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Linking error when compiling with "--enable-debug" on OpenBSD 6.7 #5862

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emilengler opened this issue Aug 26, 2020 · 6 comments
Closed

Linking error when compiling with "--enable-debug" on OpenBSD 6.7 #5862

emilengler opened this issue Aug 26, 2020 · 6 comments

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@emilengler
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emilengler commented Aug 26, 2020

I did this

export AUTOCONF_VERSION=2.69
export AUTOMAKE_VERSION=1.16
./buildconf
./configure --enable-debug
make

...
ld: error: undefined symbol: curl_dbg_malloc
>>> referenced by slist_wc.c:45
>>>               curl-slist_wc.o:(slist_wc_append)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by slist_wc.c:69
>>>               curl-slist_wc.o:(slist_wc_free_all)

ld: error: undefined symbol: curl_dbg_fopen
>>> referenced by tool_cb_dbg.c:84
>>>               curl-tool_cb_dbg.o:(tool_debug_cb)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cb_hdr.c:164
>>>               curl-tool_cb_hdr.o:(tool_header_cb)

ld: error: undefined symbol: curl_dbg_malloc
>>> referenced by tool_cb_hdr.c:217
>>>               curl-tool_cb_hdr.o:(parse_filename)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cb_hdr.c:242
>>>               curl-tool_cb_hdr.o:(parse_filename)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cb_hdr.c:254
>>>               curl-tool_cb_hdr.o:(parse_filename)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cb_hdr.c:292
>>>               curl-tool_cb_hdr.o:(parse_filename)

ld: error: undefined symbol: curl_dbg_strdup
>>> referenced by tool_cb_hdr.c:293
>>>               curl-tool_cb_hdr.o:(parse_filename)

ld: error: undefined symbol: curl_dbg_fdopen
>>> referenced by tool_cb_wrt.c:80
>>>               curl-tool_cb_wrt.o:(tool_create_output_file)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cb_wrt.c:84
>>>               curl-tool_cb_wrt.o:(tool_create_output_file)

ld: error: undefined symbol: curl_dbg_fopen
>>> referenced by tool_cb_wrt.c:88
>>>               curl-tool_cb_wrt.o:(tool_create_output_file)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cfgable.c:53
>>>               curl-tool_cfgable.o:(free_config_fields)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cfgable.c:54
>>>               curl-tool_cfgable.o:(free_config_fields)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cfgable.c:55
>>>               curl-tool_cfgable.o:(free_config_fields)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cfgable.c:56
>>>               curl-tool_cfgable.o:(free_config_fields)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cfgable.c:57
>>>               curl-tool_cfgable.o:(free_config_fields)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cfgable.c:58
>>>               curl-tool_cfgable.o:(free_config_fields)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cfgable.c:59
>>>               curl-tool_cfgable.o:(free_config_fields)

ld: error: undefined symbol: curl_dbg_free
>>> referenced by tool_cfgable.c:61
>>>               curl-tool_cfgable.o:(free_config_fields)

ld: error: too many errors emitted, stopping now (use -error-limit=0 to see all errors)
collect2: ld returned 1 exit status
*** Error 1 in target 'curl'
*** Error 1 in src (Makefile:984 'curl': @echo "  CCLD    " curl;/bin/sh ../libtool --silent --tag=CC    --mode=link gcc  -Werror-implicit-f...)
*** Error 1 in src (Makefile:2145 'all-recursive')
*** Error 1 in /home/eengler/curl (Makefile:1015 'all-recursive')

I expected the following

No linking errors

curl/libcurl version

259a815

operating system

OpenBSD openbsd.fritz.box 6.7 GENERIC#5 amd64

@bagder bagder added the build label Aug 26, 2020
@bagder
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bagder commented Aug 26, 2020

It looks like it didn't build/link with memdebug.o ?

@emilengler
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emilengler commented Aug 26, 2020

openbsd$ ls lib | grep memdebug
libcurl_la-memdebug.lo
libcurl_la-memdebug.o
libcurlu_la-memdebug.lo
libcurlu_la-memdebug.o
memdebug.c
memdebug.h

@emilengler
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emilengler commented Aug 26, 2020

FYI: All tests compile fine on OpenBSD and memdebug is also used there

@ajacoutot
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ajacoutot commented Aug 27, 2020

Hi folks.

This is most probably due to using the bundled libtool(1); you should use the OS provided one.
i.e.

$ make LIBTOOL=/usr/bin/libtool
<...>
$ ./src/curl --version
curl 7.73.0-DEV (x86_64-unknown-openbsd6.7) libcurl/7.73.0-DEV LibreSSL/3.2.1 zlib/1.2.3 libidn2/2.3.0 nghttp2/1.41.0
Release-Date: [unreleased]
Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp 
Features: AsynchDNS Debug HTTP2 HTTPS-proxy IDN IPv6 Largefile libz NTLM NTLM_WB SSL TrackMemory UnixSockets

GNU libtool is totally unmaintained as far as OpenBSD support is concerned.

@emilengler
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emilengler commented Aug 27, 2020

@ajacoutot Thanks, works now :-)

I'm curious if we should add a note to the documentation, especially here

@bagder
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bagder commented Aug 27, 2020

Yeah, I'm just afraid nobody who'd run into this issue would look there for the answer.

Maybe we could have the --enable-debug magic in configure detect OpenBSD itself and take care of it automatically.

I'm curious though why libtool would cause a problem with the memdebug stuff like that. With a little more research into that we could possibly think of a way we could make it work without the system libtool trick.

emilengler added a commit to emilengler/curl that referenced this issue Sep 30, 2020
bagder pushed a commit that referenced this issue Sep 30, 2020
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