Error building with Make

[Crell]

Trying to run make ends with this error:

+ USERID=
+ docker-compose -p phpwasm run --rm -e PKG_CONFIG_PATH=/src/lib/lib/pkgconfig -e PRELOAD_ASSETS=preload/ -e INITIAL_MEMORY=1024MB -e ENVIRONMENT=web -e EMCC_ALLOW_FASTCOMP=1 emscripten-builder cp -v build/php-web.js build/php-web.wasm ./dist
Creating phpwasm_emscripten-builder_run ... done
cp: target './dist' is not a directory
ERROR: 1
make: *** [Makefile:203: php-web.wasm] Error 1

When I try to run the php-web.wasm target's dependencies directly, I see there is a warning from SQLite:

+ USERID=
+ docker-compose -p phpwasm run --rm -e PKG_CONFIG_PATH=/src/lib/lib/pkgconfig -e PRELOAD_ASSETS=preload/ -e INITIAL_MEMORY=1024MB -e ENVIRONMENT=web -e EMCC_ALLOW_FASTCOMP=1 -w /src/third_party/php7.4-src/ emscripten-builder emcc -O3 -I . -I Zend -I main -I TSRM/ -I /src/third_party/libxml2 /src/source/pib_eval.c -o /src/lib/pib_eval.o
Creating phpwasm_emscripten-builder_run ... done
emcc: warning: Assuming object file output in the absence of `-c`, based on output filename. Add with `-c` or `-r` to avoid this warning [-Wemcc]
In file included from /src/source/pib_eval.c:11:
/src/source/sqlite3.h:162:23: warning: tentative array definition assumed to have one element
SQLITE_API const char sqlite3_version[];
                      ^
1 warning generated.

I don't know if that's related or not.

[seanmorris]

Is the problem still occurring with the latest updates?

[jimmywarting]

I got i different error message, i think i was able to get further

Now type 'make' to compile libxml2.USERID= docker-compose -p phpwasm run --rm -e PKG_CONFIG_PATH=/src/lib/lib/pkgconfig -e PRELOAD_ASSETS='preload/' -e INITIAL_MEMORY=1024MB -e ENVIRONMENT=web-drupal -e PHP_BRANCH=php-8.2.4 -e EMCC_CORES=`nproc` -e EMCC_ALLOW_FASTCOMP=1 -w /src/third_party/libxml2/ emscripten-builder emconfigure ./configure --with-http=no --with-ftp=no --with-python=no --with-threads=no --enable-shared=no --prefix=/src/lib/ | (which pv > /dev/null && pv --name 'lib/lib/libxml2.la' || cat)
+ which pv
++ nproc
bash: nproc: command not found
+ USERID=
+ docker-compose -p phpwasm run --rm -e PKG_CONFIG_PATH=/src/lib/lib/pkgconfig -e PRELOAD_ASSETS=preload/ -e INITIAL_MEMORY=1024MB -e ENVIRONMENT=web-drupal -e PHP_BRANCH=php-8.2.4 -e EMCC_CORES= -e EMCC_ALLOW_FASTCOMP=1 -w /src/third_party/libxml2/ emscripten-builder emconfigure ./configure --with-http=no --with-ftp=no --with-python=no --with-threads=no --enable-shared=no --prefix=/src/lib/
+ cat
checking whether to enable maintainer-specific portions of Makefiles... yes
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
extra=v2.9.10
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make supports nested variables... (cached) yes
checking for gcc... /emsdk_portable/fastcomp/emscripten/emcc
checking whether the C compiler works... no
configure: error: in `/src/third_party/libxml2':
configure: error: C compiler cannot create executables
See `config.log' for more details
configure: ./configure --with-http=no --with-ftp=no --with-python=no --with-threads=no --enable-shared=no --prefix=/src/lib/
make: *** [lib/lib/libxml2.la] Error 77

[rhildred]

Did you ever get past your error @jimmywarting ? I am experiencing the same thing. When I do a docker-compose run emconfigure works for libxml2, but not from the make command.

[rhildred]

Hi Again:

I got further. During troubleshooting I noticed we both had bash: nproc: command not found. I fixed that first by brew install coreutils. I don't think it made any difference though.

I deleted the original from and uncommented the below.

