mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-11 02:56:06 +00:00
40 lines
1.1 KiB
Plaintext
40 lines
1.1 KiB
Plaintext
dnl This Source Code Form is subject to the terms of the Mozilla Public
|
|
dnl License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
AC_DEFUN([MOZ_LINUX_PERF_EVENT],
|
|
[
|
|
|
|
MOZ_ARG_WITH_STRING(linux-headers,
|
|
[ --with-linux-headers=DIR
|
|
location where the Linux kernel headers can be found],
|
|
linux_headers=$withval)
|
|
|
|
LINUX_HEADERS_INCLUDES=
|
|
|
|
if test "$linux_headers"; then
|
|
LINUX_HEADERS_INCLUDES="-I$linux_headers"
|
|
fi
|
|
|
|
_SAVE_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS $LINUX_HEADERS_INCLUDES"
|
|
|
|
dnl Performance measurement headers.
|
|
MOZ_CHECK_HEADER(linux/perf_event.h,
|
|
[AC_CACHE_CHECK(for perf_event_open system call,ac_cv_perf_event_open,
|
|
[AC_TRY_COMPILE([#include <asm/unistd.h>],[return sizeof(__NR_perf_event_open);],
|
|
ac_cv_perf_event_open=yes,
|
|
ac_cv_perf_event_open=no)])])
|
|
if test "$ac_cv_perf_event_open" = "yes"; then
|
|
HAVE_LINUX_PERF_EVENT_H=1
|
|
else
|
|
HAVE_LINUX_PERF_EVENT_H=
|
|
LINUX_HEADERS_INCLUDES=
|
|
fi
|
|
AC_SUBST(HAVE_LINUX_PERF_EVENT_H)
|
|
AC_SUBST(LINUX_HEADERS_INCLUDES)
|
|
|
|
CFLAGS="$_SAVE_CFLAGS"
|
|
|
|
])
|