af58830d07
This reverts commit 06879a25e2. This
needs other commits to be applied first.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
47 lines
1.7 KiB
Plaintext
47 lines
1.7 KiB
Plaintext
# See src/google/protobuf/stubs/platform_macros.h for supported archs.
|
|
#
|
|
# On PowerPC, the __atomic_*() built-ins for 1-byte, 2-byte and 4-byte
|
|
# types are available built-in. However, the __atomic_*() built-ins for
|
|
# 8-byte types is implemented via libatomic, so only available since gcc
|
|
# 4.8.
|
|
#
|
|
# In Buildroot, to simplify things, we've decided to simply require gcc
|
|
# 4.8 as soon as the architectures has at least one __atomic_*() built-in
|
|
# variant that requires libatomic.
|
|
#
|
|
# Since protobuf most likely only uses the 1, 2 and 4-byte variants, it
|
|
# *could* technically build with gcc 4.7. This is probably not a big deal,
|
|
# and we can live with requiring gcc 4.8 on PowerPC to build protobuf.
|
|
#
|
|
# host-protobuf only builds on certain architectures
|
|
config BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
|
|
bool
|
|
default y if BR2_arm
|
|
default y if BR2_i386
|
|
default y if BR2_mipsel
|
|
default y if BR2_x86_64
|
|
default y if BR2_sparc64
|
|
default y if BR2_TOOLCHAIN_HAS_ATOMIC
|
|
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
|
|
depends on BR2_USE_MMU # fork()
|
|
depends on !BR2_TOOLCHAIN_HAS_BINUTILS_BUG_21464
|
|
|
|
config BR2_PACKAGE_PROTOBUF
|
|
bool "protobuf"
|
|
depends on BR2_INSTALL_LIBSTDCPP
|
|
depends on BR2_TOOLCHAIN_HAS_THREADS
|
|
depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
|
|
depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 # C++11
|
|
depends on !BR2_STATIC_LIBS
|
|
help
|
|
Protocol buffers are Google's language-neutral,
|
|
platform-neutral, extensible mechanism for serializing
|
|
structured data.
|
|
|
|
https://developers.google.com/protocol-buffers
|
|
|
|
comment "protobuf needs a toolchain w/ C++, threads, dynamic library, gcc >= 4.8"
|
|
depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS \
|
|
|| BR2_STATIC_LIBS || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
|
|
depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
|