Link static library error

[waruqi]

Description

I set --nimMainPrefix:libfoo, but it still does not work.

#19830
xmake-io/xmake#3273

test project: https://github.com/xmake-io/xmake/tree/master/tests/projects/nim/static_library

Nim Version

Nim Compiler Version 1.6.10 [Linux: amd64]

Current Output

ruki@4db94baa81bc:/mnt/xmake/tests/projects/nim/static_library$ xmake f -c;xmake -rv
checking for platform ... linux
checking for architecture ... x86_64
checking for nim ... /tmp/nim-1.6.10/bin//nim
checking for the nim compiler (nc) ... nim
checking for /tmp/nim-1.6.10/bin//nim ... ok
checking for flags (-d:release) ... ok
[ 33%]: linking.release libfoo.a
checking for nim ... /tmp/nim-1.6.10/bin//nim
checking for the nim static library archiver (ncar) ... nim
/tmp/nim-1.6.10/bin//nim c -d:release --nimcache:build/.gens/foo/linux/x86_64/release/nimcache --app:staticlib --noMain --passL:-s --nimMainPrefix:libfoo -o:build/linux/x86_64/release/libfoo.a src/foo.nim
[ 66%]: linking.release test
checking for nim ... /tmp/nim-1.6.10/bin//nim
checking for the nim linker (ncld) ... nim
/tmp/nim-1.6.10/bin//nim c -d:release --nimcache:build/.gens/test/linux/x86_64/release/nimcache --passL:-Lbuild/linux/x86_64/release --passL:-s --passL:-lfoo -o:build/linux/x86_64/release/test src/main.nim
error: Hint: used config file '/tmp/nim-1.6.10/config/nim.cfg' [Conf]
Hint: used config file '/tmp/nim-1.6.10/config/config.nims' [Conf]
.........................................................
Hint:  [Link]
/usr/bin/ld: build/linux/x86_64/release/libfoo.a(@mfoo.nim.c.o): in function `NimMainInner':
@mfoo.nim.c:(.text+0x0): multiple definition of `NimMainInner'; /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@mmain.nim.c.o:@mmain.nim.c:(.text+0x10): first defined here
/usr/bin/ld: build/linux/x86_64/release/libfoo.a(@mfoo.nim.c.o): in function `PreMainInner':
@mfoo.nim.c:(.text+0x10): multiple definition of `PreMainInner'; /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@mmain.nim.c.o:@mmain.nim.c:(.text+0x0): first defined here
/usr/bin/ld: build/linux/x86_64/release/libfoo.a(@mfoo.nim.c.o): in function `PreMain':
@mfoo.nim.c:(.text+0x1b0): multiple definition of `PreMain'; /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@mmain.nim.c.o:@mmain.nim.c:(.text+0x70): first defined here
/usr/bin/ld: build/linux/x86_64/release/libfoo.a(@mfoo.nim.c.o): in function `NimMainModule':
@mfoo.nim.c:(.text+0x290): multiple definition of `NimMainModule'; /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@mmain.nim.c.o:@mmain.nim.c:(.text+0x150): first defined here
/usr/bin/ld: build/linux/x86_64/release/libfoo.a(@mfoo.nim.c.o):(.bss+0x0): multiple definition of `gEnv'; /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@mmain.nim.c.o:(.bss+0x0): first defined here
/usr/bin/ld: build/linux/x86_64/release/libfoo.a(@mfoo.nim.c.o):(.bss+0x8): multiple definition of `cmdLine'; /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@mmain.nim.c.o:(.bss+0x8): first defined here
/usr/bin/ld: build/linux/x86_64/release/libfoo.a(@mfoo.nim.c.o):(.bss+0x10): multiple definition of `cmdCount'; /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@mmain.nim.c.o:(.bss+0x10): first defined here
collect2: error: ld returned 1 exit status
Error: execution of an external program failed: 'gcc   -o /mnt/xmake/tests/projects/nim/static_library/build/linux/x86_64/release/test  /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@m..@s..@s..@s..@s..@s..@s..@stmp@snim-1.6.10@slib@sstd@sprivate@sdigitsutils.nim.c.o /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@m..@s..@s..@s..@s..@s..@s..@stmp@snim-1.6.10@slib@ssystem@sdollars.nim.c.o /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@m..@s..@s..@s..@s..@s..@s..@stmp@snim-1.6.10@slib@ssystem@sio.nim.c.o /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@m..@s..@s..@s..@s..@s..@s..@stmp@snim-1.6.10@slib@ssystem.nim.c.o /mnt/xmake/tests/projects/nim/static_library/build/.gens/test/linux/x86_64/release/nimcache/@mmain.nim.c.o   -Lbuild/linux/x86_64/release -s -lfoo  -ldl'

### Expected Output

```text
work

Possible Solution

No response

Additional Information

No response

[waruqi]

I used --passL:-Wl,--allow-multiple-definition, it works now.

[waruqi]

Hello! I'm having similar issue trying to build a static lib in Nim and then use an other Nim script to import the lib. (It's for testing only). I got similar issue and add --passL:-Wl,--allow-multiple-definition to Nim worked for me.

It does not work now.

ld: unknown option: --allow-multiple-definition
clang: error: linker command failed with exit code 1 (use -v to see invocati
on)

xmake-io/xmake#4042 (comment)