Date: Wed, 8 Apr 2026 11:02:07 +0200
From: Matthias Apitz <guru@unixarea.de>
To: Tom Lane <tgl@sss.pgh.pa.us>, pgsql-general@lists.postgresql.org
Subject: Re: configure && --with
Message-ID: <adYZj2yREZN2YJRg@pureos>
Reply-To: Matthias Apitz <guru@unixarea.de>
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El día miércoles, abril 08, 2026 a las 08:57:24 +0200, Matthias Apitz escribió:

> Thanks for your hints. I do use now:
> 
> $ ./configure --prefix=/usr/local/sisis-pap/pgsql-18.3 \
>         --libdir=/usr/local/sisis-pap/pgsql-18.3/lib \
>         --with-includes=/usr/local/sisis-pap/include \
>         --with-libraries=/usr/local/sisis-pap/lib \
>         --enable-nls \
>         --with-perl \
>         --with-ldap \
>         --with-pam \
>         --without-icu \
>         --with-openssl
> 
> but it still says in config.log
> 
> ...
> configure:14192: checking for openssl
> configure:14210: found /usr/local/sisis-pap/bin/openssl
> configure:14222: result: /usr/local/sisis-pap/bin/openssl
> configure:14242: using openssl: openssl not found
> configure:14245: checking openssl/ssl.h usability
> configure:14245: gcc -c -Wall -Wmissing-prototypes -Wpointer-arith
> -Wdeclaration-after-statement -Werror=vla -Wendif-labels
> -Wmissing-format-attribute -Wimplicit-fallthrough=3
> -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv
> -fexcess-precision=standard -Wno-format-truncation -m64
> -I/usr/local/sisis-pap/include -m64 -I/usr/local/sisis-pap/include
> -D_GNU_SOURCE  -I/usr/local/sisis-pap/include conftest.c >&5
> configure:14245: $? = 0
> configure:14245: result: yes
> ...
> 
> The libs are in the correct place:
> 
> 
> $ ls /usr/local/sisis-pap/lib/libs*
> /usr/local/sisis-pap/lib/libssl.a   /usr/local/sisis-pap/lib/libssl.so.3
> /usr/local/sisis-pap/lib/libssl.so
> $ ls /usr/local/sisis-pap/lib/libcr*
> /usr/local/sisis-pap/lib/libcrypto.a   /usr/local/sisis-pap/lib/libcrypto.so.3
> /usr/local/sisis-pap/lib/libcrypto.so
> 

I run the full ./configure below strace(1) and it turns out what I was
especting:

$ grep -n execve tr | grep bin/openssl
518130:1081  execve("/usr/local/sisis-pap/bin/openssl", ["/usr/local/sisis-pap/bin/openssl", "version"], 0x560886d493e0 /* 78 vars */) = 0

now looking for the PID 1081 only and the fetched libs:

grep ^1081 tr | grep openat | egrep '/libssl|/libcry'
1081  openat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v3/libssl.so.3", O_RDONLY|O_CLOEXEC) = -1 ENOENT (Datei oder Verzeichnis nicht gefunden)
1081  openat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v2/libssl.so.3", O_RDONLY|O_CLOEXEC) = -1 ENOENT (Datei oder Verzeichnis nicht gefunden)
1081  openat(AT_FDCWD, "/usr/lib64/libssl.so.3", O_RDONLY|O_CLOEXEC) = 3
1081  openat(AT_FDCWD, "/usr/lib64/libcrypto.so.3", O_RDONLY|O_CLOEXEC) = 3

i.e. /usr/local/sisis-pap/bin/openssl does not pick-up its libs where it
should, while with a correct LD_LIBRARY_PATH is does it fine:

$ LD_LIBRARY_PATH=/usr/local/sisis-pap/lib strace /usr/local/sisis-pap/bin/openssl -v 2>&1 | grep libssl
openat(AT_FDCWD, "/usr/local/sisis-pap/lib/glibc-hwcaps/x86-64-v3/libssl.so.3", O_RDONLY|O_CLOEXEC) = -1 ENOENT (Datei oder Verzeichnis nicht gefunden)
openat(AT_FDCWD, "/usr/local/sisis-pap/lib/glibc-hwcaps/x86-64-v2/libssl.so.3", O_RDONLY|O_CLOEXEC) = -1 ENOENT (Datei oder Verzeichnis nicht gefunden)
openat(AT_FDCWD, "/usr/local/sisis-pap/lib/libssl.so.3", O_RDONLY|O_CLOEXEC) = 3
sisis@srap51dxr1:~/mpi-V73-sp2> LD_LIBRARY_PATH=/usr/local/sisis-pap/lib strace /usr/local/sisis-pap/bin/openssl -v 2>&1 | egrep 'libssl|libcry'
openat(AT_FDCWD, "/usr/local/sisis-pap/lib/glibc-hwcaps/x86-64-v3/libssl.so.3", O_RDONLY|O_CLOEXEC) = -1 ENOENT (Datei oder Verzeichnis nicht gefunden)
openat(AT_FDCWD, "/usr/local/sisis-pap/lib/glibc-hwcaps/x86-64-v2/libssl.so.3", O_RDONLY|O_CLOEXEC) = -1 ENOENT (Datei oder Verzeichnis nicht gefunden)
openat(AT_FDCWD, "/usr/local/sisis-pap/lib/libssl.so.3", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/usr/local/sisis-pap/lib/libcrypto.so.3", O_RDONLY|O_CLOEXEC) = 3

-- 
Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub

Annalena Baerbock: "We are fighting a war against Russia ..." (25.1.2023)

I, Matthias, I am not at war with Russia.
Я не воюю с Россией.
Ich bin nicht im Krieg mit Russland.