<- Ranking
Summary
Task
curl-ssl
Model
gemini-2.5-pro logo
gemini-2.5-pro
Status
Success
Performance
Cost$0.097
Total elapsed time2m37s
LLM inference time57s
Command execution time1m40s
Commands executed11
All details >
Attempt ID cxwdxu4prhl2v Attempt group run-16-09-22-05
Revision fb5c74bd2fee AWS Instance m8i.2xlarge
Start time 2025-09-16T21:28:25.975Z End time 2025-09-16T21:31:05.011Z
Task curl-ssl Environment ubuntu-22.04-amd64
Model gemini-2.5-pro logo gemini-2.5-pro OpenRouter slug google/gemini-2.5-pro
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 $0.097 Duration 2m37s
LLM inference time 57s Command execution time 1m40s
Final context tokens 12,053 Total output tokens 4,470
Output reasoning tokens 3,752 Messages 25
Assistant messages 12 User messages 1
System messages 1 Commands executed 11
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

Initiating Compilation Plans

I'm starting the build process now. First, the tarball extraction. Then, I'll configure with SSL, Brotli, Zlib, and Zstd support. Afterwards, the custom install directory will be set.

Gathering Dependencies for Curl

I've shifted focus to gathering the necessary components. Specifically, I am preparing to install the dependencies for curl. This includes build-essential, libssl-dev, zlib1g-dev, libbrotli-dev, and libzstd-dev. I'm prioritizing this before proceeding to the extraction of the tarball.

compile-bench> sudo apt-get update && sudo DEBIAN_FRONTEND=noninteractive apt-get install -y build-essential libssl-dev zlib1g-dev libbrotli-dev libzstd-dev
0% [Working]
            
Hit:1 http://archive.ubuntu.com/ubuntu jammy InRelease

0% [Waiting for headers] [Waiting for headers]
                                              
Get:2 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB]

0% [Waiting for headers] [2 InRelease 14.2 kB/129 kB 11%]
                                                         
Get:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB]

0% [3 InRelease 14.2 kB/128 kB 11%] [2 InRelease 14.2 kB/129 kB 11%]
0% [3 InRelease 33.0 kB/128 kB 26%] [2 InRelease 57.6 kB/129 kB 45%]
                                                                    
0% [3 InRelease 75.0 kB/128 kB 59%]
                                   
0% [Working]
0% [Waiting for headers]
                        
Get:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB]

0% [4 InRelease 14.2 kB/127 kB 11%]
                                   
0% [Waiting for headers]
                        
Get:5 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [5441 kB]

0% [5 Packages 6999 B/5441 kB 0%]
0% [5 Packages 145 kB/5441 kB 3%]
                                 
Get:6 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [3624 kB]

0% [6 Packages 8447 B/3624 kB 0%] [5 Packages 320 kB/5441 kB 6%]
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59% [5 Packages store 0 B] [6 Packages 2445 kB/3624 kB 67%] [Waiting for header
                                                                               
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Get:7 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [3311 kB]

65% [5 Packages store 0 B] [Waiting for headers] [7 Packages 49.2 kB/3311 kB 1%
                                                                               
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Get:8 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1274 kB]

82% [5 Packages store 0 B] [Waiting for headers] [8 Packages 30.7 kB/1274 kB 2%
                                                                               
Get:9 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1581 kB]

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Get:10 http://security.ubuntu.com/ubuntu jammy-security/multiverse amd64 Packages [80.3 kB]

96% [5 Packages store 0 B] [10 Packages 3
[command output truncated]



Reading state information... 0% 

Reading state information... 1%

Reading state information... Done

build-essential is already the newest version (12.9ubuntu3).
Suggested packages:
  libssl-doc
The following NEW packages will be installed:
  libbrotli-dev libssl-dev libzstd-dev zlib1g-dev
0 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 3278 kB of archives.
After this operation, 15.3 MB of additional disk space will be used.

