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libstdc++: detect DLLs on windows with <stacktrace> 

libstdc++-v3/ChangeLog:

	* acinclude.m4 (GLIBCXX_ENABLE_BACKTACE): Add check for
	tlhelp32.h, matching libbacktrace.
	* config.h.in: Regenerate.
	* configure: Regenerate.

Signed-off-by: Björn Schäpers <bjoern@hazardy.de>
pull/91/merge
Björn Schäpers 2024-05-17 11:45:28 +01:00 committed by Jonathan Wakely
parent 5aaf47cb19
commit d4635b504c
No known key found for this signature in database
3 changed files with 24 additions and 0 deletions
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5
libstdc++-v3/acinclude.m4
View File

@ -5481,6 +5481,11 @@ AC_DEFUN([GLIBCXX_ENABLE_BACKTRACE], [
BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_DL_ITERATE_PHDR=1"
fi
AC_CHECK_HEADERS(windows.h)
AC_CHECK_HEADERS(tlhelp32.h, [], [],
[#ifdef HAVE_WINDOWS_H
# include <windows.h>
#endif
])
# Check for the fcntl function.
if test -n "${with_target_subdir}"; then

3
libstdc++-v3/config.h.in
View File

@ -490,6 +490,9 @@
/* Define to 1 if you have the `timespec_get' function. */
#undef HAVE_TIMESPEC_GET
/* Define to 1 if you have the <tlhelp32.h> header file. */
#undef HAVE_TLHELP32_H
/* Define to 1 if the target supports thread-local storage. */
#undef HAVE_TLS

16
libstdc++-v3/configure vendored
View File

@ -53865,6 +53865,22 @@ _ACEOF
fi
done
for ac_header in tlhelp32.h
do :
ac_fn_c_check_header_compile "$LINENO" "tlhelp32.h" "ac_cv_header_tlhelp32_h" "#ifdef HAVE_WINDOWS_H
# include <windows.h>
#endif
"
if test "x$ac_cv_header_tlhelp32_h" = xyes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_TLHELP32_H 1
_ACEOF
fi
done