1 files changed, 119 insertions, 0 deletions
diff --git a/build/moz.configure/headers.configure b/build/moz.configure/headers.configure
new file mode 100644
index 0000000000..5332c7365f
--- /dev/null
+++ b/build/moz.configure/headers.configure
@@ -0,0 +1,119 @@
+# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# Check for headers defining standard int types.
+check_header("stdint.h")
+have_inttypes = check_header("inttypes.h")
+
+# Assume we have ansi C header files available.
+set_define("STDC_HEADERS", True)
+
+set_config("HAVE_INTTYPES_H", have_inttypes)
+
+building_linux = depends(target)(lambda target: target.kernel == "Linux")
+
+have_malloc = check_header("malloc.h")
+
+check_header("alloca.h")
+
+add_old_configure_assignment("HAVE_MALLOC_H", have_malloc)
+
+check_headers(
+    "sys/byteorder.h",
+    "getopt.h",
+    "unistd.h",
+    "nl_types.h",
+    "cpuid.h",
+    "fts.h",
+)
+
+# These are all the places some variant of statfs can be hiding.
+check_headers(
+    "sys/statvfs.h",
+    "sys/statfs.h",
+    "sys/vfs.h",
+    "sys/mount.h",
+)
+
+# Quota support
+# Check for both the header and quotactl() because Android headers can have the
+# header but not quotactl().
+set_define(
+    "HAVE_SYS_QUOTA_H",
+    try_compile(
+        includes=["sys/quota.h"],
+        body="quotactl(0, nullptr, 0, (caddr_t)nullptr);",
+        check_msg="for sys/quota.h",
+    ),
+)
+check_header("linux/quota.h", includes=["sys/socket.h"], when=building_linux)
+
+# SCTP support - needs various network include headers
+check_headers(
+    "linux/if_addr.h",
+    "linux/rtnetlink.h",
+    includes=["sys/socket.h"],
+    when=building_linux,
+)
+
+check_header("sys/queue.h")
+
+check_headers(
+    "sys/types.h",
+    "netinet/in.h",
+    "byteswap.h",
+)
+
+# memfd_create(2) -- Note that older versions of the Linux man-pages
+# project incorrectly cite <sys/memfd.h>, which doesn't exist; this
+# was fixed in the man-pages-5.00 release.
+set_define(
+    "HAVE_MEMFD_CREATE",
+    try_compile(
+        includes=["sys/mman.h"],
+        body='memfd_create("", 0);',
+        check_msg="for memfd_create in sys/mman.h",
+    ),
+)
+
+# TODO: Move these checks to file specific to --enable-project=js.
+have_perf_event_h = check_header("linux/perf_event.h", when=building_linux)
+
+option(
+    "--with-linux-headers",
+    help="location where the Linux kernel headers can be found",
+    nargs=1,
+)
+
+passed_linux_header_flags = depends_if("--with-linux-headers")(
+    lambda v: ["-I%s" % v[0]]
+)
+
+
+@depends(
+    try_compile(
+        includes=["asm/unistd.h"],
+        body="return sizeof(__NR_perf_event_open);",
+        flags=passed_linux_header_flags,
+        check_msg="for perf_event_open system call",
+    ),
+    when=have_perf_event_h,
+)
+def have_perf_event_open(have_perf_event_open):
+    if have_perf_event_open:
+        return True
+
+
+set_config("HAVE_LINUX_PERF_EVENT_H", have_perf_event_open)
+
+
+@depends(passed_linux_header_flags, have_perf_event_open)
+def linux_headers_includes(passed_linux_header_flags, have_perf_event_open):
+    if have_perf_event_open and passed_linux_header_flags:
+        return passed_linux_header_flags[0]
+
+
+set_config("LINUX_HEADERS_INCLUDES", linux_headers_includes)