build php

[hexiuzhe2015]

Description

php8.4.7 zts
Compile pdo_mysql make and make install are no problem but
php -v php warning: php startup: invalid library (maybe not a php library) 'pdo_mysql' is unknown on line 0

[nielsdos]

We'll need a little bit more information I'm afraid.

Did you first run ./buildconf before running the ./configure command?
Can you share the ./configure command line that you used along with config.log?
Are you sure you're loading the pdo_mysql library from the right location?

[hexiuzhe2015]

This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by configure, which was
generated by GNU Autoconf 2.71. Invocation command line was

$ ./configure --with-pdo-mysql=mysqlnd

---------

Platform.

---------

hostname = imwox
uname -m = x86_64
uname -r = 6.1.0-34-amd64
uname -s = Linux
uname -v = #1 SMP PREEMPT_DYNAMIC Debian 6.1.135-1 (2025-04-25)

/usr/bin/uname -p = unknown
/bin/uname -X = unknown

/bin/arch = x86_64
/usr/bin/arch -k = unknown
/usr/convex/getsysinfo = unknown
/usr/bin/hostinfo = unknown
/bin/machine = unknown
/usr/bin/oslevel = unknown
/bin/universe = unknown

PATH: /usr/local/bin/
PATH: /usr/bin/
PATH: /bin/
PATH: /usr/local/games/
PATH: /usr/games/
PATH: /home/zheye/.config/composer/vendor/bin/

-----------

Core tests.

-----------

configure:2491: looking for aux files: config.guess config.sub
configure:2504: trying ./build/
configure:2533: ./build/config.guess found
configure:2533: ./build/config.sub found
configure:2650: checking for grep that handles long lines and -e
configure:2714: result: /usr/bin/grep
configure:2719: checking for egrep
configure:2787: result: /usr/bin/grep -E
configure:2792: checking for a sed that does not truncate output
configure:2862: result: /usr/bin/sed
configure:2939: checking build system type
configure:2954: result: x86_64-pc-linux-gnu
configure:2974: checking host system type
configure:2988: result: x86_64-pc-linux-gnu
configure:3008: checking target system type
configure:3022: result: x86_64-pc-linux-gnu
configure:3074: checking for gawk
configure:3110: result: no
configure:3074: checking for nawk
configure:3096: found /usr/bin/nawk
configure:3107: result: nawk
configure:3129: checking if nawk is broken
configure:3139: result: no
configure:3213: checking for pkg-config
configure:3236: found /usr/bin/pkg-config
configure:3248: result: /usr/bin/pkg-config
configure:3273: checking pkg-config is at least version 0.9.0
configure:3276: result: yes
configure:3352: checking for cc
configure:3373: found /usr/bin/cc
configure:3384: result: cc
configure:3415: checking for C compiler version
configure:3424: cc --version >&5
cc (Debian 12.2.0-14) 12.2.0
Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

