improve compatibility across different
 # compilers rather than maintaining a --version flag matrix. #335943


             reply	other threads:[~2016-06-26 15:36 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-26 15:36 Michał Górny [this message]
  -- strict thread matches above, loose matches on Subject: below --
2025-03-03 19:27 [gentoo-commits] repo/gentoo:master commit in: eclass/tests/, eclass/ Sam James
2024-10-08 15:29 Ulrich Müller
2024-02-10 10:47 Michał Górny
2024-02-10 10:47 Michał Górny
2023-09-14  5:30 Michał Górny
2023-07-02 15:21 Michał Górny
2023-06-18 14:57 Michał Górny
2023-06-18 14:57 Michał Górny
2023-06-07  9:03 Ulrich Müller
2022-11-15 16:34 Michał Górny
2022-10-10 20:52 Michał Górny
2022-09-28 20:55 Michał Górny
2022-05-01  7:30 Michał Górny
2022-02-09  9:39 Michał Górny
2022-01-09  8:09 Michał Górny
2021-06-23 21:44 Michał Górny
2021-01-15 17:05 Michał Górny
2021-01-05 23:01 Sergei Trofimovich
2020-05-25  6:12 Michał Górny
2020-03-28 19:54 Sergei Trofimovich
2020-03-26  7:51 Sergei Trofimovich
2020-01-11 23:53 Sergei Trofimovich
2019-12-30 12:59 Michał Górny
2019-12-30 12:59 Michał Górny
2019-12-24 11:01 Sergei Trofimovich
2018-04-18 18:13 Mike Gilbert
2018-01-04 21:56 Michał Górny
2017-09-26 18:46 Ulrich Müller
2017-09-19 11:08 Michał Górny
2017-08-25 13:53 Michał Górny
2017-08-11 14:35 Michał Górny
2017-08-08 19:42 Michał Górny
2017-03-18  7:33 Michał Górny
2017-02-09 18:16 Mike Frysinger
2016-12-18 13:46 Michał Górny
2016-06-27  5:58 Michał Górny
2016-01-08  5:14 Michał Górny
2016-01-08  5:14 Michał Górny
2015-12-09 20:42 Michał Górny
2015-11-24 17:03 Mike Frysinger
2015-11-11 10:27 Michał Górny

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

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1466955287.2fea606eba41d9246f510814ce833879368bd835.mgorny@gentoo \
    --to=mgorny@gentoo.org \
    --cc=gentoo-commits@lists.gentoo.org \
    --cc=gentoo-dev@lists.gentoo.org \
    /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.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox