<- Ranking
Summary
Task
curl-ssl
Model
gpt-5-mini-high logo
gpt-5-mini-high
Status
Success
Performance
Cost$0.032
Total elapsed time3m50s
LLM inference time3m8s
Command execution time42s
Commands executed19
All details >
Attempt ID alq42fopv2rty Attempt group run-16-09-22-05
Revision fb5c74bd2fee AWS Instance m8i.2xlarge
Start time 2025-09-16T21:47:23.416Z End time 2025-09-16T21:51:15.732Z
Task curl-ssl Environment ubuntu-22.04-amd64
Model gpt-5-mini-high logo gpt-5-mini-high OpenRouter slug openai/gpt-5-mini
Temperature 1 Explicit prompt caching false
User msg after tool call false Max tool calls 70
Total timeout seconds 900 Single command timeout 600
Cost $0.032 Duration 3m50s
LLM inference time 3m8s Command execution time 42s
Final context tokens 19,177 Total output tokens 5,279
Output reasoning tokens 3,904 Messages 41
Assistant messages 20 User messages 1
System messages 1 Commands executed 19
Download full attempt result JSON
Task
Task: curl-ssl

curl 8.16.0 is a command-line HTTP client.
Project link: curl.se

Task:
Compile and install curl to a specific location. Build with SSL support (TLS v1.3), brotli, zlib and zstd.

Difficulties:
Installing dependencies can be tricky.

Environment:
Ubuntu 22.04 on amd64, with internet access.

View task page
Execution log
SYSTEM

You are a package-building specialist operating a Ubuntu 22.04 bash shell via one tool: run_terminal_cmd.
The current working directory of every run_terminal_cmd is /home/peter.
Execution rules:
- Always pass non-interactive flags for any command that could prompt (e.g., -y, --yes, DEBIAN_FRONTEND=noninteractive).
- Don't include any newlines in the command.
- You can use sudo.
If you encounter any errors or issues while doing the user's request, you must fix them and continue the task.
At the end verify you did the user request correctly.

USER

You are given a curl v8.16.0 source code at /home/peter/curl.tar.gz. Please compile curl and install it to /home/peter/result. Create a symlink from /home/peter/result/curl to the actual binary. Make sure it builds with SSL support (TLS v1.3), brotli, zlib and zstd.

ASSISTANT
Show reasoning

Inspecting tarball contents

The user provided version v8.16.0, so it's probably valid. I'll need to check the tarball contents by using the terminal command to list everything inside. First, I’ll run apt-get update and install the necessary packages before extracting the tarball.

Next, I’ll configure with various options to ensure we get the correct build. After that, I'll run make and make install. Finally, I’ll create a symlink and verify TLS v1.3 support using curl --version.Configuring curl with libraries

I need to check if curl has built-in brotli support, which might require options like --with-brotli or --with-libbrotli. I’ll look into the configure options using ./configure --help. For SSL support, I’ll use --with-ssl and direct it to OpenSSL.

I'll focus on checking the tarball contents to find the configure script. First, I should run apt-get update and install the necessary packages, ensuring to pass the -y flag where required since it avoids prompts.Selecting installation packages

I need to choose the right packages for the build, including essentials like build-essential, pkg-config, autoconf, automake, and others. However, I don't think I need libcurl or libssh-dev, and git might be useful, but it's not necessary.

I’ll go ahead to install the packages with a single command for efficiency, ensuring apt-get update doesn't require the -y flag, while keeping it all on one line using chaining. It looks like the packages I need are all available on Ubuntu 22.04.Crafting the installation command

I’m preparing the installation command using apt-get with non-interactive options. I'll include all the necessary packages like build-essential, pkg-config, and others, making sure everything is set for the installation process.

Next, I’ll extract the tarball by navigating to the correct directory. I need to check the directory structure after extraction to pinpoint the correct folder name. To do that, I’ll run a command to see the files inside the tarball and handle any errors as they come up, keeping it all as one command string.

compile-bench> sudo DEBIAN_FRONTEND=noninteractive apt-get update -y && sudo DEBIAN_FRONTEND=noninteractive apt-get install -y build-essential pkg-config autoconf automake libtool ca-certificates libssl-dev libbrotli-dev libzstd-dev zlib1g-dev libnghttp2-dev wget ca-certificates git curl
0% [Working]
            
Get:1 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB]

0% [Waiting for headers] [1 InRelease 14.2 kB/129 kB 11%]
                                                         
Hit:2 http://archive.ubuntu.com/ubuntu jammy InRelease

0% [Waiting for headers] [1 InRelease 14.2 kB/129 kB 11%]
0% [Waiting for headers] [1 InRelease 14.2 kB/129 kB 11%]
                                                         
Get:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB]

0% [3 InRelease 12.7 kB/128 kB 10%] [1 InRelease 25.8 kB/129 kB 20%]
                                                                    
0% [3 InRelease 59.1 kB/128 kB 46%]
0% [3 InRelease 82.2 kB/128 kB 64%]
0% [Waiting for headers] [Waiting for headers]
                                              
Get:4 http://security.ubuntu.com/ubuntu jammy-security/multiverse amd64 Packages [80.3 kB]

0% [Waiting for headers] [4 Packages 2658 B/80.3 kB 3%]
0% [Waiting for headers] [4 Packages 36.0 kB/80.3 kB 45%]
                                                         
0% [Waiting for headers]
0% [4 Packages store 0 B] [Waiting for headers] [Waiting for headers]
                                                                     
0% [Waiting for headers] [Waiting for headers]
                                              
Get:5 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB]

0% [5 InRelease 2588 B/127 kB 2%] [Waiting for headers]
                                                       
Get:6 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [3311 kB]

0% [5 InRelease 124 kB/127 kB 98%] [6 Packages 2655 B/3311 kB 0%]
                                                                 
0% [6 Packages 9895 B/3311 kB 0%]
20% [Waiting for headers] [6 Packages 92.4 kB/3311 kB 3%]
                                                         
Get:7 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [3626 kB]

21% [7 Packages 2655 B/3626 kB 0%] [6 Packages 192 kB/3311 kB 6%]
                                                                 
45% [7 Packages 1643 kB/3626 kB 45%] [Waiting for headers]
                                                          
Get:8 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1274 kB]

45% [7 Packages 1643 kB/3626 kB 45%] [8 Packages 4665 B/1274 kB 0%]
45% [6 Packages store 0 B] [7 Packages 1643 kB/3626 kB 45%] [8 Packages 4665 B/
54% [6 Packages store 0 B] [7 Packages 2238 kB/3626 kB 62%] [Waiting for header
                                                                               
Get:9 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [5441 kB]

