frankenphp Error building docker image for laravel standalone binaries

What happened?

When building the docker image for laravel standalone binaries, following the step-by-step instructions in the FrankPHP documentation, an error is generated from ./build-static.sh in docker.

To reproduce:

composer create-project laravel/laravel frankenphp-demo
Create a file named static-build.Dockerfile inside frankenphp-demo directory. The static-build.Dockerfile contents are exactly the same as https://frankenphp.dev/docs/laravel/#laravel-apps-as-standalone-binaries
Run docker build -t static-laravel-app -f static-build.Dockerfile .

The error is generated.

Build Type

Official static build

Worker Mode

No

Operating System

GNU/Linux

CPU Architecture

x86_64

PHP configuration

Relevant log output

224.0 [03:41:13] [I] Entering dir: /go/src/app/dist/static-php-cli/source/embed-test
224.0 [03:41:13] [I] [EXEC] gcc -o embed embed.c -fPIC -I/go/src/app/dist/static-php-cli/buildroot/include -I/go/src/app/dist/static-php-cli/buildroot/include/php -I/go/src/app/dist/static-php-cli/buildroot/include/php/main -I/go/src/app/dist/static-php-cli/buildroot/include/php/TSRM -I/go/src/app/dist/static-php-cli/buildroot/include/php/Zend -I/go/src/app/dist/static-php-cli/buildroot/include/php/ext -L/go/src/app/dist/static-php-cli/buildroot/lib -lphp -lc -lnghttp2 -lzip -lwebp -lwebpdecoder -lwebpdemux -lwebpmux -lsharpyuv -llz4 -ljpeg -lturbojpeg -lavif -lfreetype -lbrotlidec -lbrotlienc -lbrotlicommon -lbz2 -lssl -lcrypto -lxml2 -lz -liconv -lcharset -ldl -lpthread -lm -static
224.0 [03:41:13] [I] Executed at: /go/src/app/dist/static-php-cli/src/SPC/builder/unix/UnixBuilderBase.php:191
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: /go/src/app/dist/static-php-cli/buildroot/lib/libxml2.a(encoding.c.o): in function `openIcuConverter':
228.9 encoding.c:(.text+0x118f): undefined reference to `ucnv_open_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x11ba): undefined reference to `UCNV_FROM_U_CALLBACK_STOP_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x11bf): undefined reference to `ucnv_setFromUCallBack_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x11de): undefined reference to `ucnv_open_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x11f7): undefined reference to `ucnv_close_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x1233): undefined reference to `UCNV_TO_U_CALLBACK_STOP_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x1238): undefined reference to `ucnv_setToUCallBack_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: /go/src/app/dist/static-php-cli/buildroot/lib/libxml2.a(encoding.c.o): in function `xmlUconvWrapper':
228.9 encoding.c:(.text+0x13ff): undefined reference to `ucnv_convertEx_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x148b): undefined reference to `ucnv_convertEx_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: /go/src/app/dist/static-php-cli/buildroot/lib/libxml2.a(encoding.c.o): in function `xmlFindCharEncodingHandler.localalias':
228.9 encoding.c:(.text+0x27a9): undefined reference to `ucnv_close_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x27b3): undefined reference to `ucnv_close_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x2839): undefined reference to `ucnv_close_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x2842): undefined reference to `ucnv_close_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x2869): undefined reference to `ucnv_close_77'
228.9 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: /go/src/app/dist/static-php-cli/buildroot/lib/libxml2.a(encoding.c.o):encoding.c:(.text+0x2873): more undefined references to `ucnv_close_77' follow
229.2 collect2: error: ld returned 1 exit status
229.2 [03:41:18] [I] Uncaught SPC\exception\RuntimeException: embed failed sanity check: build failed. Error message:  at /go/src/app/dist/static-php-cli/src/SPC/builder/unix/UnixBuilderBase.php(193)
229.2 [03:41:18] [I] #0 /go/src/app/dist/static-php-cli/src/SPC/builder/linux/LinuxBuilder.php(215): SPC\builder\unix\UnixBuilderBase->sanityCheck()
229.2 #1 /go/src/app/dist/static-php-cli/src/SPC/command/BuildPHPCommand.php(211): SPC\builder\linux\LinuxBuilder->buildPHP()
229.2 #2 /go/src/app/dist/static-php-cli/src/SPC/command/BaseCommand.php(106): SPC\command\BuildPHPCommand->handle()
229.2 #3 /go/src/app/dist/static-php-cli/vendor/symfony/console/Command/Command.php(326): SPC\command\BaseCommand->execute()
229.2 #4 /go/src/app/dist/static-php-cli/vendor/symfony/console/Application.php(1078): Symfony\Component\Console\Command\Command->run()
229.2 #5 /go/src/app/dist/static-php-cli/vendor/symfony/console/Application.php(324): Symfony\Component\Console\Application->doRunCommand()
229.2 #6 /go/src/app/dist/static-php-cli/vendor/symfony/console/Application.php(175): Symfony\Component\Console\Application->doRun()
229.2 #7 /go/src/app/dist/static-php-cli/bin/spc(31): Symfony\Component\Console\Application->run()
229.2 #8 {main}
------
static-build.Dockerfile:24
--------------------
  22 |     # Build the static binary
  23 |     WORKDIR /go/src/app/
  24 | >>> RUN EMBED=dist/app/ ./build-static.sh
--------------------
ERROR: failed to solve: process "/bin/ash -eo pipefail -c EMBED=dist/app/ ./build-static.sh" did not complete successfully: exit code: 1

