From 5b4e221c82f3010f2004c6cba145c188c9ebfe6c Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sun, 29 Sep 2013 03:57:34 +0000 Subject: gdb: btrace: fix build errors on older glibc builds It is possible to have a build of glibc where SYS_perf_event_open is not defined (because when the glibc was compiled, the syscall did not exist), but have newer kernel headers installed so that linux/perf_event.h is available. In this setup, you get a build failure: ./common/linux-btrace.c: In function 'kernel_supports_btrace': ./common/linux-btrace.c:316:23: error: 'SYS_perf_event_open' undeclared (first use in this function) Update the ifdef check to also see if the syscall is available. URL: https://bugs.gentoo.org/473522 Reported-by: William Throwe Signed-off-by: Mike Frysinger --- gdb/gdbserver/configure | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'gdb/gdbserver/configure') diff --git a/gdb/gdbserver/configure b/gdb/gdbserver/configure index 193aedc..55dba84 100755 --- a/gdb/gdbserver/configure +++ b/gdb/gdbserver/configure @@ -4873,7 +4873,7 @@ $as_echo "$as_me: running $SHELL $ac_sub_configure $ac_sub_configure_args --cach cd "$ac_popdir" -for ac_header in sgtty.h termio.h termios.h sys/reg.h string.h proc_service.h sys/procfs.h thread_db.h linux/elf.h stdlib.h errno.h fcntl.h signal.h sys/file.h malloc.h sys/ioctl.h netinet/in.h sys/socket.h netdb.h netinet/tcp.h arpa/inet.h sys/wait.h wait.h sys/un.h linux/perf_event.h +for ac_header in sgtty.h termio.h termios.h sys/reg.h string.h proc_service.h sys/procfs.h thread_db.h linux/elf.h stdlib.h errno.h fcntl.h signal.h sys/file.h malloc.h sys/ioctl.h netinet/in.h sys/socket.h netdb.h netinet/tcp.h arpa/inet.h sys/wait.h wait.h sys/un.h linux/perf_event.h sys/syscall.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" -- cgit v1.1