54% [6 Packages store 0 B] [7 Packages 2238 kB/3626 kB 62%] [9 Packages 20.5 kB
                                                                               
76% [7 Packages 3518 kB/3626 kB 97%] [9 Packages 2880 kB/5441 kB 53%]
76% [8 Packages store 0 B] [7 Pack
[command output truncated]
d64 (2.72.4-0ubuntu2.6) ...
No schema files found: doing nothing.
Setting up libcbor0.8:amd64 (0.8.0-2ubuntu1) ...
Setting up less (590-1ubuntu0.22.04.3) ...
Setting up libcurl3-gnutls:amd64 (7.81.0-1ubuntu1.20) ...
Setting up liberror-perl (0.17029-1) ...
Setting up autotools-dev (20220109.1) ...
Setting up libglib2.0-data (2.72.4-0ubuntu2.6) ...
Setting up libx11-data (2:1.7.5-1ubuntu0.3) ...
Setting up libsigsegv2:amd64 (2.13-1ubuntu3) ...
Setting up libssl-dev:amd64 (3.0.2-0ubuntu1.19) ...
Setting up pkg-config (0.29.2-1ubuntu3) ...
Setting up libltdl7:amd64 (2.4.6-15build2) ...
Setting up zlib1g-dev:amd64 (1:1.2.11.dfsg-2ubuntu9.2) ...
Setting up libmd0:amd64 (1.0.4-1build1) ...
Setting up git-man (1:2.34.1-1ubuntu1.15) ...
Setting up libfido2-1:amd64 (1.10.0-1) ...
Setting up libbsd0:amd64 (0.11.5-1) ...
Setting up libbrotli-dev:amd64 (1.0.9-2build6) ...
Setting up libicu70:amd64 (70.1-2) ...
Setting up libnghttp2-dev (1.43.0-1ubuntu0.2) ...
Setting up libxdmcp6:amd64 (1:1.1.3-0ubuntu5) ...
Setting up libxcb1:amd64 (1.14-3ubuntu3) ...
Setting up libtool (2.4.6-15build2) ...
Setting up libedit2:amd64 (3.1-20210910-1build1) ...
Setting up m4 (1.4.18-5ubuntu2) ...
Setting up git (1:2.34.1-1ubuntu1.15) ...
Setting up autoconf (2.71-2) ...
Setting up libx11-6:amd64 (2:1.7.5-1ubuntu0.3) ...
Setting up libxml2:amd64 (2.9.13+dfsg-1ubuntu0.9) ...
Setting up libxmuu1:amd64 (2:1.1.3-3) ...
Setting up automake (1:1.16.5-1.3) ...
update-alternatives: using /usr/bin/automake-1.16 to provide /usr/bin/automake (automake) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/man1/automake.1.gz because associated file /usr/share/man/man1/automake-1.16.1.gz (of link group automake) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/aclocal.1.gz because associated file /usr/share/man/man1/aclocal-1.16.1.gz (of link group automake) doesn't exist
Setting up openssh-client (1:8.9p1-3ubuntu0.13) ...
update-alternatives: using /usr/bin/ssh to provide /usr/bin/rsh (rsh) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/man1/rsh.1.gz because associated file /usr/share/man/man1/ssh.1.gz (of link group rsh) doesn't exist
update-alternatives: using /usr/bin/slogin to provide /usr/bin/rlogin (rlogin) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/man1/rlogin.1.gz because associated file /usr/share/man/man1/slogin.1.gz (of link group rlogin) doesn't exist
update-alternatives: using /usr/bin/scp to provide /usr/bin/rcp (rcp) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/man1/rcp.1.gz because associated file /usr/share/man/man1/scp.1.gz (of link group rcp) doesn't exist
Setting up libxext6:amd64 (2:1.3.4-1build1) ...
Setting up libltdl-dev:amd64 (2.4.6-15build2) ...
Setting up shared-mime-info (2.1-2) ...
Setting up xauth (1:1.1-1build2) ...
Processing triggers for libc-bin (2.35-0ubuntu3.10) ...
↓ 59 lines
ASSISTANT
Show reasoning

Inspecting tarball contents

I've finished the installation, and the next logical step is to inspect the tarball. I want to list the contents efficiently without getting any newlines in my output. The command I'll use is: tar -tzf /home/peter/curl.tar.gz | head -n 20. Alright, time to run this command and see what’s inside! Let's make sure everything looks good!

compile-bench> tar -tzf /home/peter/curl.tar.gz | sed -n '1,20p'
curl-8.16.0/
curl-8.16.0/.editorconfig
curl-8.16.0/CHANGES.md
curl-8.16.0/CMake/
curl-8.16.0/CMake/CMakeConfigurableFile.in
curl-8.16.0/CMake/CurlSymbolHiding.cmake
curl-8.16.0/CMake/CurlTests.c
curl-8.16.0/CMake/FindBrotli.cmake
curl-8.16.0/CMake/FindCares.cmake
curl-8.16.0/CMake/FindGSS.cmake
curl-8.16.0/CMake/FindLDAP.cmake
curl-8.16.0/CMake/FindLibgsasl.cmake
curl-8.16.0/CMake/FindLibidn2.cmake
curl-8.16.0/CMake/FindLibpsl.cmake
curl-8.16.0/CMake/FindLibrtmp.cmake
curl-8.16.0/CMake/FindLibssh.cmake
curl-8.16.0/CMake/FindLibssh2.cmake
curl-8.16.0/CMake/FindLibuv.cmake
curl-8.16.0/CMake/FindMbedTLS.cmake
curl-8.16.0/CMake/FindNGHTTP2.cmake
↓ 21 lines
ASSISTANT
Show reasoning

Checking project structure

It seems like the project includes a CMake directory, which means it's CMake-based. However, there might also be an older autoconf setup present. I should check the top-level directory to confirm this. I can use the command 'ls curl-8.16.0 -la' to list its contents or look for a 'configure' file. Let's see if that helps clarify the project's setup!

compile-bench> ls -la curl-8.16.0 | sed -n '1,200p'
ls: cannot access 'curl-8.16.0': No such file or directory
ASSISTANT
Show reasoning

Extracting tar file

I see that the tar extraction isn't complete yet, and I need to extract the contents of curl.tar.gz. The path listed is curl-8.16.0/, but nothing's been extracted yet. I know the command to use is tar -xzf /home/peter/curl.tar.gz -C /home/peter. So, it's time to run that command and get everything extracted! Let's see how it goes.

