public inbox for glibc-cvs@sourceware.org
help / color / mirror / Atom feed
From: Adhemerval Zanella <azanella@sourceware.org>
To: glibc-cvs@sourceware.org
Subject: [glibc/azanella/clang] Rewrite find_cxx_header config configure.ac
Date: Fri, 29 Apr 2022 14:01:48 +0000 (GMT)	[thread overview]
Message-ID: <20220429140148.DDE403857362@sourceware.org> (raw)

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1fd2dc8dbf59d4632996d50b7fc89ba85824b9de

commit 1fd2dc8dbf59d4632996d50b7fc89ba85824b9de
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Tue Mar 8 16:40:35 2022 -0300

    Rewrite find_cxx_header config configure.ac
    
    To work with clang++.

Diff:
---
 configure    | 4 ++--
 configure.ac | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/configure b/configure
index 93fd33be7f..ee00e7fac5 100755
--- a/configure
+++ b/configure
@@ -5580,8 +5580,8 @@ fi
 # copy of those headers in Makerules.
 if test -n "$CXX"; then
   find_cxx_header () {
-    echo "#include <$1>" | $CXX -M -MP -x c++ - 2>/dev/null \
-	 | sed -n "\,$1:,{s/:\$//;p}"
+    echo "#include <$1>" | $CXX -H -fsyntax-only -x c++ - 2>&1 \
+	 | sed -rn "\,^\.? .,{s/^\.*\. //p}"
   }
   CXX_CSTDLIB_HEADER="$(find_cxx_header cstdlib)"
   CXX_CMATH_HEADER="$(find_cxx_header cmath)"
diff --git a/configure.ac b/configure.ac
index a9e4bccaf6..737e842014 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1136,8 +1136,8 @@ AC_SUBST(CXX_SYSINCLUDES)
 # copy of those headers in Makerules.
 if test -n "$CXX"; then
   find_cxx_header () {
-    echo "#include <$1>" | $CXX -M -MP -x c++ - 2>/dev/null \
-	 | sed -n "\,$1:,{s/:\$//;p}"
+    echo "#include <$1>" | $CXX -H -fsyntax-only -x c++ - 2>&1 \
+	 | sed -rn "\,^\.? .,{s/[^\.]*\. //p}"
   }
   CXX_CSTDLIB_HEADER="$(find_cxx_header cstdlib)"
   CXX_CMATH_HEADER="$(find_cxx_header cmath)"


             reply	other threads:[~2022-04-29 14:01 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-29 14:01 Adhemerval Zanella [this message]
  -- strict thread matches above, loose matches on Subject: below --
2022-10-28 17:38 Adhemerval Zanella
2022-10-04 12:56 Adhemerval Zanella
2022-06-09 21:17 Adhemerval Zanella
2022-06-09 13:14 Adhemerval Zanella
2022-06-03 14:03 Adhemerval Zanella
2022-05-13 14:17 Adhemerval Zanella
2022-05-12 19:31 Adhemerval Zanella
2022-05-10 18:21 Adhemerval Zanella
2022-04-04 12:52 Adhemerval Zanella
2022-03-31 19:04 Adhemerval Zanella
2022-03-29 20:27 Adhemerval Zanella
2022-03-16 17:59 Adhemerval Zanella
2022-03-15 18:37 Adhemerval Zanella
2022-03-11 17:21 Adhemerval Zanella
2022-03-10 19:20 Adhemerval Zanella

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=20220429140148.DDE403857362@sourceware.org \
    --to=azanella@sourceware.org \
    --cc=glibc-cvs@sourceware.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;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).