configure:3435: $? = 0
configure:3424: cc -v >&5
Using built-in specs.
COLLECT_GCC=cc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/12/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 12.2.0-14' --with-bugurl=file:///usr/share/doc/gcc-12/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-12 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-12-bTRWOB/gcc-12-12.2.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-12-bTRWOB/gcc-12-12.2.0/debian/tmp-gcn/usr --enable-offload-defaulted --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.2.0 (Debian 12.2.0-14)
... rest of stderr output deleted ...
configure:3435: $? = 0
configure:3424: cc -V >&5
cc: error: unrecognized command-line option '-V'
cc: fatal error: no input files
compilation terminated.
configure:3435: $? = 1
configure:3424: cc -qversion >&5
cc: error: unrecognized command-line option '-qversion'; did you mean '--version'?
cc: fatal error: no input files
compilation terminated.
configure:3435: $? = 1
configure:3424: cc -version >&5
cc: error: unrecognized command-line option '-version'
cc: fatal error: no input files
compilation terminated.
configure:3435: $? = 1
configure:3455: checking whether the C compiler works
configure:3477: cc conftest.c >&5
configure:3481: $? = 0
configure:3531: result: yes
configure:3534: checking for C compiler default output file name
configure:3536: result: a.out
configure:3542: checking for suffix of executables
configure:3549: cc -o conftest conftest.c >&5
configure:3553: $? = 0
configure:3576: result:
configure:3598: checking whether we are cross compiling
configure:3606: cc -o conftest conftest.c >&5
configure:3610: $? = 0
configure:3617: ./conftest
configure:3621: $? = 0
configure:3636: result: no
configure:3641: checking for suffix of object files
configure:3664: cc -c conftest.c >&5
configure:3668: $? = 0
configure:3690: result: o
configure:3694: checking whether the compiler supports GNU C
configure:3714: cc -c conftest.c >&5
configure:3714: $? = 0
configure:3724: result: yes
configure:3735: checking whether cc accepts -g
configure:3756: cc -c -g conftest.c >&5
configure:3756: $? = 0
configure:3800: result: yes
configure:3820: checking for cc option to enable C11 features
configure:3835: cc -c -g -O2 conftest.c >&5
configure:3835: $? = 0
configure:3853: result: none needed
configure:3969: checking how to run the C preprocessor
configure:3995: cc -E conftest.c
configure:3995: $? = 0
configure:4010: cc -E conftest.c
conftest.c:9:10: fatal error: ac_nonexistent.h: No such file or directory
9 | #include <ac_nonexistent.h>
| ^~~~~~~~~~~~~~~~~~
compilation terminated.
configure:4010: $? = 1
configure: failed program was:
| /* confdefs.h /
| #define PACKAGE_NAME ""
| #define PACKAGE_TARNAME ""
| #define PACKAGE_VERSION ""
| #define PACKAGE_STRING ""
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| / end confdefs.h. /
| #include <ac_nonexistent.h>
configure:4037: result: cc -E
configure:4051: cc -E conftest.c
configure:4051: $? = 0
configure:4066: cc -E conftest.c
conftest.c:9:10: fatal error: ac_nonexistent.h: No such file or directory
9 | #include <ac_nonexistent.h>
| ^~~~~~~~~~~~~~~~~~
compilation terminated.
configure:4066: $? = 1
configure: failed program was:
| / confdefs.h /
| #define PACKAGE_NAME ""
| #define PACKAGE_TARNAME ""
| #define PACKAGE_VERSION ""
| #define PACKAGE_STRING ""
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| / end confdefs.h. /
| #include <ac_nonexistent.h>
configure:4099: checking for icc
configure:4109: result: no
configure:4123: checking for suncc
configure:4133: result: no
configure:4151: checking for system library directory
configure:4167: result: lib
configure:4174: checking if compiler supports -Wl,-rpath,
configure:4194: cc -o conftest -g -O2 conftest.c -Wl,-rpath,/usr/lib >&5
configure:4194: $? = 0
configure:4205: result: yes
configure:4324: checking for PHP prefix
configure:4326: result: /usr/local
configure:4328: checking for PHP includes
configure:4330: result: -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib
configure:4332: checking for PHP extension directory
configure:4334: result: /usr/local/lib/php/extensions/no-debug-zts-20240924
configure:4336: checking for PHP installed headers prefix
configure:4338: result: /usr/local/include/php
configure:4341: checking if debugging is enabled
configure:4364: result: no
configure:4367: checking if PHP is built with thread safety (ZTS)
configure:4390: result: yes
configure:4466: result:
configure:4468: result: �[1mConfiguring extension�[m
configure:4475: checking for MySQL support for PDO
configure:4516: result: yes, shared
configure:4523: checking for MySQL Unix socket location
configure:4536: result:
configure:4757: checking for PDO includes
configure:4771: result: /usr/local/include/php/ext
configure:5102: result:
configure:5104: result: �[1mConfiguring libtool�[m
configure:5189: checking for a sed that does not truncate output