0% [Working]
            
Get:1 http://archive.ubuntu.com/ubuntu jammy/main amd64 libbrotli-dev amd64 1.0.9-2build6 [337 kB]

0% [1 libbrotli-dev 14.2 kB/337 kB 4%]
                                      
13% [Waiting for headers]
                         
Get:2 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libssl-dev amd64 3.0.2-0ubuntu1.19 [2376 kB]

13% [2 libssl-dev 4059 B/2376 kB 0%]
                                    
Get:3 http://archive.ubuntu.com/ubuntu jammy/main amd64 libzstd-dev amd64 1.4.8+dfsg-3build1 [401 kB]

76% [3 libzstd-dev 11.3 kB/401 kB 3%]
                                     
Get:4 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 zlib1g-dev amd64 1:1.2.11.dfsg-2ubuntu9.2 [164 kB]

91% [4 zlib1g-dev 15.6 kB/164 kB 10%]
                                     
100% [Working]
              
Fetched 3278 kB in 1s (2736 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package libbrotli-dev:amd64.
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(Reading database ... 10711 files and directories currently installed.)
Preparing to unpack .../libbrotli-dev_1.0.9-2build6_amd64.deb ...
Unpacking libbrotli-dev:amd64 (1.0.9-2build6) ...
Selecting previously unselected package libssl-dev:amd64.
Preparing to unpack .../libssl-dev_3.0.2-0ubuntu1.19_amd64.deb ...
Unpacking libssl-dev:amd64 (3.0.2-0ubuntu1.19) ...
Selecting previously unselected package libzstd-dev:amd64.
Preparing to unpack .../libzstd-dev_1.4.8+dfsg-3build1_amd64.deb ...
Unpacking libzstd-dev:amd64 (1.4.8+dfsg-3build1) ...
Selecting previously unselected package zlib1g-dev:amd64.
Preparing to unpack .../zlib1g-dev_1%3a1.2.11.dfsg-2ubuntu9.2_amd64.deb ...
Unpacking zlib1g-dev:amd64 (1:1.2.11.dfsg-2ubuntu9.2) ...
Setting up libzstd-dev:amd64 (1.4.8+dfsg-3build1) ...
Setting up libssl-dev:amd64 (3.0.2-0ubuntu1.19) ...
Setting up zlib1g-dev:amd64 (1:1.2.11.dfsg-2ubuntu9.2) ...
Setting up libbrotli-dev:amd64 (1.0.9-2build6) ...
↓ 46 lines
ASSISTANT
Show reasoning

Examining Build Dependencies

I'm currently focusing on the preliminary steps for compiling curl. My immediate concern is ensuring all necessary build dependencies, including those for TLS v1.3, Brotli, Zlib, and Zstd, are installed. I'm leaning towards using apt-get for this, and need to formulate the exact command for the task.

Constructing Configuration Command

I've moved onto the configure command. I've verified the desired install directory and feature flags. I am assembling the full ./configure command now, incorporating the --prefix option and feature switches for SSL, Brotli, Zlib, and Zstd. The preliminary command appears correct; I am about to test it.

Decompressing Source Archive

I've determined the next step is extracting the source code. The provided path is /home/peter/curl.tar.gz. The command to execute is tar -xzf /home/peter/curl.tar.gz. I anticipate a directory, likely named curl-8.16.0, will be created. This needs to precede configuration and compilation.

compile-bench> tar -xzf curl.tar.gz
[empty output]
ASSISTANT
Show reasoning

Initiating Compilation Sequence

I've navigated to the extracted source directory and am preparing to execute the ./configure script. My focus now is on identifying and implementing the precise flags needed to direct the installation to the specified location, ensuring all components are correctly linked. I'll then move on to the make and make install steps.

Confirming Directory Structure

I've confirmed the directory name, "curl-8.1.2", via ls. Now, I'm constructing the ./configure command. I'll include the --prefix, --with-ssl, --with-brotli, --with-zlib, and --with-zstd flags to ensure the installation meets the user's specifications. The order of flags, I believe, won't matter. Next steps: make, then make install.

compile-bench> ls -d curl-*/
curl-8.16.0/
ASSISTANT
Show reasoning

Initiating Installation Steps

I've navigated the user's request to install curl from source. Having handled dependencies and source extraction, the next step is the cd command. After that, it's all about configuring with ./configure, then the make and make install dance. I'm sketching the precise configure flags now to ensure a smooth install into their target directory.

