On Thu, May 11, 2023 at 08:51:13PM +0200, Enrico Forestieri wrote:
On Thu, May 11, 2023 at 07:59:48PM +0200, Enrico Forestieri wrote:
On Thu, May 11, 2023 at 04:32:45PM +0200, Jean-Marc Lasgouttes wrote:
Is this somthing special about cygwin or is our autoconf test broken?
The former, I think.
Or not, maybe, see below.
This is what I get when comparing cygwin and native windows
configuration:
$ diff -up build-cygwin/config.h build-win32/config.h | grep -B1 STD_STRING
/* std::string uses copy-on-write */
-#define STD_STRING_USES_COW 1
+/* #undef STD_STRING_USES_COW */
So, cygwin is using COW in the std::string implementation...
I hacked config.h by undefining STD_STRING_USES_COW and recompiled.
LyX does not crash anymore and works fine, seemingly...
Anyway, I don't think the autoconf test is broken because:
$ diff -up
/usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/x86_64-pc-cygwin/bits/c++config.h
/usr/lib/gcc/x86_64-w64-mingw32/11/include/c++/x86_64-w64-mingw32/bits/c++config.h
| grep -C1 _GLIBCXX_USE_CXX11_ABI
#ifndef _GLIBCXX_USE_CXX11_ABI
-# define _GLIBCXX_USE_CXX11_ABI 0
+# define _GLIBCXX_USE_CXX11_ABI 1
#endif
--
Enrico
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