From: Keith Irwin <keith@zentrope.com>
To: 43167@debbugs.gnu.org
Cc: Alan Third <alan@idiocy.org>
Subject: bug#43167: 28.0.50; Cannot build on MacOS due to -std=c99 change in configure.ac
Date: Tue, 1 Sep 2020 22:44:07 -0700 [thread overview]
Message-ID: <75F1FEBD-BFCF-44CB-A2E6-1BAC34D6D4F8@zentrope.com> (raw)
I’ve been unable to build Emacs from the master branch for the past several days on MacOS (Big Sur). Previously, compiling on Big Sur worked.
I get the following error:
CC fringe.o
CC image.o
CC json.o
CC nsterm.o
In file included from nsterm.m:46:
./lisp.h:1237:24: error: implicit declaration of function 'typeof' is invalid in
C99 [-Werror,-Wimplicit-function-declaration]
return USE_LSB_TAG ? make_fixnum (n) : XIL (n + (int0 << VALBITS));
^
./lisp.h:444:26: note: expanded from macro 'make_fixnum'
# define make_fixnum(n) lisp_h_make_fixnum (n)
^
./lisp.h:395:9: note: expanded from macro 'lisp_h_make_fixnum'
({ typeof (+(n)) lisp_h_make_fixnum_n = n; \
^
./lisp.h:1237:24: note: did you mean 'Ftype_of'?
./lisp.h:444:26: note: expanded from macro 'make_fixnum'
# define make_fixnum(n) lisp_h_make_fixnum (n)
^
./lisp.h:395:9: note: expanded from macro 'lisp_h_make_fixnum'
({ typeof (+(n)) lisp_h_make_fixnum_n = n; \
^
./globals.h:4765:8: note: 'Ftype_of' declared here
EXFUN (Ftype_of, 1);
^
In file included from nsterm.m:46:
./lisp.h:1237:24: error: expected ';' after expression
return USE_LSB_TAG ? make_fixnum (n) : XIL (n + (int0 << VALBITS));
I tracked the issue to this commit:
https://emba.gnu.org/emacs/emacs/-/commit/72f66f70eef18e3b25cc989d67711887304f184b
When I make this change to line ~1904:
#GNU_OBJC_CFLAGS="-std=c99”
GNU_OBJC_CFLAGS=""
I can compile emacs as per usual.
I’m running macOS 11, Beta 5, with Xcode Beta 6, though I’m not sure if that’s an issue.
$ clang --version
Apple clang version 12.0.0 (clang-1200.0.31.1)
Target: x86_64-apple-darwin20.0.0
Thread model: posix
InstalledDir: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
$ gcc --version
Configured with: --prefix=/Applications/Xcode-beta.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/4.2.1
Apple clang version 12.0.0 (clang-1200.0.31.1)
Target: x86_64-apple-darwin20.0.0
Thread model: posix
InstalledDir: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
next reply other threads:[~2020-09-02 5:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-02 5:44 Keith Irwin [this message]
2020-09-03 20:58 ` bug#43167: 28.0.50; Cannot build on MacOS due to -std=c99 change in configure.ac Alan Third
2020-09-03 21:04 ` Keith Irwin
2020-09-04 6:59 ` Eli Zaretskii
[not found] <m2pn67j6pd.fsf@breton.holly.idiocy.org>
2020-12-25 6:22 ` Lars Ingebrigtsen
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