Composing Configuration Strings

I'm now assembling the exact configure command. The user's specifying /home/peter/result as the install location, so --prefix=/home/peter/result is essential. SSL, Brotli, Zstd, and Zlib support are included. I'm putting together the final configure string, keeping in mind the need for a cd into the source directory before execution.

compile-bench> cd curl-8.16.0 && ./configure --prefix=/home/peter/result --with-ssl --with-brotli --with-zstd
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]
to support dict... yes
checking whether to support telnet... 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 pkg-config... no
checking for inflateEnd in -lz... yes
checking for zlib.h... yes
configure: found both libz and libz.h header
checking for pkg-config... no
checking for pkg-config... no
checking for BrotliDecoderDecompress in -lbrotlidec... yes
checking for brotli/decode.h... yes
checking for pkg-config... no
checking for ZSTD_createDStream in -lzstd... yes
checking for zstd.h... yes
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 pkg-config... 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
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... no
checking for psl_builtin in -lpsl... no
configure: error: libpsl libs and/or directories were not found where specified!
↓ 137 lines
ASSISTANT
Show reasoning

Debugging the Curl Build

I've hit a snag with the curl build. The configure script is complaining about missing libpsl. I'm going to check the dependencies to ensure I have libpsl-dev installed, then re-run the configuration. This should get the build back on track.

Verifying Dependencies

I've confirmed that libpsl-dev is indeed installed. I'm now re-running the configure script to see if it resolves the libpsl error. If all goes well, I'll proceed with make and make install. My final step will be to establish the necessary symlink.

compile-bench> sudo DEBIAN_FRONTEND=noninteractive apt-get install -y libpsl-dev
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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... 79%

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]

15% [1 libpsl-dev 14.2 kB/77.9 kB 18%]
                                      
100% [Working]
              
Fetched 77.9 kB in 0s (687 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 ... 10929 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

Debugging the Build

I'm now focused on diagnosing the failure of the configure script. I'm reviewing the error messages to pinpoint the missing dependency or misconfiguration. It seems like there's a hitch during the process. I'm diving deeper into the logs to clarify the root cause before proceeding with the build.

Retrying Configuration

I've resolved the 'libpsl' dependency issue. I'm about to re-execute the configure script with the same parameters. If successful, I'll then proceed to the 'make' and 'make install' steps. I'm expecting a successful configuration this time.

compile-bench> cd curl-8.16.0 && ./configure --prefix=/home/peter/result --with-ssl --with-brotli --with-zstd
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]
rts/Makefile
config.status: creating tests/data/Makefile
config.status: creating tests/server/Makefile
config.status: creating tests/libtest/Makefile
config.status: 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
   LDFLAGS:         
     curl-config:   
   LIBS:            -lpsl -lssl -lcrypto -lzstd -lbrotlidec -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:            no      (--with-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 HTTPS-proxy IPv6 Largefile libz NTLM PSL SSL threadsafe TLS-SRP UnixSockets zstd
↓ 137 lines
ASSISTANT
Show reasoning

Beginning Compilation of Curl

I've successfully configured the build. Now, I'm ready to run make to compile the curl code. After compilation, I plan to install it using make install into the defined directory. Subsequently, I'll create the necessary symlink.

Proceeding with Compilation

I've initiated the compilation process, executing make. I'm watching for any errors or warnings during this phase. Once complete, I'll proceed with installation using make install, placing the binaries in the designated output directory. Following that, I will be working on creating the symbolic link. I will also verify the compilation.

compile-bench> cd curl-8.16.0 && make
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-timeval.o
  CC       ../lib/curlx/curl-version_win32.o
  CC       ../lib/curlx/curl-wait.o
  CC       ../lib/curlx/curl-warnless.o
  CCLD     curl
  CC       curlinfo.o
  CCLD     curlinfo
  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
  CCLD     libcurltool.la
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

Commencing Installation

I've successfully compiled curl from source after ensuring all dependencies were met. The make process finished without a hitch. I'm now focusing on the final installation step and ensuring everything is placed correctly.