compile-bench> tar -xzf /home/peter/curl.tar.gz -C /home/peter
[empty output]
ASSISTANT
compile-bench> ls -la /home/peter | sed -n '1,200p'
total 4108
drwxr-x---  1 peter peter    4096 Sep 16 21:48 .
drwxr-xr-x  1 root  root     4096 Sep 15 11:21 ..
-rw-r--r--  1 peter peter     220 Jan  6  2022 .bash_logout
-rw-r--r--  1 peter peter    3771 Jan  6  2022 .bashrc
-rw-r--r--  1 peter peter     807 Jan  6  2022 .profile
drwxr-xr-x 14 peter peter    4096 Sep 10 05:43 curl-8.16.0
-rw-r--r--  1 peter peter 4176617 Sep 16 21:47 curl.tar.gz
↓ 9 lines
ASSISTANT
compile-bench> ls -la /home/peter/curl-8.16.0 | sed -n '1,200p'
total 2312
drwxr-xr-x 14 peter peter    4096 Sep 10 05:43 .
drwxr-x---  1 peter peter    4096 Sep 16 21:48 ..
-rw-r--r--  1 peter peter     284 Sep 10 05:43 .editorconfig
-rw-r--r--  1 peter peter     438 Sep 10 05:43 CHANGES.md
drwxr-xr-x  2 peter peter    4096 Sep 10 05:43 CMake
-rw-r--r--  1 peter peter   92961 Sep 10 05:43 CMakeLists.txt
-rw-r--r--  1 peter peter    1088 Sep 10 05:43 COPYING
-rw-r--r--  1 peter peter    1712 Sep 10 05:43 Dockerfile
-rw-r--r--  1 peter peter    6930 Sep 10 05:43 Makefile.am
-rw-r--r--  1 peter peter   39602 Sep 10 05:43 Makefile.in
-rw-r--r--  1 peter peter    1664 Sep 10 05:43 README
-rw-r--r--  1 peter peter   28109 Sep 10 05:43 RELEASE-NOTES
-rw-r--r--  1 peter peter   44196 Sep 10 05:43 acinclude.m4
-rw-r--r--  1 peter peter   45838 Sep 10 05:43 aclocal.m4
-rwxr-xr-x  1 peter peter    7400 Sep 10 05:43 compile
-rwxr-xr-x  1 peter peter   49482 Sep 10 05:43 config.guess
-rwxr-xr-x  1 peter peter   35406 Sep 10 05:43 config.sub
-rwxr-xr-x  1 peter peter 1349020 Sep 10 05:43 configure
-rw-r--r--  1 peter peter  166752 Sep 10 05:43 configure.ac
-rw-r--r--  1 peter peter    4778 Sep 10 05:43 curl-config.in
-rwxr-xr-x  1 peter peter   23568 Sep 10 05:43 depcomp
drwxr-xr-x  7 peter peter    4096 Sep 10 05:43 docs
drwxr-xr-x  3 peter peter    4096 Sep 10 05:43 include
-rwxr-xr-x  1 peter peter   15358 Sep 10 05:43 install-sh
drwxr-xr-x  7 peter peter   12288 Sep 10 05:43 lib
-rw-r--r--  1 peter peter    1586 Sep 10 05:43 libcurl.pc.in
-rwxr-xr-x  1 peter peter  333057 Sep 10 05:43 ltmain.sh
drwxr-xr-x  2 peter peter    4096 Sep 10 05:43 m4
-rwxr-xr-x  1 peter peter    6878 Sep 10 05:43 missing
drwxr-xr-x  4 peter peter    4096 Sep 10 05:43 packages
drwxr-xr-x  5 peter peter    4096 Sep 10 05:43 plan9
drwxr-xr-x  2 peter peter    4096 Sep 10 05:43 projects
drwxr-xr-x  2 peter peter    4096 Sep 10 05:43 scripts
drwxr-xr-x  2 peter peter    4096 Sep 10 05:43 src
drwxr-xr-x 10 peter peter    4096 Sep 10 05:43 tests
drwxr-xr-x  2 peter peter    4096 Sep 10 05:43 winbuild
↓ 38 lines
ASSISTANT
compile-bench> cd /home/peter/curl-8.16.0 && ./configure --help | sed -n '1,200p'
`configure' configures curl - to adapt to many kinds of systems.

Usage: ./configure [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print `checking ...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for `--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or `..']

Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [/usr/local]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [PREFIX]

By default, `make install' will install all the files in
`/usr/local/bin', `/usr/local/lib' etc.  You can specify
an installation prefix other than `/usr/local' using `--prefix',
for instance `--prefix=$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/curl]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]

Program names:
  --program-prefix=PREFIX            prepend PREFIX to installed program names
  --program-suffix=SUFFIX            append SUFFIX to installed program names
  --program-
[command output truncated]
enable-docs           Enable documentation
  --disable-docs          Disable documentation
  --enable-libcurl-option Enable --libcurl C code generation support
  --disable-libcurl-option
                          Disable --libcurl C code generation support
  --enable-libgcc         use libgcc when linking
  --enable-ipv6           Enable IPv6 (with IPv4) support
  --disable-ipv6          Disable IPv6 support
  --enable-openssl-auto-load-config
                          Enable automatic loading of OpenSSL configuration
  --disable-openssl-auto-load-config
                          Disable automatic loading of OpenSSL configuration
  --enable-ca-search      Enable unsafe CA bundle search in PATH on Windows
                          (default)
  --disable-ca-search     Disable unsafe CA bundle search in PATH on Windows
  --enable-ca-search-safe Enable safe CA bundle search
  --disable-ca-search-safe
                          Disable safe CA bundle search (default)
  --enable-versioned-symbols
                          Enable versioned symbols in shared library
  --disable-versioned-symbols
                          Disable versioned symbols in shared library
  --enable-windows-unicode
                          Enable Windows Unicode
  --disable-windows-unicode
                          Disable Windows Unicode (default)
  --enable-threaded-resolver
                          Enable threaded resolver
  --disable-threaded-resolver
                          Disable threaded resolver
  --enable-verbose        Enable verbose strings
  --disable-verbose       Disable verbose strings
  --enable-sspi           Enable SSPI
    --disable-sspi          Disable SSPI
  --enable-basic-auth     Enable basic authentication (default)
  --disable-basic-auth    Disable basic authentication
  --enable-bearer-auth    Enable bearer authentication (default)
  --disable-bearer-auth   Disable bearer authentication
  --enable-digest-auth    Enable digest authentication (default)
  --disable-digest-auth   Disable digest authentication
  --enable-kerberos-auth  Enable kerberos authentication (default)
  --disable-kerberos-auth Disable kerberos authentication
  --enable-negotiate-auth Enable negotiate authentication (default)
  --disable-negotiate-auth
                          Disable negotiate authentication
  --enable-aws            Enable AWS sig support (default)
  --disable-aws           Disable AWS sig support
  --enable-ntlm           Enable NTLM support
  --disable-ntlm          Disable NTLM support
  --enable-tls-srp        Enable TLS-SRP authentication
  --disable-tls-srp       Disable TLS-SRP authentication
  --enable-unix-sockets   Enable Unix domain sockets
  --disable-unix-sockets  Disable Unix domain sockets
  --enable-cookies        Enable cookies support
  --disable-cookies       Disable cookies support
  --enable-socketpair     Enable socketpair support
  --disable-socketpair    Disable socketpair support
↓ 118 lines
ASSISTANT
Show reasoning

Configuring compression options

I’m looking at configuring options for brotli and zstd. The help documentation offers various configurations. To clarify what’s available, I’d like to search for 'brotli' or 'zstd' within the help files using grep. This should give me a more targeted view of the options I can set. It’s important to get this right to ensure everything functions optimally! Let’s dive in and see what I can find.

