Openwrt-libtool using the wrong linker

For Developers
1

I’m trying to port a library called Unibilium to OpenWrt as one of the dependencies of Neovim. The source MakeFile calls libtoolfor compiling and linking. Here’s the excerpt:

uniutil.lo: uniutil.c unibilium.h
	$(LIBTOOL) --mode=compile --tag=CC $(CC) -I. -DTERMINFO_DIRS='$(TERMINFO_DIRS)' -Wall -std=c99 $(CFLAGS) $(CFLAGS_DEBUG) -o $@ -c $<

$(LIBRARY): $(OBJECTS)
	$(LIBTOOL) --mode=link --tag=CC $(CC) $(LDFLAGS) -rpath '$(LIBDIR)' -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) -o $@ $^

I verified that it’s the libtoolfrom staging_dir/host/bin/libtool that’s being called, not the system one, and it works for the compiling part, but not for linking.

libtool --mode=link --tag=CC aarch64-openwrt-linux-musl-gcc -L/home/vkosikhin/git/openwrt/staging_dir/toolchain-aarch64_cortex-a53_gcc-14.3.0_musl/usr/lib -L/home/vkosikhin/git/openwrt/staging_dir/toolchain-aarch64_cortex-a53_gcc-14.3.0_musl/lib -fuse-ld=bfd -znow -zrelro  -rpath '/usr/local/lib' -version-info 4:0:0 -o libunibilium.la unibilium.lo uninames.lo uniutil.lo

OpenWrt-libtool: link: /home/vkosikhin/git/openwrt/staging_dir/host/bin/gcc -std=gnu23 -shared  -fPIC -DPIC  .libs/unibilium.o .libs/uninames.o .libs/uniutil.o   -L/home/vkosikhin/git/openwrt/staging_dir/toolchain-aarch64_cortex-a53_gcc-14.3.0_musl/usr/lib -L/home/vkosikhin/git/openwrt/staging_dir/toolchain-aarch64_cortex-a53_gcc-14.3.0_musl/lib  -fuse-ld=bfd   -Wl,-soname -Wl,libunibilium.so.4 -o .libs/libunibilium.so.4.0.0
/usr/bin/ld.bfd: .libs/unibilium.o: Relocations in generic ELF (EM: 183)
/usr/bin/ld.bfd: .libs/unibilium.o: Relocations in generic ELF (EM: 183)
/usr/bin/ld.bfd: .libs/unibilium.o: error adding symbols: file in wrong format
collect2: error: ld returned 1 exit status

I separated the log lines for clarity. As shown, the CCvariable still expands to aarch64-openwrt-linux-musl-gcc, but OpenWrt-libtoolis completely ignoring it in favor of the system cc. Why does this happen while linking specifically and not while compiling?

2

How would we guess what you stuffed in package makefile?

3

I omitted the package MakeFile because I’m not overriding any sections or variables yet. The InstallDev and …/install sections are a placeholder.

include $(TOPDIR)/rules.mk

PKG_NAME:=unibilium
PKG_VERSION:=2.0.0
PKG_RELEASE:=1

PKG_SOURCE_PROTO:=git
PKG_SOURCE_VERSION:=v$(PKG_VERSION)
PKG_SOURCE_URL:=https://github.com/mauke/unibilium.git
PKG_MIRROR_HASH:=9e6202d3a6ad5b977ed0ea7e037fd819fd8834d5b61f5353351ef0a1377b4bc5

PKG_MAINTAINER:=
PKG_LICENSE:=LGPL-3.0-or-later
PKG_LICENSE_FILES:=LICENSE

PKG_BUILD_PARALLEL:=1
PKG_INSTALL:=1

include $(INCLUDE_DIR)/package.mk

define Package/libunibilium
  SECTION:=libs
  CATEGORY:=Libraries
  TITLE:=Terminfo parsing library
  URL:=https://github.com/mauke/unibilium/
endef

define Package/libunibilium/description
  Unibilium is a very basic terminfo library which can read and write
  ncurses-style terminfo files interpret terminfo format strings.
endef

define Build/InstallDev
	$(INSTALL_DIR) $(1)/usr/include/tree_sitter
	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/local/include/tree_sitter/api.h $(1)/usr/include/tree_sitter/
	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/local/lib/pkgconfig/tree-sitter.pc $(1)/usr/lib/pkgconfig/
	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/local/lib/libtree-sitter.a $(1)/usr/lib/
	$(CP) $(PKG_INSTALL_DIR)/usr/local/lib/libtree-sitter.so* $(1)/usr/lib/
endef

define Package/libunibilium/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_INSTALL_DIR)/usr/local/lib/libtree-sitter.so* $(1)/usr/lib/
endef

$(eval $(call BuildPackage,libunibilium))
4

Patch out rpath statement.

3 Likes
5

Thank you, that did the trick.

1 Like
6

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