https://sourceware.org/bugzilla/show_bug.cgi?id=31864
Bug ID: 31864
Summary: libctf.la issues with dependency libraries
Product: binutils
Version: 2.43 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: libctf
Assignee: unassigned at sourceware dot org
Reporter: eliz at gnu dot org
Target Milestone: ---
The file libctf.la produced when building libctf with MinGW tools, as part of
the current gdb-15.0.91 pretest, looks wrong in how it spells out the
dependencies:
dependency_libs=' -L/d/gnu/gdb-15.0.91/libctf/../libiberty -Ld:/usr/lib
/d/gnu/gdb-15.0.91/bfd/libbfd.la /d/gnu/gdb-15.0.91/libsframe/libsframe.la
-liberty d:/usr/lib/libintl.la -liconv d:/usr/lib/libiconv.la -lz'
I see two problems here:
1. The -liberty library is mentioned not immediately after the corresponding -L
argument, which is -L/d/gnu/gdb-15.0.91/libctf/../libiberty, but after some
other -L arguments. This could cause the wrong version of libiberty.a to be
linked in. This actually happened to me (I had an old version of libiberty.a
in one of those directories), and it caused the linker to fail due to multiple
definitions of symbols.
2. Both libiconv.la and -liconv are mentioned. AFAIU, only one of them should
be mentioned, depending on whether the included libiconv or the system libiconv
are used. For example, dependency on zlib is listed correctly, as -lz, since
this build was using the system zlib.
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