################################################################################
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#
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# musl
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#
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################################################################################
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MUSL_VERSION = 1.2.2
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MUSL_SITE = http://www.musl-libc.org/releases
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MUSL_LICENSE = MIT
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MUSL_LICENSE_FILES = COPYRIGHT
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MUSL_CPE_ID_VENDOR = musl-libc
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# Before musl is configured, we must have the first stage
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# cross-compiler and the kernel headers
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MUSL_DEPENDENCIES = host-gcc-initial linux-headers
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# musl does not provide an implementation for sys/queue.h or sys/cdefs.h.
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# So, add the musl-compat-headers package that will install those files,
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# into the staging directory:
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# sys/queue.h: header from NetBSD
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# sys/cdefs.h: minimalist header bundled in Buildroot
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MUSL_DEPENDENCIES += musl-compat-headers
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# musl is part of the toolchain so disable the toolchain dependency
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MUSL_ADD_TOOLCHAIN_DEPENDENCY = NO
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MUSL_INSTALL_STAGING = YES
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# musl does not build with LTO, so explicitly disable it
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# when using a compiler that may have support for LTO
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ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_4_7),y)
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MUSL_EXTRA_CFLAGS += -fno-lto
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endif
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# Thumb build is broken, build in ARM mode, since all architectures
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# that support Thumb1 also support ARM.
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ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB),y)
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MUSL_EXTRA_CFLAGS += -marm
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endif
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define MUSL_CONFIGURE_CMDS
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(cd $(@D); \
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$(TARGET_CONFIGURE_OPTS) \
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CFLAGS="$(filter-out -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64,$(TARGET_CFLAGS)) $(MUSL_EXTRA_CFLAGS)" \
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CPPFLAGS="$(filter-out -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64,$(TARGET_CPPFLAGS))" \
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./configure \
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--target=$(GNU_TARGET_NAME) \
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--host=$(GNU_TARGET_NAME) \
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--prefix=/usr \
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--libdir=/lib \
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--disable-gcc-wrapper \
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--enable-static \
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$(if $(BR2_STATIC_LIBS),--disable-shared,--enable-shared))
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endef
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define MUSL_BUILD_CMDS
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$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)
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endef
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define MUSL_INSTALL_STAGING_CMDS
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$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) \
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DESTDIR=$(STAGING_DIR) install-libs install-tools install-headers
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endef
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define MUSL_INSTALL_TARGET_CMDS
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$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) \
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DESTDIR=$(TARGET_DIR) install-libs
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$(RM) $(addprefix $(TARGET_DIR)/lib/,crt1.o crtn.o crti.o rcrt1.o Scrt1.o)
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endef
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$(eval $(generic-package))
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