compile-bench> cd /home/peter/curl-8.16.0 && ./configure --help | grep -i -E "brotli|zstd|zlib|ssl|openssl|with-ssl|with-brotli|with-zstd|with-zlib" -n || true
93:  --enable-ssls-export    Enable SSL session export support
94:  --disable-ssls-export   Disable SSL session export support
152:  --enable-openssl-auto-load-config
153:                          Enable automatic loading of OpenSSL configuration
154:  --disable-openssl-auto-load-config
155:                          Disable automatic loading of OpenSSL configuration
238:  --with-schannel         enable Windows native SSL/TLS
239:  --with-amissl           enable Amiga native SSL/TLS (AmiSSL)
240:  --with-ssl=PATH         old version of --with-openssl
241:  --without-ssl           build without any TLS library
242:  --with-openssl=PATH     Where to look for OpenSSL, PATH points to the SSL
243:                          installation (default: /usr/local/ssl); when
250:  --with-wolfssl=PATH     where to look for wolfSSL, PATH points to the
269:  --with-zlib=PATH        search for zlib in PATH
270:  --without-zlib          disable use of zlib
271:  --with-brotli=PATH      Where to look for brotli, PATH points to the BROTLI
274:  --without-brotli        disable BROTLI
275:  --with-zstd=PATH        Where to look for libzstd, PATH points to the
276:                          libzstd installation; when possible, set the
279:  --without-zstd          disable libzstd
284:  --with-default-ssl-backend=NAME
285:                          Use NAME as default SSL backend
286:  --without-default-ssl-backend
287:                          Use implicit default SSL backend
295:                          with the OpenSSL, GnuTLS, mbedTLS and wolfSSL
296:                          backends. Refer to OpenSSL c_rehash for details.
299:  --with-ca-fallback      Use OpenSSL's built-in CA store
300:  --without-ca-fallback   Don't use OpenSSL's built-in CA store
345:  --with-openssl-quic     Enable OpenSSL QUIC usage
346:  --without-openssl-quic  Disable OpenSSL QUIC usage
↓ 31 lines
ASSISTANT
Show reasoning

Testing SSL and TLS support

I'm considering how to verify the TLS support in curl. It looks like running 'curl --version' might show the SSL list, but not specifically the TLS version. I could instead try 'curl -V' to check the output, though I'm still unsure if that will help.

Another option is testing a connection that requires TLS 1.3 to see if the handshake works. I want to ensure I'm using OpenSSL for this build. Let's run the configuration with the right options!

compile-bench> cd /home/peter/curl-8.16.0 && ./configure --prefix=/home/peter/result --with-openssl=/usr --with-zlib=/usr --with-brotli=/usr --with-zstd=/usr
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether make supports nested variables... yes
checking whether to enable debug build options... no
checking whether to enable compiler optimizer... (assumed) yes
checking whether to enable strict compiler warnings... no
checking whether to enable compiler warnings as errors... no
checking whether to enable curl debug memory tracking... no
checking whether to enable hiding of library internal symbols... yes
checking whether to enable c-ares for DNS lookups... no
checking whether to disable dependency on -lrt... (assumed no)
checking whether to enable HTTPSRR support... no
checking whether to enable ECH support... no
checking whether to enable SSL session export support... no
checking for path separator... :
checking for sed... /usr/bin/sed
checking for grep... /usr/bin/grep
checking that grep -E works... yes
checking for ar... /usr/bin/ar
checking for a BSD-compatible install... /usr/bin/install -c
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether gcc accepts -g... yes
checking for gcc option to enable C11 features... none needed
checking whether gcc understands -c and -o together... yes
checking how to run the C preprocessor... gcc -E
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for stdatomic.h... yes
checking if _Atomic is available... yes
checking for a sed that does not truncate output... (cached) /usr/bin/sed
checking for code coverage support... no
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /usr/bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether make supports the include directive... yes (GNU style)
checking dependency style of gcc... gcc3
checking curl version... 8.16.0
checking for perl... /usr/bin/perl
checking for httpd... no
checking for apache2... no
checking for apxs... no
configure: httpd/apache2 not in PATH, http tests disabled
configure: apxs not in PATH, http tests disabled
checking for danted... no
checking for danted... no
checking for nghttpx... no
checking for caddy... no
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for grep that handles long lines and -e... (cached) /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking if OS is AIX (to define _ALL_SOURCE)... no
checking if _THREAD_SAFE is already defin
[command output truncated]
elnet... yes
checking whether to support tftp... yes
checking whether to support pop3... yes
checking whether to support imap... yes
checking whether to support smb... yes
checking whether to support smtp... yes
checking whether to support gopher... yes
checking whether to support mqtt... no
checking whether to provide built-in manual... yes
checking whether to build documentation... yes
checking whether to enable generation of C code... yes
checking whether to use libgcc... no
checking if X/Open network library is required... no
checking for gethostbyname... yes
checking whether build target is a native Windows one... (cached) no
checking for proto/bsdsocket.h... no
checking for connect in libraries... yes
checking for sys/types.h... (cached) yes
checking for monotonic clock_gettime... yes
checking for clock_gettime in libraries... no additional lib required
checking if monotonic clock_gettime works... yes
checking for sys/types.h... (cached) yes
checking for raw monotonic clock_gettime... yes
checking for zlib.h... yes
checking for gzread in -lz... yes
configure: found both libz and libz.h header
checking for BrotliDecoderDecompress in -lbrotlidec... yes
checking for brotli/decode.h... yes
configure: Added /usr/lib to CURL_LIBRARY_PATH
checking for ZSTD_createDStream in -lzstd... yes
checking for zstd.h... yes
configure: Added /usr/lib to CURL_LIBRARY_PATH
checking whether to enable IPv6... yes
checking if struct sockaddr_in6 has sin6_scope_id member... yes
checking if argv can be written to... yes
checking if GSS-API support is requested... no
checking whether to enable Windows native SSL/TLS... no
checking whether to enable Amiga native SSL/TLS (AmiSSL v5)... no
checking for HMAC_Update in -lcrypto... yes
checking for SSL_connect in -lssl... yes
checking for openssl/x509.h... yes
checking for openssl/rsa.h... yes
checking for openssl/crypto.h... yes
checking for openssl/pem.h... yes
checking for openssl/ssl.h... yes
checking for openssl/err.h... yes
checking for BoringSSL... no
checking for AWS-LC... no
checking for LibreSSL... no
checking for OpenSSL >= v3... yes
checking for SSL_set_quic_use_legacy_codepoint... no
checking for SSL_set_quic_tls_cbs... no
configure: OpenSSL version does not speak any known QUIC API
configure: Added /usr/lib to CURL_LIBRARY_PATH
checking for SRP support in OpenSSL... yes
checking for QUIC support and OpenSSL >= 3.3... no
configure: built with one SSL backend
checking default CA cert bundle/path... configure: want unset ca /etc/ssl/certs/ca-certificates.crt
/etc/ssl/certs/ca-certificates.crt
/etc/ssl/certs (capath)
checking whether to use OpenSSL's built-in CA store... no
checking CA cert bundle path to embed in the curl tool... no
checking for pkg-config... /usr/bin/pkg-config
checking for libpsl options with pkg-config... no
checking for psl_builtin in -lpsl... no
configure: error: libpsl libs and/or directories were not found where specified!
↓ 135 lines
ASSISTANT
compile-bench> cd /home/peter/curl-8.16.0 && ./configure --help | grep -i psl -n || true
305:  --with-libpsl=PATH      Where to look for libpsl, PATH points to the LIBPSL
308:  --without-libpsl        disable LIBPSL
↓ 3 lines
ASSISTANT
Show reasoning

Installing libpsl-dev

It seems like the default configuration wants to use libpsl, but it failed because it's not installed. I can install the libpsl-dev package, which is likely 'libpsl-dev' or 'libpsl5-dev'. For Ubuntu 22.04, the correct package is 'libpsl-dev'. I'll go ahead and run the command: apt-get install libpsl-dev -y. This should solve the issue, and then I can move forward with what I was trying to do!

compile-bench> sudo DEBIAN_FRONTEND=noninteractive apt-get install -y libpsl-dev
Reading package lists... 0%

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Reading package lists... 99%

Reading package lists... Done


Building dependency tree... 0%

Building dependency tree... 0%

Building dependency tree... 50%

Building dependency tree... 50%

Building dependency tree... Done


Reading state information... 0% 

Reading state information... 1%

Reading state information... Done

The following NEW packages will be installed:
  libpsl-dev
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 77.9 kB of archives.
After this operation, 214 kB of additional disk space will be used.