May 10 '25 03:05 ecampere

Can you please post the exact list of extensions you tried to build with? This looks like some issue between using libxml2 but no intl extension.

May 11 '25 10:05 henderkes

Can you please post the exact list of extensions you tried to build with? This looks like some issue between using libxml2 but no intl extension.

Hi @henderkes . The default extensions required for Laravel 12 and composer were used. But declaring the extensions explicitly in the Dockerfile, they are as follows:

RUN EMBED=dist/app/ PHP_EXTENSIONS=ctype,dom,fileinfo,filter,iconv,libxml,mbstring,openssl,phar,session,tokenizer,xml,xmlwriter ./build-static.sh

May 12 '25 20:05 ecampere

Yeah like I expected, libxml but no intl. Maybe the system icu libraries are taken into account to set the feature check to true. We will have to fix this on the static-php-cli side.

Edit: as a quick fix, add the intl extension.

May 13 '25 01:05 henderkes

Edit: I guess we won't, because there doesn't seem to be such an error. I can build these extensions and frankenphp with it just fine. bin/spc-alpine-docker build ctype,dom,fileinfo,filter,iconv,libxml,mbstring,openssl,phar,session,tokenizer,xml,xmlwriter --build-embed --enable-zts --debug

Installing PHP SAPI module:       embed
[04:50:37] [I] Patching phpize prefix
[04:50:37] [I] Replacing file with type[1]: /app/buildroot/bin/phpize
[04:50:37] [I] Replacing file with type[1]: /app/buildroot/bin/phpize
[04:50:37] [I] Patching php-config prefix and libs order
[04:50:37] [I] running embed sanity check
[04:50:37] [I] Entering dir: /app/source/embed-test
[04:50:37] [I] [EXEC] gcc -o embed embed.c -fPIC -I/app/buildroot/include -I/app/buildroot/include/php -I/app/buildroot/include/php/main -I/app/buildroot/include/php/TSRM -I/app/buildroot/include/php/Zend -I/app/buildroot/include/php/ext -L/app/buildroot/lib -lphp -lc -lssl -lcrypto -lxml2 -lz -liconv -lcharset -ldl -lpthread -lm -static
[04:50:37] [I] Executed at: /app/src/SPC/builder/unix/UnixBuilderBase.php:191
[04:50:38] [I] Entering dir: /app/source/embed-test
[04:50:38] [I] [EXEC] ./embed
[04:50:38] [I] Executed at: /app/src/SPC/builder/unix/UnixBuilderBase.php:203
[04:50:38] [I]
[04:50:38] [I]    Build complete, used 155.496 s !
[04:50:38] [I]
[04:50:38] [I] Removing path recursively: "/app/buildroot/license"
[04:50:38] [I] scanning directory /app/buildroot/license
[04:50:38] [I] Making new directory recursive: /app/buildroot/license
[04:50:38] [I] License path (host system): /home/m/static-php-cli/buildroot/license/

May 14 '25 04:05 henderkes

I can't run the frankenphp builder directly after the latest changes in main.

