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mk: prefert inplace library paths to system ones

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The link failure happens on a system with stable nix-2.3.15
installed in /usr/lib64 (it's libutil.so API differs from master):

```
LANG=C make V=1
g++ -o /home/slyfox/dev/git/nix/src/libstore/libnixstore.so \
    -shared -L/usr/lib64 -Wl,--no-copy-dt-needed-entries \
    src/libstore/binary-cache-store.o ... src/libstore/uds-remote-store.o \
    -lsqlite3 -lcurl -lsodium -pthread -ldl -lseccomp -Wl,-z,defs -Wl,-soname=libnixstore.so
      -Wl,-rpath,/home/slyfox/dev/git/nix/src/libutil -Lsrc/libutil -lnixutil
ld: src/libstore/binary-cache-store.o: in function `nix::BinaryCacheStore::BinaryCacheStore(
    std::map<std::__cxx11::basic_string<char, std::char_traits<char>, ...
nix/src/libstore/binary-cache-store.cc:30: undefined reference to `nix::readFile(
    std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' ...
...
```

This happens due to `-L/usr/lib64 -Lsrc/libutil` search path ordering.
The change turns it into `-Lsrc/libutil -L/usr/lib64`.

Closes: https://github.com/NixOS/nix/issues/3087
This commit is contained in:
Sergei Trofimovich 2021-08-28 13:47:31 +01:00
parent af94b54db3
commit 4993174be5
2 changed files with 4 additions and 4 deletions
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4
mk/programs.mk
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@ -32,7 +32,7 @@ define build-program
$$(eval $$(call create-dir, $$(_d)))
$$($(1)_PATH): $$($(1)_OBJS) $$(_libs) | $$(_d)/
$$(trace-ld) $(CXX) -o $$@ $$(LDFLAGS) $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE))
$$(trace-ld) $(CXX) -o $$@ $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE)) $$(LDFLAGS) $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS)
$(1)_INSTALL_DIR ?= $$(bindir)
@ -49,7 +49,7 @@ define build-program
_libs_final := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_INSTALL_PATH))
$(DESTDIR)$$($(1)_INSTALL_PATH): $$($(1)_OBJS) $$(_libs_final) | $(DESTDIR)$$($(1)_INSTALL_DIR)/
$$(trace-ld) $(CXX) -o $$@ $$(LDFLAGS) $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE_INSTALLED))
$$(trace-ld) $(CXX) -o $$@ $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE_INSTALLED)) $$(LDFLAGS) $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS)
else