configure:5244: result: /usr/bin/sed
configure:5259: checking for ld used by cc
configure:5327: result: /usr/bin/ld
configure:5334: checking if the linker (/usr/bin/ld) is GNU ld
configure:5350: result: yes
configure:5355: checking for /usr/bin/ld option to reload object files
configure:5363: result: -r
configure:5381: checking for BSD-compatible nm
configure:5431: result: /usr/bin/nm -B
configure:5435: checking whether ln -s works
configure:5439: result: yes
configure:5446: checking how to recognize dependent libraries
configure:5633: result: pass_all
configure:5718: cc -c -g -O2 conftest.c >&5
configure:5721: $? = 0
configure:5856: checking for stdio.h
configure:5856: cc -c -g -O2 conftest.c >&5
configure:5856: $? = 0
configure:5856: result: yes
configure:5856: checking for stdlib.h
configure:5856: cc -c -g -O2 conftest.c >&5
configure:5856: $? = 0
configure:5856: result: yes
configure:5856: checking for string.h
configure:5856: cc -c -g -O2 conftest.c >&5
configure:5856: $? = 0
configure:5856: result: yes
configure:5856: checking for inttypes.h
configure:5856: cc -c -g -O2 conftest.c >&5
configure:5856: $? = 0
configure:5856: result: yes
configure:5856: checking for stdint.h
configure:5856: cc -c -g -O2 conftest.c >&5
configure:5856: $? = 0
configure:5856: result: yes
configure:5856: checking for strings.h
configure:5856: cc -c -g -O2 conftest.c >&5
configure:5856: $? = 0
configure:5856: result: yes
configure:5856: checking for sys/stat.h
configure:5856: cc -c -g -O2 conftest.c >&5
configure:5856: $? = 0
configure:5856: result: yes
configure:5856: checking for sys/types.h
configure:5856: cc -c -g -O2 conftest.c >&5
configure:5856: $? = 0
configure:5856: result: yes
configure:5856: checking for unistd.h
configure:5856: cc -c -g -O2 conftest.c >&5
configure:5856: $? = 0
configure:5856: result: yes
configure:5881: checking for dlfcn.h
configure:5881: cc -c -g -O2 conftest.c >&5
configure:5881: $? = 0
configure:5881: result: yes
configure:5900: checking the maximum length of command line arguments
configure:6013: result: 1572864
configure:6025: checking command to parse /usr/bin/nm -B output from cc object
configure:6131: cc -c -g -O2 conftest.c >&5
configure:6134: $? = 0
configure:6138: /usr/bin/nm -B conftest.o | sed -n -e 's/^.[ ]([ABCDGIRSTW][ABCDGIRSTW])[ ][ ]([_A-Za-z][_A-Za-z0-9]*)$/\1 \2 \2/p' > conftest.nm
configure:6141: $? = 0
configure:6193: cc -o conftest -g -O2 conftest.c conftstm.o >&5
configure:6196: $? = 0
configure:6234: result: ok
configure:6238: checking for objdir
configure:6254: result: .libs
configure:6351: checking for ar
configure:6372: found /usr/bin/ar
configure:6383: result: ar
configure:6453: checking for ranlib
configure:6474: found /usr/bin/ranlib
configure:6485: result: ranlib
configure:6555: checking for strip
configure:6576: found /usr/bin/strip
configure:6587: result: strip
configure:7181: checking if cc supports -fno-rtti -fno-exceptions
configure:7200: cc -c -g -O2 -fno-rtti -fno-exceptions conftest.c >&5
cc1: warning: command-line option '-fno-rtti' is valid for C++/D/ObjC++ but not for C
configure:7204: $? = 0
configure:7217: result: no
configure:7232: checking for cc option to produce PIC
configure:7472: result: -fPIC
configure:7480: checking if cc PIC flag -fPIC works
configure:7499: cc -c -g -O2 -fPIC -DPIC conftest.c >&5
configure:7503: $? = 0
configure:7516: result: yes
configure:7544: checking if cc static flag -static works
configure:7573: result: yes
configure:7583: checking if cc supports -c -o file.o
configure:7605: cc -c -g -O2 -o out/conftest2.o conftest.c >&5
configure:7609: $? = 0
configure:7631: result: yes
configure:7657: checking whether the cc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries
configure:8585: result: yes
configure:8606: checking whether -lc should be explicitly linked in
configure:8611: cc -c -g -O2 conftest.c >&5
configure:8614: $? = 0
configure:8629: cc -shared conftest.o -v -Wl,-soname -Wl,conftest -o conftest 2>&1 | grep -lc >/dev/null 2>&1
configure:8632: $? = 0
configure:8644: result: no
configure:8652: checking dynamic linker characteristics
configure:9261: result: GNU/Linux ld.so
configure:9287: checking how to hardcode library paths into programs
configure:9312: result: immediate
configure:9326: checking whether stripping libraries is possible
configure:9331: result: yes
configure:9846: checking if libtool supports shared libraries
configure:9848: result: yes
configure:9851: checking whether to build shared libraries
configure:9872: result: yes
configure:9875: checking whether to build static libraries
configure:9879: result: no
configure:9973: result:
creating libtool
configure:13607: result:
configure:13609: result: �[1mGenerating files�[m
configure:13726: creating build directories
configure:13731: creating Makefile
configure:13747: patching config.h.in
configure:13758: creating ./config.status