@dunglas

docker build -t static-builder-musl   -f static-builder-musl.Dockerfile   --build-arg PHP_EXTENSIONS="ctype,dom,fileinfo,filter,iconv,libxml,mbstring,openssl,phar,session,tokenizer,xml,xmlwriter"   .

leads to

 => CANCELED [internal] load metadata for docker.io/composer/composer:2-bin                                        2.0s
 => ERROR [internal] load metadata for docker.io/library/golang-base:latest                                        2.0s
------
 > [internal] load metadata for docker.io/library/golang-base:latest:
------
static-builder-musl.Dockerfile:5
--------------------
   3 |     #checkov:skip=CKV_DOCKER_3
   4 |     #checkov:skip=CKV_DOCKER_7
   5 | >>> FROM golang-base
   6 |
   7 |     ARG TARGETARCH
--------------------
ERROR: failed to solve: golang-base: pull access denied, repository does not exist or may require authorization: server message: insufficient_scope: authorization failed

after changing to golang:alpine:

[m@M-NB frankenphp]$ docker build -t static-builder-musl   -f static-builder-musl.Dockerfile   --build-arg PHP_EXTENSIONS="ctype,dom,fileinfo,filter,iconv,libxml,mbstring,openssl,phar,session,tokenizer,xml,xmlwriter"   .
[+] Building 2.8s (14/20)                                                                                docker:default
 => [internal] load build definition from static-builder-musl.Dockerfile                                           0.0s
 => => transferring dockerfile: 2.36kB                                                                             0.0s
 => resolve image config for docker-image://docker.io/docker/dockerfile:1                                          0.9s
 => CACHED docker-image://docker.io/docker/dockerfile:1@sha256:9857836c9ee4268391bb5b09f9f157f3c91bb15821bb779696  0.0s
 => [internal] load metadata for docker.io/composer/composer:2-bin                                                 0.9s
 => [internal] load metadata for docker.io/library/golang:alpine                                                   0.9s
 => [internal] load .dockerignore                                                                                  0.0s
 => => transferring context: 218B                                                                                  0.0s
 => [stage-0  1/12] FROM docker.io/library/golang:alpine@sha256:ef18ee7117463ac1055f5a370ed18b8750f01589f13ea0b48  0.0s
 => FROM docker.io/composer/composer:2-bin@sha256:a80b4fafbb5427e57f40a4f845415185bdc0461e280066d27baefaf3734e7a9  0.0s
 => [internal] load build context                                                                                  0.0s
 => => transferring context: 25.69kB                                                                               0.0s
 => CACHED [stage-0  2/12] RUN apk update;  apk add --no-cache   alpine-sdk   autoconf   automake   bash   binuti  0.0s
 => CACHED [stage-0  3/12] COPY --from=composer/composer:2-bin /composer /usr/bin/composer                         0.0s
 => CACHED [stage-0  4/12] WORKDIR /go/src/app                                                                     0.0s
 => CACHED [stage-0  5/12] COPY go.mod go.sum ./                                                                   0.0s
 => ERROR [stage-0  6/12] RUN go mod download                                                                      0.7s
------
 > [stage-0  6/12] RUN go mod download:
0.694 go: github.com/beorn7/[email protected]: Get "https://proxy.golang.org/github.com/beorn7/perks/@v/v1.0.1.mod": read tcp 172.17.0.2:48860->142.250.199.49:443: read: connection reset by peer
------
static-builder-musl.Dockerfile:86
--------------------
  84 |     WORKDIR /go/src/app
  85 |     COPY go.mod go.sum ./
  86 | >>> RUN go mod download
  87 |
  88 |     WORKDIR /go/src/app/caddy
--------------------
ERROR: failed to solve: process "/bin/ash -eo pipefail -c go mod download" did not complete successfully: exit code: 1

May 14 '25 05:05 henderkes

You need to use docker buildx bake to build our Docker images: https://frankenphp.dev/docs/contributing/#building-docker-images-locally

The second error just looks like a network error on your side.

