From: Alan Third <alan@idiocy.org>
To: David Caldwell <david@porkrind.org>
Cc: Philipp Stephani <p.stephani2@gmail.com>, 27059@debbugs.gnu.org
Subject: bug#27059: Can't compile master branch on Mac OS X
Date: Thu, 25 May 2017 20:02:20 +0100 [thread overview]
Message-ID: <20170525190220.GA3197@breton.holly.idiocy.org> (raw)
In-Reply-To: <2b432643-7cfb-fa05-6b08-97bfc1da9d2b@porkrind.org>
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On Thu, May 25, 2017 at 09:25:47AM -0700, David Caldwell wrote:
> That didn't work, neither did the current HEAD. The current HEAD is
> missing the backslash after the defined (NS_IMPL_GNUSTEP), for one
> thing. But testing against MAC_OS_X_VERSION_10_10 doesn't work on older
> OSes, it needs to be the hardcoded value '101000' (since the define
> didn't exist back then). To sum up, this is the patch that worked for me:
Please try the attached patch. It should be a neater solution
(checking whether the compiler supports instancetype directly).
If MAC_OS_X_VERSION_10_10 doesn’t exist we can define it ourselves, we
already do this with the other versions that have specific
requirements (top of nsterm.h). I evidently forgot to check whether we
need to define it before committing the change.
Not that it matters now, this patch should work without it.
--
Alan Third
[-- Attachment #2: 0001-Check-if-instancetype-supported-in-ObjC.patch --]
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From 94b5820b8e71ef5a2692f2515ff376b65ce8434b Mon Sep 17 00:00:00 2001
In-Reply-To: <87shjt65o7.fsf_-_@users.sourceforge.net>
References: <87shjt65o7.fsf_-_@users.sourceforge.net>
From: Alan Third <alan@idiocy.org>
Date: Thu, 25 May 2017 19:23:39 +0100
Subject: [PATCH] Check if instancetype supported in ObjC
To: npostavs@users.sourceforge.net
Cc: 27041@debbugs.gnu.org, "Charles A. Roelli" <charles@aurox.ch>
* configure.ac: Add check for instancetype.
* src/nsterm.h [!NATIVE_OBJC_INSTANCETYPE]: Define instancetype.
---
configure.ac | 17 +++++++++++++++++
src/nsterm.h | 20 +++++++++++---------
2 files changed, 28 insertions(+), 9 deletions(-)
diff --git a/configure.ac b/configure.ac
index 6d23b5d214..b525666a85 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1980,6 +1980,23 @@ AC_DEFUN
AC_SUBST(NS_OBJ)
AC_SUBST(NS_OBJC_OBJ)
+AC_CACHE_CHECK(
+ [if the Objective C compiler supports instancetype],
+ [emacs_cv_objc_instancetype],
+ [AC_LANG_PUSH([Objective C])
+ AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE([[@interface Test
+ + (instancetype)test;
+ @end]])],
+ emacs_cv_objc_instancetype=yes,
+ emacs_cv_objc_instancetype=no)
+ AC_LANG_POP([Objective C])])
+
+if test x$emacs_cv_objc_instancetype = xyes ; then
+ AC_DEFINE(NATIVE_OBJC_INSTANCETYPE, 1,
+ [Define if ObjC compiler supports instancetype natively.])
+fi
+
HAVE_W32=no
W32_OBJ=
W32_LIBS=
diff --git a/src/nsterm.h b/src/nsterm.h
index 8f3d92b353..f75e3759e4 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -62,15 +62,6 @@ typedef CGFloat EmacsCGFloat;
typedef float EmacsCGFloat;
#endif
-/* FIXME: instancetype is a language built-in, but older versions of
- Clang don't support it, and I don't know if GCC supports it at all.
- Should this be tested for in ./configure? */
-#if defined (NS_IMPL_GNUSTEP)
- || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_10
-typedef id instancetype;
-typedef NSUInteger NSWindowStyleMask;
-#endif
-
/* ==========================================================================
Trace support
@@ -365,6 +356,12 @@ char const * nstrace_fullscreen_type_name (int);
#endif
+/* If the compiler doesn't support instancetype, map it to id. */
+#ifndef NATIVE_OBJC_INSTANCETYPE
+typedef id instancetype;
+#endif
+
+
/* ==========================================================================
NSColor, EmacsColor category.
@@ -1302,6 +1299,11 @@ extern char gnustep_base_version[]; /* version tracking */
#define NSWindowStyleMaskUtilityWindow NSUtilityWindowMask
#define NSAlertStyleCritical NSCriticalAlertStyle
#define NSControlSizeRegular NSRegularControlSize
+
+/* And adds NSWindowStyleMask. */
+#ifdef __OBJC__
+typedef NSUInteger NSWindowStyleMask;
+#endif
#endif
#endif /* HAVE_NS */
--
2.12.0
next prev parent reply other threads:[~2017-05-25 19:02 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-24 16:22 bug#27059: Can't compile master branch on Mac OS X David Caldwell
2017-05-24 20:20 ` Philipp Stephani
2017-05-25 16:25 ` David Caldwell
2017-05-25 19:02 ` Alan Third [this message]
2017-05-26 17:23 ` David Caldwell
2017-05-26 18:47 ` Philipp Stephani
2017-05-26 19:30 ` David Caldwell
2017-05-26 23:58 ` Alan Third
2017-05-29 6:55 ` David Caldwell
2017-05-29 8:24 ` Alan Third
2017-05-29 8:56 ` David Caldwell
2017-05-29 16:05 ` Alan Third
2017-05-30 18:36 ` David Caldwell
2017-05-30 19:01 ` Alan Third
2017-05-31 23:39 ` David Caldwell
2017-05-25 21:12 ` OKAZAKI Tetsurou
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