[buildroot] add preliminary support for musl

Musl is an alternative C-library, see http://www.musl-libc.org for more infos.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34314 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 38 insertions, 0 deletions

diff --git a/toolchain/musl/Makefile b/toolchain/musl/Makefile
new file mode 100644
index 0000000000..79ea175a46
--- /dev/null
+++ b/toolchain/musl/Makefile
@@ -0,0 +1,38 @@
+PATH_PREFIX=.
+
+include ./common.mk
+
+HOST_STAMP_BUILT:=$(HOST_BUILD_DIR)/.built
+HOST_STAMP_INSTALLED:=$(TOOLCHAIN_DIR)/stamp/.musl_installed
+
+HOST_BUILD_PARALLEL:=1
+
+define Host/SetToolchainInfo
+	$(SED) 's,^\(LIBC_TYPE\)=.*,\1=$(PKG_NAME),' $(TOOLCHAIN_DIR)/info.mk
+	$(SED) 's,^\(LIBC_URL\)=.*,\1=http://www.musl-libc.org/,' $(TOOLCHAIN_DIR)/info.mk
+	$(SED) 's,^\(LIBC_VERSION\)=.*,\1=$(PKG_VERSION),' $(TOOLCHAIN_DIR)/info.mk
+	$(SED) 's,^\(LIBC_SO_VERSION\)=.*,\1=$(LIBC_SO_VERSION),' $(TOOLCHAIN_DIR)/info.mk
+endef
+
+define Host/Compile
+	$(MAKE) $(HOST_JOBS) -C $(HOST_BUILD_DIR) all
+endef
+
+define Host/Install
+	$(call Host/SetToolchainInfo)
+	$(MAKE) -C $(HOST_BUILD_DIR) DESTDIR="$(TOOLCHAIN_DIR)/" install
+	( cd $(TOOLCHAIN_DIR) ; \
+		for d in lib usr/lib ; do \
+		  for f in libc.so libpthread.so libgcc_s.so ; do \
+		    if [ -f $$$$d/$$$$f -a ! -L $$$$d/$$$$f ] ; then \
+		      $(SED) 's,/usr/lib/,,g;s,/lib/,,g' $$$$d/$$$$f ; \
+		    fi \
+		  done \
+		done \
+	)
+	rm -f \
+		$(TOOLCHAIN_DIR)/lib/libresolv*.so* \
+		$(TOOLCHAIN_DIR)/lib/libnsl*.so*
+endef
+
+$(eval $(call HostBuild))