kumquat-buildroot/package/musl-compat-headers/musl-compat-headers.mk
Yann E. MORIN e31eb72040 package/musl-compat-headers: provide compatibility headers not in musl
musl provides neither sys/queue.h nor sys/cdefs.h. Those two headers are
however quite widely used in a lot of packages (though they should at
least not use cdefs.h which is only full of mostly-legacy macros, and
which is mostly an internal header of glibc and was never really meant to
be exposed to, and used by packages).

But we don't live in an ideal world, so a lot of packages break when
those two headers are missing.

We already took care of sys/queue.h with the netbsd-queue package. But
the need for cdefs.h is getting more and more pressing.

We rename the netbsd-queue package into musl-compat-headers, and we
make it install sys/queue.h (from NetBSD) and sys/cdefs.h (a minimalist
one we bundle in Buildroot). We can't use the cdefs.h from NetBSD
because it includes machine-dependent headers; instead we bundle a very
minimalistic one, that covers only what we need.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-08-19 11:29:12 +02:00

35 lines
1.2 KiB
Makefile

################################################################################
#
# musl-compat-headers
#
################################################################################
# No main site, just using extra downloads
MUSL_COMPAT_HEADERS_QUEUE_H = http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/sys/queue.h?rev=1.70
MUSL_COMPAT_HEADERS_EXTRA_DOWNLOADS = $(MUSL_COMPAT_HEADERS_QUEUE_H)
MUSL_COMPAT_HEADERS_LICENSE = BSD-3c, Public Domain or CC0
MUSL_COMPAT_HEADERS_LICENSE_FILES = queue.h cdefs.h
MUSL_COMPAT_HEADERS_ADD_TOOLCHAIN_DEPENDENCY = NO
# Only installs headers
MUSL_COMPAT_HEADERS_INSTALL_TARGET = NO
MUSL_COMPAT_HEADERS_INSTALL_STAGING = YES
# Copying both headers so legal-info finds them (they are _LICENSE_FILES)
define MUSL_COMPAT_HEADERS_EXTRACT_CMDS
$(INSTALL) -m 0644 -D $(DL_DIR)/$(notdir $(MUSL_COMPAT_HEADERS_QUEUE_H)) $(@D)/queue.h
$(INSTALL) -m 0644 -D $(MUSL_COMPAT_HEADERS_PKGDIR)/cdefs.h $(@D)/cdefs.h
endef
define MUSL_COMPAT_HEADERS_INSTALL_STAGING_CMDS
$(INSTALL) -D -m 0644 $(@D)/queue.h \
$(STAGING_DIR)/usr/include/sys/queue.h
$(INSTALL) -D -m 0644 $(@D)/cdefs.h \
$(STAGING_DIR)/usr/include/sys/cdefs.h
endef
$(eval $(generic-package))