mk: build with _GNU_SOURCE defined by default

[dpdk.git] / mk / target / generic / rte.vars.mk

diff --git a/mk/target/generic/rte.vars.mk b/mk/target/generic/rte.vars.mk
index 5d22a6a..dd149ac 100644 (file)
--- a/mk/target/generic/rte.vars.mk
+++ b/mk/target/generic/rte.vars.mk
@@ -1,33 +1,5 @@
-#   BSD LICENSE
-#
-#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
-#   All rights reserved.
-#
-#   Redistribution and use in source and binary forms, with or without
-#   modification, are permitted provided that the following conditions
-#   are met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above copyright
-#       notice, this list of conditions and the following disclaimer in
-#       the documentation and/or other materials provided with the
-#       distribution.
-#     * Neither the name of Intel Corporation nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2010-2014 Intel Corporation
 
 #
 # This .mk is the generic target rte.var.mk ; it includes .mk for
@@ -38,16 +10,16 @@
 #
 # machine:
 #
-#   - can define ARCH variable (overriden by cmdline value)
-#   - can define CROSS variable (overriden by cmdline value)
-#   - define MACHINE_CFLAGS variable (overriden by cmdline value)
-#   - define MACHINE_LDFLAGS variable (overriden by cmdline value)
-#   - define MACHINE_ASFLAGS variable (overriden by cmdline value)
-#   - can define CPU_CFLAGS variable (overriden by cmdline value) that
+#   - can define ARCH variable (overridden by cmdline value)
+#   - can define CROSS variable (overridden by cmdline value)
+#   - define MACHINE_CFLAGS variable (overridden by cmdline value)
+#   - define MACHINE_LDFLAGS variable (overridden by cmdline value)
+#   - define MACHINE_ASFLAGS variable (overridden by cmdline value)
+#   - can define CPU_CFLAGS variable (overridden by cmdline value) that
 #     overrides the one defined in arch.
-#   - can define CPU_LDFLAGS variable (overriden by cmdline value) that
+#   - can define CPU_LDFLAGS variable (overridden by cmdline value) that
 #     overrides the one defined in arch.
-#   - can define CPU_ASFLAGS variable (overriden by cmdline value) that
+#   - can define CPU_ASFLAGS variable (overridden by cmdline value) that
 #     overrides the one defined in arch.
 #
 ifneq ($(wildcard $(RTE_SDK)/mk/machine/$(RTE_MACHINE)/rte.vars.mk),)
@@ -59,15 +31,15 @@ endif
 #
 # arch:
 #
-#   - define ARCH variable (overriden by cmdline or by previous
+#   - define ARCH variable (overridden by cmdline or by previous
 #     optional define in machine .mk)
-#   - define CROSS variable (overriden by cmdline or previous define
+#   - define CROSS variable (overridden by cmdline or previous define
 #     in machine .mk)
-#   - define CPU_CFLAGS variable (overriden by cmdline or previous
+#   - define CPU_CFLAGS variable (overridden by cmdline or previous
 #     define in machine .mk)
-#   - define CPU_LDFLAGS variable (overriden by cmdline or previous
+#   - define CPU_LDFLAGS variable (overridden by cmdline or previous
 #     define in machine .mk)
-#   - define CPU_ASFLAGS variable (overriden by cmdline or previous
+#   - define CPU_ASFLAGS variable (overridden by cmdline or previous
 #     define in machine .mk)
 #   - may override any previously defined variable
 #
@@ -77,9 +49,9 @@ include $(RTE_SDK)/mk/arch/$(RTE_ARCH)/rte.vars.mk
 # toolchain:
 #
 #   - define CC, LD, AR, AS, ...
-#   - define TOOLCHAIN_CFLAGS variable (overriden by cmdline value)
-#   - define TOOLCHAIN_LDFLAGS variable (overriden by cmdline value)
-#   - define TOOLCHAIN_ASFLAGS variable (overriden by cmdline value)
+#   - define TOOLCHAIN_CFLAGS variable (overridden by cmdline value)
+#   - define TOOLCHAIN_LDFLAGS variable (overridden by cmdline value)
+#   - define TOOLCHAIN_ASFLAGS variable (overridden by cmdline value)
 #   - may override any previously defined variable
 #
 include $(RTE_SDK)/mk/toolchain/$(RTE_TOOLCHAIN)/rte.vars.mk
@@ -87,9 +59,9 @@ include $(RTE_SDK)/mk/toolchain/$(RTE_TOOLCHAIN)/rte.vars.mk
 #
 # exec-env:
 #
-#   - define EXECENV_CFLAGS variable (overriden by cmdline)
-#   - define EXECENV_LDFLAGS variable (overriden by cmdline)
-#   - define EXECENV_ASFLAGS variable (overriden by cmdline)
+#   - define EXECENV_CFLAGS variable (overridden by cmdline)
+#   - define EXECENV_LDFLAGS variable (overridden by cmdline)
+#   - define EXECENV_ASFLAGS variable (overridden by cmdline)
 #   - may override any previously defined variable
 #
 include $(RTE_SDK)/mk/exec-env/$(RTE_EXEC_ENV)/rte.vars.mk
@@ -136,6 +108,9 @@ CFLAGS += -include $(RTE_SDK_BIN)/include/rte_config.h
 LDFLAGS += -L$(RTE_SDK_BIN)/lib
 endif
 
+# always define _GNU_SOURCE
+CFLAGS += -D_GNU_SOURCE
+
 export CFLAGS
 export LDFLAGS