Hi

While building Slony1-2.2.3 tarball on Linux against PG9.4, I observed that
the configure failed for the following reason:-

--
configure:5703: checking for pgport
configure:5729: gcc -o conftest -g -O2
-I/mnt/hgfs/pginstaller/server/staging/linux-x64/include/postgresql/server/
 -L/mnt/hgfs/pginstaller/server/staging/linux-x64/lib/ conftest.c
 -lpgcommon >&5
configure:5729: $? = 0
configure:5731: result: yes
configure:5763: *gcc -o conftest -g -O2
-I/mnt/hgfs/pginstaller/server/staging/linux-x64/include/postgresql/server/
 -L/mnt/hgfs/pginstaller/server/staging/linux-x64/lib/ conftest.c  -lpgport
 -lpgcommon* >&5
/mnt/hgfs/pginstaller/server/staging/linux-x64/lib//libpgcommon.a(exec.o):
In function `resolve_symlinks':
exec.c:(.text+0x1a6): undefined reference to `last_dir_separator'
exec.c:(.text+0x1f5): undefined reference to `strlcpy'
exec.c:(.text+0x219): undefined reference to `join_path_components'
exec.c:(.text+0x221): undefined reference to `canonicalize_path'
/mnt/hgfs/pginstaller/server/staging/linux-x64/lib//libpgcommon.a(exec.o):
In function `find_my_exec':
exec.c:(.text+0x36d): undefined reference to `first_dir_separator'
exec.c:(.text+0x38c): undefined reference to `join_path_components'
exec.c:(.text+0x394): undefined reference to `canonicalize_path'
exec.c:(.text+0x474): undefined reference to `first_path_var_separator'
exec.c:(.text+0x4c3): undefined reference to `join_path_components'
exec.c:(.text+0x4d1): undefined reference to `join_path_components'
exec.c:(.text+0x4d9): undefined reference to `canonicalize_path'
exec.c:(.text+0x552): undefined reference to `join_path_components'
/mnt/hgfs/pginstaller/server/staging/linux-x64/lib//libpgcommon.a(exec.o):
In function `set_pglocale_pgservice':
exec.c:(.text+0x620): undefined reference to `get_etc_path'
exec.c:(.text+0x641): undefined reference to `canonicalize_path'
/mnt/hgfs/pginstaller/server/staging/linux-x64/lib//libpgcommon.a(exec.o):
In function `find_other_exec':
exec.c:(.text+0x6c1): undefined reference to `last_dir_separator'
exec.c:(.text+0x6cc): undefined reference to `canonicalize_path'
collect2: ld returned 1 exit status
--

$ nm -oA server/staging/linux-x64/lib/libpg* | grep last_dir_separator
server/staging/linux-x64/lib/libpgcommon.a:exec.o:                 U
last_dir_separator
server/staging/linux-x64/lib/libpgport.a:path.o:0000000000000070 T
last_dir_separator

So, I'm wondering why do we see undefined symbol even though pgport lib is
 included in the linking

-- 
Sandeep Thakkar
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