Undefined reference to `ffi_type_pointer' during run of makefile command

[nick-melton]

Description

Description
Makefile script could not load the constants from the libffi during make command

Environment

Amazon Linux
PHP 8.3.16
yum install --enablerepo=remi,remi-php83 -y php-devel librdkafka libxml2-devel sqlite-devel re2c autoconf bison make libtool

Step to reproduce:

1. echo "extension=ffi.so" >> /opt/bref/php/conf.d/bref.ini
2. ./buildconf
3. cd /usr/src/php-src/ext/ffi
4. /usr/bin/phpize
5. cd /usr/src/php-src
6. ./configure --with-ffi --with-config-file-scan-dir=/opt/bref/etc/php/conf.d --with-libdir=lib64 FFI_LIBS=/usr/src/php-src/ect/ffi FFI_CFLAGS=/usr/src/libffi/include
7. make

Current behavior

ext/ffi/ffi.o: In function `zend_ffi_face_struct_add_fields':
/usr/src/php-src/ext/ffi/ffi.c:392: undefined reference to `ffi_type_pointer'
/usr/src/php-src/ext/ffi/ffi.c:389: undefined reference to `ffi_type_uint64'
/usr/src/php-src/ext/ffi/ffi.c:385: undefined reference to `ffi_type_uint32'
/usr/src/php-src/ext/ffi/ffi.c:381: undefined reference to `ffi_type_uint16'
/usr/src/php-src/ext/ffi/ffi.c:377: undefined reference to `ffi_type_uint8'
/usr/src/php-src/ext/ffi/ffi.c:370: undefined reference to `ffi_type_longdouble'
/usr/src/php-src/ext/ffi/ffi.c:366: undefined reference to `ffi_type_double'
/usr/src/php-src/ext/ffi/ffi.c:363: undefined reference to `ffi_type_float'
/usr/src/php-src/ext/ffi/ffi.c:409: undefined reference to `ffi_type_void'
ext/ffi/ffi.o: In function `zend_ffi_get_type':
/usr/src/php-src/ext/ffi/ffi.c:457: undefined reference to `ffi_type_sint8'
/usr/src/php-src/ext/ffi/ffi.c:455: undefined reference to `ffi_type_uint8'
/usr/src/php-src/ext/ffi/ffi.c:447: undefined reference to `ffi_type_float'
/usr/src/php-src/ext/ffi/ffi.c:463: undefined reference to `ffi_type_uint32'
/usr/src/php-src/ext/ffi/ffi.c:465: undefined reference to `ffi_type_sint32'
/usr/src/php-src/ext/ffi/ffi.c:467: undefined reference to `ffi_type_uint64'
/usr/src/php-src/ext/ffi/ffi.c:469: undefined reference to `ffi_type_sint64'
/usr/src/php-src/ext/ffi/ffi.c:459: undefined reference to `ffi_type_uint16'
/usr/src/php-src/ext/ffi/ffi.c:461: undefined reference to `ffi_type_sint16'
/usr/src/php-src/ext/ffi/ffi.c:452: undefined reference to `ffi_type_longdouble'
/usr/src/php-src/ext/ffi/ffi.c:473: undefined reference to `ffi_type_void'
/usr/src/php-src/ext/ffi/ffi.c:471: undefined reference to `ffi_type_pointer'
/usr/src/php-src/ext/ffi/ffi.c:449: undefined reference to `ffi_type_double'
ext/ffi/ffi.o: In function `zend_ffi_callback_hash_dtor':
/usr/src/php-src/ext/ffi/ffi.c:924: undefined reference to `ffi_closure_free'
ext/ffi/ffi.o: In function `zend_ffi_create_callback':
/usr/src/php-src/ext/ffi/ffi.c:1040: undefined reference to `ffi_closure_alloc'
/usr/src/php-src/ext/ffi/ffi.c:1087: undefined reference to `ffi_prep_cif'
/usr/src/php-src/ext/ffi/ffi.c:1092: undefined reference to `ffi_prep_closure_loc'
/usr/src/php-src/ext/ffi/ffi.c:1104: undefined reference to `ffi_closure_free'
ext/ffi/ffi.o: In function `zend_ffi_pass_arg':
/usr/src/php-src/ext/ffi/ffi.c:2581: undefined reference to `ffi_type_float'
/usr/src/php-src/ext/ffi/ffi.c:2586: undefined reference to `ffi_type_double'
/usr/src/php-src/ext/ffi/ffi.c:2592: undefined reference to `ffi_type_double'
/usr/src/php-src/ext/ffi/ffi.c:2598: undefined reference to `ffi_type_uint8'
/usr/src/php-src/ext/ffi/ffi.c:2603: undefined reference to `ffi_type_sint8'
/usr/src/php-src/ext/ffi/ffi.c:2608: undefined reference to `ffi_type_uint16'
/usr/src/php-src/ext/ffi/ffi.c:2613: undefined reference to `ffi_type_sint16'
/usr/src/php-src/ext/ffi/ffi.c:2618: undefined reference to `ffi_type_uint32'
/usr/src/php-src/ext/ffi/ffi.c:2623: undefined reference to `ffi_type_sint32'
/usr/src/php-src/ext/ffi/ffi.c:2628: undefined reference to `ffi_type_uint64'
/usr/src/php-src/ext/ffi/ffi.c:2633: undefined reference to `ffi_type_sint64'
/usr/src/php-src/ext/ffi/ffi.c:2676: undefined reference to `ffi_type_uint8'
/usr/src/php-src/ext/ffi/ffi.c:2681: undefined reference to `ffi_type_sint8'
/usr/src/php-src/ext/ffi/ffi.c:2637: undefined reference to `ffi_type_pointer'
/usr/src/php-src/ext/ffi/ffi.c:2681: undefined reference to `ffi_type_sint8'
ext/ffi/ffi.o: In function `zif_ffi_trampoline':
/usr/src/php-src/ext/ffi/ffi.c:2853: undefined reference to `ffi_prep_cif'
/usr/src/php-src/ext/ffi/ffi.c:2853: undefined reference to `ffi_prep_cif'
/usr/src/php-src/ext/ffi/ffi.c:2862: undefined reference to `ffi_call'
/usr/src/php-src/ext/ffi/ffi.c:2816: undefined reference to `ffi_prep_cif_var'
ext/ffi/ffi.o: In function `zend_ffi_pass_var_arg':
/usr/src/php-src/ext/ffi/ffi.c:2741: undefined reference to `ffi_type_pointer'
ext/ffi/ffi.o: In function `zif_ffi_trampoline':
/usr/src/php-src/ext/ffi/ffi.c:2816: undefined reference to `ffi_prep_cif_var'
ext/ffi/ffi.o: In function `zend_ffi_pass_var_arg':
/usr/src/php-src/ext/ffi/ffi.c:2737: undefined reference to `ffi_type_double'
/usr/src/php-src/ext/ffi/ffi.c:2724: undefined reference to `ffi_type_uint8'
/usr/src/php-src/ext/ffi/ffi.c:2732: undefined reference to `ffi_type_sint64'
/usr/src/php-src/ext/ffi/ffi.c:2720: undefined reference to `ffi_type_uint8'
/usr/src/php-src/ext/ffi/ffi.c:2716: undefined reference to `ffi_type_pointer'
collect2: error: ld returned 1 exit status
make: *** [sapi/cli/php] Error 1