0% [Working]
            
Get:1 http://archive.ubuntu.com/ubuntu jammy/main amd64 libpsl-dev amd64 0.21.0-1.2build2 [77.9 kB]

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Fetched 77.9 kB in 0s (185 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package libpsl-dev:amd64.
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(Reading database ... 13075 files and directories currently installed.)
Preparing to unpack .../libpsl-dev_0.21.0-1.2build2_amd64.deb ...
Unpacking libpsl-dev:amd64 (0.21.0-1.2build2) ...
Setting up libpsl-dev:amd64 (0.21.0-1.2build2) ...
↓ 17 lines
ASSISTANT
Show reasoning

I'm thinking about running the configuration again with the same options. I recall that the configuration caches results, so I wonder if that will cause any issues. But since running configure again will re-execute the checks, it might be a good idea to do so to ensure everything is up to date. Okay, let's go ahead and rerun the configuration!

compile-bench> cd /home/peter/curl-8.16.0 && ./configure --prefix=/home/peter/result --with-openssl=/usr --with-zlib=/usr --with-brotli=/usr --with-zstd=/usr
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether make supports nested variables... yes
checking whether to enable debug build options... no
checking whether to enable compiler optimizer... (assumed) yes
checking whether to enable strict compiler warnings... no
checking whether to enable compiler warnings as errors... no
checking whether to enable curl debug memory tracking... no
checking whether to enable hiding of library internal symbols... yes
checking whether to enable c-ares for DNS lookups... no
checking whether to disable dependency on -lrt... (assumed no)
checking whether to enable HTTPSRR support... no
checking whether to enable ECH support... no
checking whether to enable SSL session export support... no
checking for path separator... :
checking for sed... /usr/bin/sed
checking for grep... /usr/bin/grep
checking that grep -E works... yes
checking for ar... /usr/bin/ar
checking for a BSD-compatible install... /usr/bin/install -c
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether gcc accepts -g... yes
checking for gcc option to enable C11 features... none needed
checking whether gcc understands -c and -o together... yes
checking how to run the C preprocessor... gcc -E
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for stdatomic.h... yes
checking if _Atomic is available... yes
checking for a sed that does not truncate output... (cached) /usr/bin/sed
checking for code coverage support... no
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /usr/bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether make supports the include directive... yes (GNU style)
checking dependency style of gcc... gcc3
checking curl version... 8.16.0
checking for perl... /usr/bin/perl
checking for httpd... no
checking for apache2... no
checking for apxs... no
configure: httpd/apache2 not in PATH, http tests disabled
configure: apxs not in PATH, http tests disabled
checking for danted... no
checking for danted... no
checking for nghttpx... no
checking for caddy... no
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for grep that handles long lines and -e... (cached) /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking if OS is AIX (to define _ALL_SOURCE)... no
checking if _THREAD_SAFE is already defin
[command output truncated]
tatus: creating tests/unit/Makefile
config.status: creating tests/tunit/Makefile
config.status: creating tests/http/config.ini
config.status: creating tests/http/Makefile
config.status: creating packages/Makefile
config.status: creating packages/vms/Makefile
config.status: creating libcurl.pc
config.status: creating curl-config
config.status: creating lib/curl_config.h
config.status: executing depfiles commands
config.status: executing libtool commands
configure: Configured to build curl/libcurl:

  Host setup:       x86_64-pc-linux-gnu
  Install prefix:   /home/peter/result
  Compiler:         gcc
   CFLAGS:          -Werror-implicit-function-declaration -O2 -Wno-system-headers
   CFLAGS extras:   
   CPPFLAGS:        -D_GNU_SOURCE -isystem /usr/include -isystem /usr/include -isystem /usr/include
   LDFLAGS:         -L/usr/lib -L/usr/lib -L/usr/lib
     curl-config:   -L/usr/lib -L/usr/lib
   LIBS:            -lnghttp2 -lpsl -lssl -lcrypto -lzstd -lzstd -lbrotlidec -lbrotlidec -lbrotlicommon -lz

  curl version:     8.16.0
  SSL:              enabled (OpenSSL v3+)
  SSH:              no      (--with-{libssh,libssh2})
  zlib:             enabled
  brotli:           enabled (libbrotlidec)
  zstd:             enabled (libzstd)
  GSS-API:          no      (--with-gssapi)
  GSASL:            no      (libgsasl not found)
  TLS-SRP:          enabled
  resolver:         POSIX threaded
  IPv6:             enabled
  Unix sockets:     enabled
  IDN:              no      (--with-{libidn2,winidn})
  Build docs:       enabled (--disable-docs)
  Build libcurl:    Shared=yes, Static=yes
  Built-in manual:  enabled
  --libcurl option: enabled (--disable-libcurl-option)
  Verbose errors:   enabled (--disable-verbose)
  Code coverage:    disabled
  SSPI:             no      (--enable-sspi)
  ca cert bundle:   /etc/ssl/certs/ca-certificates.crt
  ca cert path:     /etc/ssl/certs
  ca cert embed:    no
  ca fallback:      no
  LDAP:             no      (--enable-ldap / --with-ldap-lib / --with-lber-lib)
  LDAPS:            no      (--enable-ldaps)
  IPFS/IPNS:        enabled
  RTSP:             enabled
  RTMP:             no      (--with-librtmp)
  PSL:              enabled
  Alt-svc:          enabled (--disable-alt-svc)
  Headers API:      enabled (--disable-headers-api)
  HSTS:             enabled (--disable-hsts)
  HTTP1:            enabled (internal)
  HTTP2:            enabled (nghttp2)
  HTTP3:            no      (--with-ngtcp2 --with-nghttp3, --with-quiche, --with-openssl-quic)
  ECH:              no      (--enable-ech)
  HTTPS RR:         no      (--enable-httpsrr)
  SSLS-EXPORT:      no      (--enable-ssls-export)
  Protocols:        dict file ftp ftps gopher gophers http https imap imaps ipfs ipns mqtt pop3 pop3s rtsp smb smbs smtp smtps telnet tftp ws wss
  Features:         alt-svc AsynchDNS brotli HSTS HTTP2 HTTPS-proxy IPv6 Largefile libz NTLM PSL SSL threadsafe TLS-SRP UnixSockets zstd
↓ 133 lines
ASSISTANT
Show reasoning

Configuring the build

I see that the configuration succeeded, and it's good to know that SSL, brotli, zstd, and zlib are enabled. Now, I need to run the build command using make -j$(nproc). However, I have to be careful to ensure there are no interactive prompts during the process. So, I'll run make -j$(nproc) as planned and keep my fingers crossed for a smooth execution!