Executing Installation

I've moved on to the crucial installation phase. I'm running make install within the extracted source directory to place the compiled files. Next, I'll create the symbolic link as specified by the user, ensuring curl is accessible from the /home/peter/result/curl location.

compile-bench> cd 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
Show reasoning

Planning the Compilation

I've extracted the source code and confirmed the dependencies are in place. Now, my focus is shifting to the configuration phase. I'm strategizing the best configure options to specify the installation directory, ensuring a clean and isolated installation. I aim to minimize conflicts with the system's existing curl.

Symlinking and Verification

I've now successfully created the symlink, linking the executable to the intended location. Next, I'll proceed with verifying the installation. My plan is to execute the compiled curl with the --version flag, which should confirm the build's features, including SSL, Brotli, zstd and TLS-v1.3.

compile-bench> ln -s /home/peter/result/bin/curl /home/peter/result/curl
[empty output]
ASSISTANT
Show reasoning

Planning the Build

I've prepped the ground, ensuring dependencies for a feature-rich curl build are in place. Now, the extraction is complete, and I'm ready to configure the build process itself, targeting a specific installation directory. I'm considering the optimal configure options to get the desired features enabled.

Assessing the Installation

I've verified the symlink's integrity. Next, I'm executing the compiled curl binary with the -V flag. I'll be scrutinizing the output, confirming the inclusion of SSL, brotli, zstd, and TLS v1.3 features to validate a correct build and install, making sure all the necessary dependencies are working together as intended.

I have successfully compiled and installed curl v8.16.0 to /home/peter/result with SSL, brotli, zlib, and zstd support. I also created a symlink from /home/peter/result/curl to the curl binary.

Now, I will verify the installation.

compile-bench> ls -l /home/peter/result
total 16
drwxr-xr-x 2 peter peter 4096 Sep 16 21:30 bin
lrwxrwxrwx 1 peter peter   27 Sep 16 21:30 curl -> /home/peter/result/bin/curl
drwxr-xr-x 3 peter peter 4096 Sep 16 21:30 include
drwxr-xr-x 3 peter peter 4096 Sep 16 21:30 lib
drwxr-xr-x 4 peter peter 4096 Sep 16 21:30 share
↓ 7 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
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 HTTPS-proxy IPv6 Largefile libz NTLM PSL SSL threadsafe TLS-SRP UnixSockets zstd
↓ 5 lines
ASSISTANT
Show reasoning

Contemplating the Compilation

I'm now zeroing in on the initial steps: installing build dependencies. I'm making sure I've got build-essential, libssl-dev, libbrotli-dev, and zlib1g-dev ready to go. Avoiding any hiccups in this stage is key to a smooth compilation. Next up, I will tackle the source archive.

Unpacking and Configuring

I've now unpacked the source archive and am preparing to run the configure script. I'm setting the installation prefix to /home/peter/result and enabling SSL, Brotli, and Zstd support using the appropriate flags. I'll confirm Zlib is enabled during configure.

Concluding the Build

I've finished the verification phase. Running the new curl binary with --version confirms a successful build. All the requested features, including SSL, Brotli, Zlib, and Zstd, are enabled. The installation path is correct, and the symlink works as expected. I believe I can confidently say the task is complete.

Summarizing the Outcome

I've reviewed the completed steps and their outputs. All features are verified: SSL, Brotli, Zlib, and Zstd are enabled as requested. The version and installation paths are also as specified. The compilation and installation are complete.

I have successfully compiled and installed curl v8.16.0 with the specified features.

Verification:

1. Installation Directory:
The compiled files are installed in /home/peter/result, as requested. The ls -l /home/peter/result command output confirms the directory structure with bin, include, lib, and share directories, along with the curl symlink.

2. Symlink:
A symlink has been created at /home/peter/result/curl pointing to the curl binary in /home/peter/result/bin/curl.

3. Features:
The output of /home/peter/result/curl --version confirms that the build includes the requested features:
* 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
* SSL (TLS v1.3): OpenSSL/3.0.2 is present.
* brotli: brotli/1.0.9 is present.
* zlib: zlib/1.2.11 is present.
* zstd: zstd/1.4.8 is present.
* The Features list also correctly includes brotli, libz, SSL, and zstd.

Everything has been completed as requested.

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