May 14 '25 05:05 dunglas

That must have changed, I was able to build the images without buildx before. Thanks though, good to know moving forward.

May 14 '25 09:05 henderkes

Errors here, too on building standalone Laravel

I have followed the steps as described here https://frankenphp.dev/docs/laravel/#laravel-apps-as-standalone-binaries

I have run this cmd: docker build -t static-laravel-app -f static-build.Dockerfile .

but after long output, the warning appeared and errors.

I don't know what to do, seems too complex to pick a path. Thanks for any clue.

Here is the output when warnings started

There appears several undefined reference

```
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libnghttp2.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libzip.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libwebp.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libwebpdecoder.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libwebpdemux.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libwebpmux.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libsharpyuv.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/liblz4.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libjpeg.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libturbojpeg.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libavif.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libfreetype.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libbrotlidec.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libbrotlienc.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libbrotlicommon.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libbz2.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libssl.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libcrypto.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libxml2.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libz.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libiconv.a is not portable!
286.4 
286.4 *** Warning: Linking the shared library libphp.la against the
286.4 *** static library /go/src/app/dist/static-php-cli/buildroot/lib/libcharset.a is not portable!
292.2 copying selected object files to avoid basename conflicts...
299.1 Installing PHP SAPI module:       embed
299.4 [17:16:26] [I] Patching phpize prefix
299.4 [17:16:26] [I] Replacing file with type[1]: /go/src/app/dist/static-php-cli/buildroot/bin/phpize
299.4 [17:16:26] [I] Replacing file with type[1]: /go/src/app/dist/static-php-cli/buildroot/bin/phpize
299.4 [17:16:26] [I] Patching php-config prefix and libs order
299.4 [17:16:26] [I] running embed sanity check
299.4 [17:16:26] [I] Entering dir: /go/src/app/dist/static-php-cli/source/embed-test
299.4 [17:16:26] [I] [EXEC] gcc -o embed embed.c -fPIC -I/go/src/app/dist/static-php-cli/buildroot/include -I/go/src/app/dist/static-php-cli/buildroot/include/php -I/go/src/app/dist/static-php-cli/buildroot/include/php/main -I/go/src/app/dist/static-php-cli/buildroot/include/php/TSRM -I/go/src/app/dist/static-php-cli/buildroot/include/php/Zend -I/go/src/app/dist/static-php-cli/buildroot/include/php/ext -L/go/src/app/dist/static-php-cli/buildroot/lib -lphp -lc -lnghttp2 -lzip -lwebp -lwebpdecoder -lwebpdemux -lwebpmux -lsharpyuv -llz4 -ljpeg -lturbojpeg -lavif -lfreetype -lbrotlidec -lbrotlienc -lbrotlicommon -lbz2 -lssl -lcrypto -lxml2 -lz -liconv -lcharset -ldl -lpthread -lm -static
299.4 [17:16:26] [I] Executed at: /go/src/app/dist/static-php-cli/src/SPC/builder/unix/UnixBuilderBase.php:191
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: /go/src/app/dist/static-php-cli/buildroot/lib/libxml2.a(encoding.c.o): in function `openIcuConverter':
300.3 encoding.c:(.text+0x118f): undefined reference to `ucnv_open_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x11ba): undefined reference to `UCNV_FROM_U_CALLBACK_STOP_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x11bf): undefined reference to `ucnv_setFromUCallBack_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x11de): undefined reference to `ucnv_open_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x11f7): undefined reference to `ucnv_close_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x1233): undefined reference to `UCNV_TO_U_CALLBACK_STOP_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x1238): undefined reference to `ucnv_setToUCallBack_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: /go/src/app/dist/static-php-cli/buildroot/lib/libxml2.a(encoding.c.o): in function `xmlUconvWrapper':