compile-bench> cd /home/peter/curl-8.16.0 && make -j$(nproc)
Making all in lib
make[1]: Entering directory '/home/peter/curl-8.16.0/lib'
make  all-am
make[2]: Entering directory '/home/peter/curl-8.16.0/lib'
  CC       libcurl_la-altsvc.lo
  CC       libcurl_la-amigaos.lo
  CC       libcurl_la-asyn-ares.lo
  CC       libcurl_la-asyn-base.lo
  CC       libcurl_la-asyn-thrdd.lo
  CC       libcurl_la-bufq.lo
  CC       libcurl_la-bufref.lo
  CC       libcurl_la-cf-h1-proxy.lo
  CC       libcurl_la-cf-h2-proxy.lo
  CC       libcurl_la-cf-haproxy.lo
  CC       libcurl_la-cf-https-connect.lo
  CC       libcurl_la-cf-ip-happy.lo
  CC       libcurl_la-cf-socket.lo
  CC       libcurl_la-cfilters.lo
  CC       libcurl_la-conncache.lo
  CC       libcurl_la-connect.lo
  CC       libcurl_la-content_encoding.lo
  CC       libcurl_la-cookie.lo
  CC       libcurl_la-cshutdn.lo
  CC       libcurl_la-curl_addrinfo.lo
  CC       libcurl_la-curl_des.lo
  CC       libcurl_la-curl_endian.lo
  CC       libcurl_la-curl_fnmatch.lo
  CC       libcurl_la-curl_get_line.lo
  CC       libcurl_la-curl_gethostname.lo
  CC       libcurl_la-curl_gssapi.lo
  CC       libcurl_la-curl_memrchr.lo
  CC       libcurl_la-curl_ntlm_core.lo
  CC       libcurl_la-curl_range.lo
  CC       libcurl_la-curl_rtmp.lo
  CC       libcurl_la-curl_sasl.lo
  CC       libcurl_la-curl_sha512_256.lo
  CC       libcurl_la-curl_sspi.lo
  CC       libcurl_la-curl_threads.lo
  CC       libcurl_la-curl_trc.lo
  CC       libcurl_la-cw-out.lo
  CC       libcurl_la-cw-pause.lo
  CC       libcurl_la-dict.lo
  CC       libcurl_la-doh.lo
  CC       libcurl_la-dynhds.lo
  CC       libcurl_la-easy.lo
  CC       libcurl_la-easygetopt.lo
  CC       libcurl_la-easyoptions.lo
  CC       libcurl_la-escape.lo
  CC       libcurl_la-fake_addrinfo.lo
  CC       libcurl_la-file.lo
  CC       libcurl_la-fileinfo.lo
  CC       libcurl_la-fopen.lo
  CC       libcurl_la-formdata.lo
  CC       libcurl_la-ftp.lo
  CC       libcurl_la-ftplistparser.lo
  CC       libcurl_la-getenv.lo
  CC       libcurl_la-getinfo.lo
  CC       libcurl_la-gopher.lo
  CC       libcurl_la-hash.lo
  CC       libcurl_la-headers.lo
  CC       libcurl_la-hmac.lo
  CC       libcurl_la-hostip.lo
  CC       libcurl_la-hostip4.lo
  CC       libcurl_la-hostip6.lo
  CC       libcurl_la-hsts.lo
  CC       libcurl_la-http.lo
  CC       libcurl_la-http1.lo
  CC       libcurl_la-http2.lo
  CC       libcurl_la-http_aws_sigv4.lo
  CC       libcurl_la-http_chunks.lo
[command output truncated]
  CC       ../lib/curlx/curl-wait.o
  CC       ../lib/curlx/curl-warnless.o
  CC       curlinfo.o
  CC       libcurltool_la-config2setopts.lo
  CC       libcurltool_la-slist_wc.lo
  CC       libcurltool_la-terminal.lo
  CC       libcurltool_la-tool_bname.lo
  CC       libcurltool_la-tool_cb_dbg.lo
  CC       libcurltool_la-tool_cb_hdr.lo
  CC       libcurltool_la-tool_cb_prg.lo
  CC       libcurltool_la-tool_cb_rea.lo
  CC       libcurltool_la-tool_cb_see.lo
  CC       libcurltool_la-tool_cb_soc.lo
  CC       libcurltool_la-tool_cb_wrt.lo
  CC       libcurltool_la-tool_cfgable.lo
  CC       libcurltool_la-tool_dirhie.lo
  CC       libcurltool_la-tool_doswin.lo
  CC       libcurltool_la-tool_easysrc.lo
  CC       libcurltool_la-tool_filetime.lo
  CC       libcurltool_la-tool_findfile.lo
  CC       libcurltool_la-tool_formparse.lo
  CC       libcurltool_la-tool_getparam.lo
  CC       libcurltool_la-tool_getpass.lo
  CC       libcurltool_la-tool_help.lo
  CC       libcurltool_la-tool_helpers.lo
  CC       libcurltool_la-tool_ipfs.lo
  CC       libcurltool_la-tool_libinfo.lo
  CC       libcurltool_la-tool_listhelp.lo
  CC       libcurltool_la-tool_main.lo
  CC       libcurltool_la-tool_msgs.lo
  CC       libcurltool_la-tool_operate.lo
  CC       libcurltool_la-tool_operhlp.lo
  CC       libcurltool_la-tool_paramhlp.lo
  CC       libcurltool_la-tool_parsecfg.lo
  CC       libcurltool_la-tool_progress.lo
  CC       libcurltool_la-tool_setopt.lo
  CC       libcurltool_la-tool_ssls.lo
  CC       libcurltool_la-tool_stderr.lo
  CC       libcurltool_la-tool_strdup.lo
  CC       libcurltool_la-tool_urlglob.lo
  CC       libcurltool_la-tool_util.lo
  CC       libcurltool_la-tool_vms.lo
  CC       libcurltool_la-tool_writeout.lo
  CC       libcurltool_la-tool_writeout_json.lo
  CC       libcurltool_la-tool_xattr.lo
  CC       libcurltool_la-var.lo
  CC       ../lib/curlx/libcurltool_la-base64.lo
  CC       ../lib/curlx/libcurltool_la-multibyte.lo
  CC       ../lib/curlx/libcurltool_la-dynbuf.lo
  CC       ../lib/curlx/libcurltool_la-nonblock.lo
  CC       ../lib/curlx/libcurltool_la-strparse.lo
  CC       ../lib/curlx/libcurltool_la-timediff.lo
  CC       ../lib/curlx/libcurltool_la-timeval.lo
  CC       ../lib/curlx/libcurltool_la-version_win32.lo
  CC       ../lib/curlx/libcurltool_la-wait.lo
  CC       ../lib/curlx/libcurltool_la-warnless.lo
  CC       curl-tool_hugehelp.o
  CC       curl-tool_ca_embed.o
  CCLD     curlinfo
  CCLD     libcurltool.la
  CCLD     curl
make[1]: Leaving directory '/home/peter/curl-8.16.0/src'
Making all in scripts
make[1]: Entering directory '/home/peter/curl-8.16.0/scripts'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/peter/curl-8.16.0/scripts'
make[1]: Entering directory '/home/peter/curl-8.16.0'
make[1]: Nothing to be done for 'all-am'.
make[1]: Leaving directory '/home/peter/curl-8.16.0'
↓ 141 lines
ASSISTANT
Show reasoning

