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From: "markus.boeck02 at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug compile/26117] New: Link failure on windows due to invalid
 library order
Date: Mon, 15 Jun 2020 14:41:15 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26117

            Bug ID: 26117
           Summary: Link failure on windows due to invalid library order
           Product: gdb
           Version: HEAD
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: compile
          Assignee: unassigned at sourceware dot org
          Reporter: markus.boeck02 at gmail dot com
  Target Milestone: ---

Linking gdb currently yields following linker error when compiling with
x86_64-w64-mingw32-gcc:

/mnt/c/GCC-Build/NewestLinux/lib/gcc/x86_64-w64-mingw32/10/../../../../x86_=
64-w64-mingw32/bin/ld:
../gnulib/import/libgnu.a(inet_ntop.o): in function `rpl_inet_ntop':
C:/GDB-Build/binutils-gdb/build/gnulib/import/../../../gnulib/import/inet_n=
top.c:58:
undefined reference to `__imp_inet_ntop'

The symbol __imp_inet_ntop is contained in ws2_32 which is correctly specif=
ied
on the command line to the linker but is specified in the wrong order for
libgnu.a

Excerpt from the linker command for gdb.exe:
/mnt/c/GDB-Build/libexpat/expat/install/lib/libexpat.a -lws2_32
../gnulib/import/libgnu.a -lstdc++ -lmingw32 -lgcc -lgcc_eh

When putting -lws2_32 behind libgnu.a instead of in front the link succeeds.
When using -fuse-ld=3Dlld (an order insensitive linker) the link also succe=
eds.

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