300.3 encoding.c:(.text+0x13ff): undefined reference to `ucnv_convertEx_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x148b): undefined reference to `ucnv_convertEx_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: /go/src/app/dist/static-php-cli/buildroot/lib/libxml2.a(encoding.c.o): in function `xmlFindCharEncodingHandler.localalias':
300.3 encoding.c:(.text+0x27a9): undefined reference to `ucnv_close_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x27b3): undefined reference to `ucnv_close_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x2839): undefined reference to `ucnv_close_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x2842): undefined reference to `ucnv_close_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: encoding.c:(.text+0x2869): undefined reference to `ucnv_close_77'
300.3 /usr/lib/gcc/x86_64-alpine-linux-musl/14.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: /go/src/app/dist/static-php-cli/buildroot/lib/libxml2.a(encoding.c.o):encoding.c:(.text+0x2873): more undefined references to `ucnv_close_77' follow
300.5 collect2: error: ld returned 1 exit status
300.5 [17:16:27] [I] Uncaught SPC\exception\RuntimeException: embed failed sanity check: build failed. Error message:  at /go/src/app/dist/static-php-cli/src/SPC/builder/unix/UnixBuilderBase.php(193)
300.5 [17:16:27] [I] #0 /go/src/app/dist/static-php-cli/src/SPC/builder/linux/LinuxBuilder.php(215): SPC\builder\unix\UnixBuilderBase->sanityCheck()
300.5 #1 /go/src/app/dist/static-php-cli/src/SPC/command/BuildPHPCommand.php(211): SPC\builder\linux\LinuxBuilder->buildPHP()
300.5 #2 /go/src/app/dist/static-php-cli/src/SPC/command/BaseCommand.php(106): SPC\command\BuildPHPCommand->handle()
300.5 #3 /go/src/app/dist/static-php-cli/vendor/symfony/console/Command/Command.php(326): SPC\command\BaseCommand->execute()
300.5 #4 /go/src/app/dist/static-php-cli/vendor/symfony/console/Application.php(1078): Symfony\Component\Console\Command\Command->run()
300.5 #5 /go/src/app/dist/static-php-cli/vendor/symfony/console/Application.php(324): Symfony\Component\Console\Application->doRunCommand()
300.5 #6 /go/src/app/dist/static-php-cli/vendor/symfony/console/Application.php(175): Symfony\Component\Console\Application->doRun()
300.5 #7 /go/src/app/dist/static-php-cli/bin/spc(31): Symfony\Component\Console\Application->run()
300.5 #8 {main}
------

 1 warning found (use docker --debug to expand):
 - FromPlatformFlagConstDisallowed: FROM --platform flag should not use constant value "linux/amd64" (line 1)
static-build.Dockerfile:23
--------------------
  21 |     # Build the static binary
  22 |     WORKDIR /go/src/app/
  23 | >>> RUN EMBED=dist/app/ ./build-static.sh
--------------------
ERROR: failed to solve: process "/bin/ash -eo pipefail -c EMBED=dist/app/ ./build-static.sh" did not complete successfully: exit code: 1

View build details: docker-desktop://dashboard/build/desktop-linux/desktop-linux/qoqkmiwdpu9ziq1h5tri9r1mw
```

May 14 '25 17:05 danve

Same error as the opening poster, but I still cannot reproduce it when manually specifying the extensions.

May 15 '25 01:05 henderkes

Ah, I think I may know why. The Docker script probably uses pre built libraries, which were built with icu support. We don't have a good way of separating pre built libraries by feature set yet. @crazywhalecc what do we do with this?

May 15 '25 01:05 henderkes

@danve @ecampere while we're working on a fix, please add the intl extension to the list. Alternatively, you'll have to change the images build-static.sh and remove --prefer-prebuilt.

May 15 '25 09:05 henderkes

Was fixed upstream, we no longer publish prebuilt libraries with optional dependencies.

Oct 26 '25 08:10 henderkes