Checking installation steps

The build succeeded, which is great! Now, I need to run 'make install' to place everything in the specified directory. Since the prefix is in /home/peter, and it’s owned by the user, I won't need sudo access. But I still need to think about ensuring the process runs non-interactively. Alright, I’ll go ahead and execute 'make install' now!

compile-bench> cd /home/peter/curl-8.16.0 && make install
Making install in lib
make[1]: Entering directory '/home/peter/curl-8.16.0/lib'
make[2]: Entering directory '/home/peter/curl-8.16.0/lib'
 /usr/bin/mkdir -p '/home/peter/result/lib'
 /bin/bash ../libtool   --mode=install /usr/bin/install -c   libcurl.la '/home/peter/result/lib'
libtool: install: /usr/bin/install -c .libs/libcurl.so.4.8.0 /home/peter/result/lib/libcurl.so.4.8.0
libtool: install: (cd /home/peter/result/lib && { ln -s -f libcurl.so.4.8.0 libcurl.so.4 || { rm -f libcurl.so.4 && ln -s libcurl.so.4.8.0 libcurl.so.4; }; })
libtool: install: (cd /home/peter/result/lib && { ln -s -f libcurl.so.4.8.0 libcurl.so || { rm -f libcurl.so && ln -s libcurl.so.4.8.0 libcurl.so; }; })
libtool: install: /usr/bin/install -c .libs/libcurl.lai /home/peter/result/lib/libcurl.la
libtool: install: /usr/bin/install -c .libs/libcurl.a /home/peter/result/lib/libcurl.a
libtool: install: chmod 644 /home/peter/result/lib/libcurl.a
libtool: install: ranlib /home/peter/result/lib/libcurl.a
libtool: finish: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/sbin" ldconfig -n /home/peter/result/lib
----------------------------------------------------------------------
Libraries have been installed in:
   /home/peter/result/lib

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the '-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the 'LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the 'LD_RUN_PATH' environment variable
     during linking
   - use the '-Wl,-rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to '/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------
make[2]: Nothing to be done for 'install-data-am'.
make[2]: Leaving directory '/home/peter/curl-8.16.0/lib'
make[1]: Leaving directory '/home/peter/curl-8.16.0/lib'
Making install in docs
make[1]: Entering directory '/home/peter/curl-8.16.0/docs'
Making install in .
make[2]: Entering directory '/home/peter/curl-8.16.0/docs'
make[3]: Entering directory '/home/peter/curl-8.16.0/docs'
make[3]: Nothing to be done for 'install-exec-am'.
 /usr/bin/mkdir -p '/home/peter/result/share/man/man1'
 /usr/bin/install -c -m 644 curl-config.1 wcurl.1 '/home/peter/result/share/man/man1'
make[3]: Leaving directory '/home/peter/curl-8.16.0/docs'
make[2]: Leaving directory '/home/peter/curl-8.16.0/docs'
Making install in cmdline-opts
make[2]: Entering directory '/home/peter/curl-8.16.0/docs/cmdline-opts'
make[3]: Entering directory '/home/peter/curl-8.16.0/docs/cmdline-opts'
make[3]: Nothing to be done for 'install-exec-am'.
 /usr/bin/mkdir -p '/home/peter/result/share/man/man1'
 /u
[command output truncated]
ng directory '/home/peter/curl-8.16.0/docs/libcurl/opts'
make[5]: Leaving directory '/home/peter/curl-8.16.0/docs/libcurl/opts'
make[5]: Entering directory '/home/peter/curl-8.16.0/docs/libcurl'
make[6]: Entering directory '/home/peter/curl-8.16.0/docs/libcurl'
make[6]: Nothing to be done for 'install-exec-am'.
 /usr/bin/mkdir -p '/home/peter/result/share/aclocal'
 /usr/bin/install -c -m 644 libcurl.m4 '/home/peter/result/share/aclocal'
 /usr/bin/mkdir -p '/home/peter/result/share/man/man3'
 /usr/bin/install -c -m 644 curl_easy_cleanup.3 curl_easy_duphandle.3 curl_easy_escape.3 curl_easy_getinfo.3 curl_easy_header.3 curl_easy_init.3 curl_easy_nextheader.3 curl_easy_option_by_id.3 curl_easy_option_by_name.3 curl_easy_option_next.3 curl_easy_pause.3 curl_easy_perform.3 curl_easy_recv.3 curl_easy_reset.3 curl_easy_send.3 curl_easy_setopt.3 curl_easy_ssls_export.3 curl_easy_ssls_import.3 curl_easy_strerror.3 curl_easy_unescape.3 curl_easy_upkeep.3 curl_escape.3 curl_formadd.3 curl_formfree.3 curl_formget.3 curl_free.3 curl_getdate.3 curl_getenv.3 curl_global_cleanup.3 curl_global_init.3 curl_global_init_mem.3 curl_global_sslset.3 curl_global_trace.3 curl_mime_addpart.3 curl_mime_data.3 curl_mime_data_cb.3 curl_mime_encoder.3 curl_mime_filedata.3 curl_mime_filename.3 curl_mime_free.3 '/home/peter/result/share/man/man3'
 /usr/bin/install -c -m 644 curl_mime_headers.3 curl_mime_init.3 curl_mime_name.3 curl_mime_subparts.3 curl_mime_type.3 curl_mprintf.3 curl_multi_add_handle.3 curl_multi_assign.3 curl_multi_cleanup.3 curl_multi_fdset.3 curl_multi_get_handles.3 curl_multi_get_offt.3 curl_multi_info_read.3 curl_multi_init.3 curl_multi_perform.3 curl_multi_poll.3 curl_multi_remove_handle.3 curl_multi_setopt.3 curl_multi_socket.3 curl_multi_socket_action.3 curl_multi_socket_all.3 curl_multi_strerror.3 curl_multi_timeout.3 curl_multi_wait.3 curl_multi_waitfds.3 curl_multi_wakeup.3 curl_pushheader_byname.3 curl_pushheader_bynum.3 curl_share_cleanup.3 curl_share_init.3 curl_share_setopt.3 curl_share_strerror.3 curl_slist_append.3 curl_slist_free_all.3 curl_strequal.3 curl_strnequal.3 curl_unescape.3 curl_url.3 curl_url_cleanup.3 curl_url_dup.3 '/home/peter/result/share/man/man3'
 /usr/bin/install -c -m 644 curl_url_get.3 curl_url_set.3 curl_url_strerror.3 curl_version.3 curl_version_info.3 curl_ws_meta.3 curl_ws_recv.3 curl_ws_send.3 curl_ws_start_frame.3 libcurl-easy.3 libcurl-env-dbg.3 libcurl-env.3 libcurl-errors.3 libcurl-multi.3 libcurl-security.3 libcurl-share.3 libcurl-symbols.3 libcurl-thread.3 libcurl-tutorial.3 libcurl-url.3 libcurl-ws.3 libcurl.3 '/home/peter/result/share/man/man3'
make[6]: Leaving directory '/home/peter/curl-8.16.0/docs/libcurl'
make[5]: Leaving directory '/home/peter/curl-8.16.0/docs/libcurl'
make[4]: Leaving directory '/home/peter/curl-8.16.0/docs/libcurl'
make[3]: Leaving directory '/home/peter/curl-8.16.0'
make[2]: Leaving directory '/home/peter/curl-8.16.0'
make[1]: Leaving directory '/home/peter/curl-8.16.0'
↓ 69 lines
ASSISTANT
compile-bench> ls -la /home/peter/result/bin | sed -n '1,200p'
total 368
drwxr-xr-x 2 peter peter   4096 Sep 16 21:49 .
drwxr-xr-x 6 peter peter   4096 Sep 16 21:49 ..
-rwxr-xr-x 1 peter peter 346464 Sep 16 21:49 curl
-rwxr-xr-x 1 peter peter   5146 Sep 16 21:49 curl-config
-rwxr-xr-x 1 peter peter  10622 Sep 16 21:49 wcurl
↓ 7 lines
ASSISTANT
compile-bench> ln -sf /home/peter/result/bin/curl /home/peter/result/curl && ls -la /home/peter/result | sed -n '1,200p'
total 24
drwxr-xr-x 6 peter peter 4096 Sep 16 21:49 .
drwxr-x--- 1 peter peter 4096 Sep 16 21:49 ..
drwxr-xr-x 2 peter peter 4096 Sep 16 21:49 bin
lrwxrwxrwx 1 peter peter   27 Sep 16 21:49 curl -> /home/peter/result/bin/curl
drwxr-xr-x 3 peter peter 4096 Sep 16 21:49 include
drwxr-xr-x 3 peter peter 4096 Sep 16 21:49 lib
drwxr-xr-x 4 peter peter 4096 Sep 16 21:49 share
↓ 9 lines
ASSISTANT
compile-bench> /home/peter/result/curl --version
curl 8.16.0 (x86_64-pc-linux-gnu) libcurl/8.16.0 OpenSSL/3.0.2 zlib/1.2.11 brotli/1.0.9 zstd/1.4.8 libpsl/0.21.0 nghttp2/1.43.0
Release-Date: 2025-09-10
Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns mqtt pop3 pop3s rtsp smb smbs smtp smtps telnet tftp ws wss
Features: alt-svc AsynchDNS brotli HSTS HTTP2 HTTPS-proxy IPv6 Largefile libz NTLM PSL SSL threadsafe TLS-SRP UnixSockets zstd
↓ 5 lines
ASSISTANT
compile-bench> /home/peter/result/curl --tlsv1.3 -I https://www.google.com -s -o /dev/null -w "%{ssl_version}\n"
curl: unknown --write-out variable: 'ssl_version'
ASSISTANT
Show reasoning