Expected outcome

make command finishes successfully so I can run make install as well and to have ffi extension working normally as expected

More info

Initially I already had an installed php in my docker image. I'm tied with this implementation so I gotta use PHP 8.3.16 and bref/php-83 with OS Amazon Linux 2, which is pretty close to CentOS. So I've downloaded your repo, installed appropriate dependencies (libxml2-devel, sqlite-devel, libffi-devel, php-devel, re2c, bison, autoconf, make, libtool, librdkafka), built the configure file, initialized ffi extension.

Then I ran ./configure with appropriate parameters and also passed a few environment variables with paths to the libs (in particular I passed the path to the libffi to FFI_CFLAGS as I assumed that it'll fetch these constants from there). By the way, I've downloaded that libffi as well, because once I installed libffi-devel it just created libffi.so in /usr/lib64

Could you please help me to figure out which values should I pass to the environment variables to make it work? I assume I'm passing some values wrong way, but can't figure out on how to make it right

PHP Version

PHP 8.3.16

Operating System

Amazon Linux 2

[cmb69]

ext/ffi uses pkgconfig to find the appropriate settings for the system. I suggest you run configure without these additional env variables, and check the output (possibly also config.log). If libffi cannot be found, check where libffi.pc is located, and add that to PKG_CONFIG_PATH. Then try again.

Anyway, this isn't an appropriate channel to ask for support. See https://www.php.net/support.php instead (or maybe ask on stackoverflow).

[nick-melton]

thanks, it helped me to deal with this error! For me this version worked out:

./configure --with-ffi --with-config-file-scan-dir=/opt/bref/etc/php/conf.d PKG_CONFIG_PATH=/usr/src. So I just passed the confid file path (but I guess it was optional as well) and passed /usr/src which is the folder where I kept my libffi folder