FROM emscripten/emsdk:latest
MAINTAINER Sean Morris <sean@seanmorr.is>

That way I got up to:

Building PHP for web (drupal)
++ nproc
+ USERID=
+ docker-compose -p phpwasm run --rm -e PKG_CONFIG_PATH=/src/lib/lib/pkgconfig -e PRELOAD_ASSETS=preload/ -e INITIAL_MEMORY=1024MB -e ENVIRONMENT=web-drupal -e PHP_BRANCH=php-8.2.4 -e EMCC_CORES=4 -e EMCC_ALLOW_FASTCOMP=1 -w /src/third_party/php8.2-src/ emscripten-builder emcc -O3 -o ../../build/php-web-drupal.js --llvm-lto 2 -s 'EXPORTED_FUNCTIONS=["_pib_init", "_pib_destroy", "_pib_run", "_pib_exec" "_pib_refresh", "_main", "_php_embed_init", "_php_embed_shutdown", "_php_embed_shutdown", "_zend_eval_string", "_exec_callback", "_del_callback"]' -s 'EXPORTED_RUNTIME_METHODS=["ccall", "UTF8ToString", "lengthBytesUTF8"]' -s ENVIRONMENT=web-drupal -s MAXIMUM_MEMORY=2048mb -s INITIAL_MEMORY=1024MB -s ALLOW_MEMORY_GROWTH=1 -s ASSERTIONS=0 -s ERROR_ON_UNDEFINED_SYMBOLS=0 -s 'EXPORT_NAME='\''PHP'\''' -s MODULARIZE=1 -s INVOKE_RUN=0 -s USE_ZLIB=1 /src/lib/pib_eval.o /src/lib/libphp.a /src/lib/lib/libxml2.a --preload-file preload/ -s ENVIRONMENT=web
emcc:WARNING: --llvm-lto ignored when using llvm backend
cache:INFO: generating system asset: symbol_lists/9e524983b986714c65f6ca072c93f38a4827e441.json... (this will be cached in "/emsdk/upstream/emscripten/cache/symbol_lists/9e524983b986714c65f6ca072c93f38a4827e441.json" for subsequent builds)
cache:INFO:  - ok
ports:INFO: retrieving port: zlib from https://github.com/madler/zlib/archive/refs/tags/v1.2.13.tar.gz
ports:INFO: unpacking port: zlib
cache:INFO: generating port: sysroot/lib/wasm32-emscripten/libz.a... (this will be cached in "/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/libz.a" for subsequent builds)
system_libs:INFO: compiled 15 inputs
cache:INFO:  - ok
wasm-ld: error: /src/lib/libphp.a(internal_functions.o): undefined symbol: pdo_sqlite_module_entry
emcc: error: '/emsdk/upstream/bin/wasm-ld -o ../../build/php-web-drupal.wasm /src/lib/pib_eval.o /src/lib/libphp.a /src/lib/lib/libxml2.a -L/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten /emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/libz.a -lGL -lal -lhtml5 -lstubs -lnoexit -lc -ldlmalloc -lcompiler_rt -lc++-noexcept -lc++abi-noexcept -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /tmp/tmpvsg1gk4llibemscripten_js_symbols.so --import-undefined --strip-debug --export-if-defined=pib_init --export-if-defined=pib_destroy --export-if-defined=pib_run "--export-if-defined=pib_exec\" \"_pib_refresh" --export-if-defined=main --export-if-defined=php_embed_init --export-if-defined=php_embed_shutdown --export-if-defined=zend_eval_string --export-if-defined=exec_callback --export-if-defined=del_callback --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=__main_argc_argv --export-if-defined=stackSave --export-if-defined=stackRestore --export-if-defined=stackAlloc --export-if-defined=__errno_location --export-if-defined=__get_temp_ret --export-if-defined=__set_temp_ret --export-if-defined=malloc --export-if-defined=free --export-if-defined=__wasm_call_ctors --export-table -z stack-size=65536 --initial-memory=1073741824 --max-memory=2147483648 --no-entry --global-base=1024' failed (returned 1)
make: *** [php-web-drupal.wasm] Error 1

[rhildred]

I deleted my working folder and started over as I couldn't remember if I tested after brew install coreutils

Now I get undefined symbol: pdo_sqlite_module_entry error, which is the same as when I added the extra step:

• docker-compose -p phpwasm run --rm -e PKG_CONFIG_PATH=/src/lib/lib/pkgconfig -e PRELOAD_ASSETS=preload/ -e INITIAL_MEMORY=1024MB -e ENVIRONMENT=web-drupal -e PHP_BRANCH=php-8.2.4 -e EMCC_CORES=4 -e EMCC_ALLOW_FASTCOMP=1 -w /src/third_party/php8.2-src/ emscripten-builder emcc -O3 -o ../../build/php-web-drupal.js --llvm-lto 2 -s 'EXPORTED_FUNCTIONS=["_pib_init", "_pib_destroy", "_pib_run", "_pib_exec" "_pib_refresh", "_main", "_php_embed_init", "_php_embed_shutdown", "_php_embed_shutdown", "_zend_eval_string", "_exec_callback", "_del_callback"]' -s 'EXPORTED_RUNTIME_METHODS=["ccall", "UTF8ToString", "lengthBytesUTF8"]' -s ENVIRONMENT=web-drupal -s MAXIMUM_MEMORY=2048mb -s INITIAL_MEMORY=1024MB -s ALLOW_MEMORY_GROWTH=1 -s ASSERTIONS=0 -s ERROR_ON_UNDEFINED_SYMBOLS=0 -s 'EXPORT_NAME='''PHP'''' -s MODULARIZE=1 -s INVOKE_RUN=0 -s USE_ZLIB=1 /src/lib/pib_eval.o /src/lib/libphp.a /src/lib/lib/libxml2.a --preload-file preload/ -s ENVIRONMENT=web
  emcc:WARNING: --llvm-lto ignored when using llvm backend
  wasm-ld: error: /src/lib/libphp.a(internal_functions.o): undefined symbol: pdo_sqlite_module_entry
  emcc: error: '/emsdk/upstream/bin/wasm-ld -o ../../build/php-web-drupal.wasm /src/lib/pib_eval.o /src/lib/libphp.a /src/lib/lib/libxml2.a -L/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten /emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/libz.a -lGL -lal -lhtml5 -lstubs -lnoexit -lc -ldlmalloc -lcompiler_rt -lc++-noexcept -lc++abi-noexcept -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /tmp/tmp69p5suowlibemscripten_js_symbols.so --import-undefined --strip-debug --export-if-defined=pib_init --export-if-defined=pib_destroy --export-if-defined=pib_run "--export-if-defined=pib_exec" "_pib_refresh" --export-if-defined=main --export-if-defined=php_embed_init --export-if-defined=php_embed_shutdown --export-if-defined=zend_eval_string --export-if-defined=exec_callback --export-if-defined=del_callback --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=__main_argc_argv --export-if-defined=stackSave --export-if-defined=stackRestore --export-if-defined=stackAlloc --export-if-defined=__errno_location --export-if-defined=__get_temp_ret --export-if-defined=__set_temp_ret --export-if-defined=malloc --export-if-defined=free --export-if-defined=__wasm_call_ctors --export-table -z stack-size=65536 --initial-memory=1073741824 --max-memory=2147483648 --no-entry --global-base=1024' failed (returned 1)
  make: *** [php-web-drupal.wasm] Error 1

[rhildred]

It still fails in the same place. I reasoned that it was broken because of emsdk no longer including fastcomp (emscripten-core/emscripten#11319). So I changed the dockerfile to have:

RUN set -euxo pipefail;\
	apt-get update; \
	emsdk install 1.39.18-fastcomp; \

Unfortunately it errors in the same place with undefined symbol: pdo_sqlite_module_entry still. My product idea depends on being able to use this wordpress plugin so I will keep on trying. Since it wasn't working anyways I moved both places in the dockerfile to:

FROM emscripten/emsdk:latest
MAINTAINER Sean Morris <sean@seanmorr.is>

SHELL ["/bin/bash", "-c"]

RUN set -euxo pipefail;\
	apt-get update; \
	emsdk install latest; \

I would really appreciate any help!!!!

[seanmorris]

@rhildred Can you pull the latest master and give it another shot? I've made some changes and its now building with emscripten 3.1.43.

[rhildred]

Hi @seanmorris . Thanks for the update. I will give it a try.