Troubleshooting SSL version in curl

I'm seeing an issue with the 'ssl_version' variable being flagged as unknown. I'm wondering if this could be due to an older version of curl not supporting it. I'll check by running 'curl --help' to confirm. If that doesn't show a solution, I can also try 'curl --lib-version' or 'curl -V' to gather more info. Meanwhile, I can validate TLS 1.3 using 'openssl s_client -connect.' The user wants to ensure SSL support with specific features, which looks good based on the configuration and curl version info I found.Testing TLS 1.3 connection

I'm checking for TLS 1.3 support. While 'curl --version' doesn't explicitly say it, I see that OpenSSL 3.0.2 supports TLS 1.3. I could test with 'curl --tlsv1.3 --version', but that might not yield results. Instead, I plan to connect to 'https://www.howsmyssl.com/a/check' to see the 'tls_version' in the JSON response. I’ll use grep to find the 'tls_version' field in the output. I'll run the command now and inspect the results!

compile-bench> /home/peter/result/curl -s https://www.howsmyssl.com/a/check | grep -i tls_version || true
{"given_cipher_suites":["TLS_AES_256_GCM_SHA384","TLS_CHACHA20_POLY1305_SHA256","TLS_AES_128_GCM_SHA256","TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384","TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384","TLS_DHE_RSA_WITH_AES_256_GCM_SHA384","TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256","TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256","TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256","TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256","TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256","TLS_DHE_RSA_WITH_AES_128_GCM_SHA256","TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384","TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384","TLS_DHE_RSA_WITH_AES_256_CBC_SHA256","TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256","TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256","TLS_DHE_RSA_WITH_AES_128_CBC_SHA256","TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA","TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA","TLS_DHE_RSA_WITH_AES_256_CBC_SHA","TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA","TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA","TLS_DHE_RSA_WITH_AES_128_CBC_SHA","TLS_RSA_WITH_AES_256_GCM_SHA384","TLS_RSA_WITH_AES_128_GCM_SHA256","TLS_RSA_WITH_AES_256_CBC_SHA256","TLS_RSA_WITH_AES_128_CBC_SHA256","TLS_RSA_WITH_AES_256_CBC_SHA","TLS_RSA_WITH_AES_128_CBC_SHA","TLS_EMPTY_RENEGOTIATION_INFO_SCSV"],"ephemeral_keys_supported":true,"session_ticket_supported":false,"tls_compression_supported":false,"unknown_cipher_suite_supported":false,"beast_vuln":false,"able_to_detect_n_minus_one_splitting":false,"insecure_cipher_suites":{},"tls_version":"TLS 1.3","rating":"Probably Okay"}
ASSISTANT

Done — I built curl from /home/peter/curl.tar.gz and installed it to /home/peter/result, and created the symlink /home/peter/result/curl -> /home/peter/result/bin/curl.

What I did (summary)
- Installed required build deps (dev packages for OpenSSL, brotli, zstd, zlib, libpsl, etc.).
- Extracted the provided source, configured with OpenSSL and enabled brotli, zlib and zstd.
- Built and installed to /home/peter/result.
- Created a symlink /home/peter/result/curl -> /home/peter/result/bin/curl.
- Verified TLS 1.3 negotiation by making a TLS check request.

Key verification outputs
- curl version:
/home/peter/result/curl --version
Output:
curl 8.16.0 (x86_64-pc-linux-gnu) libcurl/8.16.0 OpenSSL/3.0.2 zlib/1.2.11 brotli/1.0.9 zstd/1.4.8 libpsl/0.21.0 nghttp2/1.43.0
Features: ... brotli ... SSL ... zstd

- TLS 1.3 negotiation test:
/home/peter/result/curl -s https://www.howsmyssl.com/a/check | grep -i tls_version
Output includes:
"tls_version":"TLS 1.3"

Locations
- Binary: /home/peter/result/bin/curl
- Symlink: /home/peter/result/curl -> /home/peter/result/bin/curl
- Installed libs/headers: /home/peter/result/lib and /home/peter/result/include

If you want, I can:
- Build a static curl binary,
- Produce a tarball of /home/peter/result,
- Or reconfigure with additional features (libssh, ngtcp2/nghttp3 for HTTP/3, etc.).

Task finished successfully, all checks passed!
Checks passed:
curl binary exists
curl version matches expected
curl downloaded the expected local file content
curl HTTPS request to google.com returned content-type: text/html
curl TLSv1.2 connection to google.com used TLSv1.2
curl TLSv1.3 connection to google.com used TLSv1.3
curl brotli compression test passed
curl gzip compression test passed
curl version shows zstd support