----------------------

Running config.status.

----------------------

This file was extended by config.status, which was
generated by GNU Autoconf 2.71. Invocation command line was

CONFIG_FILES =
CONFIG_HEADERS =
CONFIG_LINKS =
CONFIG_COMMANDS =
$ ./config.status

on imwox

config.status:671: creating config.h

----------------

Cache variables.

----------------

ac_cv_build=x86_64-pc-linux-gnu
ac_cv_c_compiler_gnu=yes
ac_cv_env_CC_set=
ac_cv_env_CC_value=
ac_cv_env_CFLAGS_set=
ac_cv_env_CFLAGS_value=
ac_cv_env_CPPFLAGS_set=
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CPP_set=
ac_cv_env_CPP_value=
ac_cv_env_LDFLAGS_set=
ac_cv_env_LDFLAGS_value=
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_PKG_CONFIG_LIBDIR_set=
ac_cv_env_PKG_CONFIG_LIBDIR_value=
ac_cv_env_PKG_CONFIG_PATH_set=
ac_cv_env_PKG_CONFIG_PATH_value=
ac_cv_env_PKG_CONFIG_set=
ac_cv_env_PKG_CONFIG_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_header_dlfcn_h=yes
ac_cv_header_inttypes_h=yes
ac_cv_header_stdint_h=yes
ac_cv_header_stdio_h=yes
ac_cv_header_stdlib_h=yes
ac_cv_header_string_h=yes
ac_cv_header_strings_h=yes
ac_cv_header_sys_stat_h=yes
ac_cv_header_sys_types_h=yes
ac_cv_header_unistd_h=yes
ac_cv_host=x86_64-pc-linux-gnu
ac_cv_objext=o
ac_cv_path_EGREP='/usr/bin/grep -E'
ac_cv_path_GREP=/usr/bin/grep
ac_cv_path_SED=/usr/bin/sed
ac_cv_path_ac_pt_PKG_CONFIG=/usr/bin/pkg-config
ac_cv_prog_AWK=nawk
ac_cv_prog_CPP='cc -E'
ac_cv_prog_ac_ct_AR=ar
ac_cv_prog_ac_ct_CC=cc
ac_cv_prog_ac_ct_RANLIB=ranlib
ac_cv_prog_ac_ct_STRIP=strip
ac_cv_prog_cc_c11=
ac_cv_prog_cc_g=yes
ac_cv_prog_cc_stdc=
ac_cv_target=x86_64-pc-linux-gnu
lt_cv_deplibs_check_method=pass_all
lt_cv_file_magic_cmd='$MAGIC_CMD'
lt_cv_file_magic_test_file=
lt_cv_ld_reload_flag=-r
lt_cv_objdir=.libs
lt_cv_path_LD=/usr/bin/ld
lt_cv_path_NM='/usr/bin/nm -B'
lt_cv_path_SED=/usr/bin/sed
lt_cv_prog_compiler_c_o=yes
lt_cv_prog_compiler_pic_works=yes
lt_cv_prog_compiler_rtti_exceptions=no
lt_cv_prog_compiler_static_works=yes
lt_cv_prog_gnu_ld=yes
lt_cv_sys_global_symbol_pipe='sed -n -e '''s/^.[ ]([ABCDGIRSTW][ABCDGIRSTW])[ ][ ]([_A-Za-z][_A-Za-z0-9])$/\1 \2 \2/p''''
lt_cv_sys_global_symbol_to_c_name_address='sed -n -e '''s/^: ([^ ]) $/ {"\1", (lt_ptr) 0},/p''' -e '''s/^[BCDEGRST] ([^ ]) ([^ ])$/ {"\2", (lt_ptr) &\2},/p''''
lt_cv_sys_global_symbol_to_cdecl='sed -n -e '''s/^. . (.)$/extern int \1;/p''''
lt_cv_sys_lib_dlsearch_path_spec='/lib /usr/lib /usr/lib/x86_64-linux-gnu/libfakeroot /usr/local/lib /usr/local/lib/x86_64-linux-gnu /lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu '
lt_cv_sys_lib_search_path_spec='/usr/lib/gcc/x86_64-linux-gnu/12 /usr/lib/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu /lib'
lt_cv_sys_max_cmd_len=1572864
lt_lt_cv_prog_compiler_c_o='"yes"'
lt_lt_cv_sys_global_symbol_pipe='"sed -n -e '''s/^.[ ]\([ABCDGIRSTW][ABCDGIRSTW]\)[ ][ ]\([_A-Za-z][_A-Za-z0-9]\)$/\1 \2 \2/p'''"'
lt_lt_cv_sys_global_symbol_to_c_name_address='"sed -n -e '''s/^: \([^ ]\) $/ {\"\1\", (lt_ptr) 0},/p''' -e '''s/^[BCDEGRST] \([^ ]\) \([^ ]\)$/ {"\2", (lt_ptr) \&\2},/p'''"'
lt_lt_cv_sys_global_symbol_to_cdecl='"sed -n -e '''s/^. .* \(.*\)$/extern int \1;/p'''"'
pdo_cv_inc_path=/usr/local/include/php/ext
php_cv_cc_rpath=yes

-----------------

Output variables.

-----------------

AR='ar'
AWK='nawk'
BUILD_CC='cc'
CC='cc'
CFLAGS='-g -O2'
CONFIGURE_COMMAND=' '''./configure''' '''--with-pdo-mysql=mysqlnd''''
CONFIGURE_OPTIONS=' '''--with-pdo-mysql=mysqlnd''''
CPP='cc -E'
CPPFLAGS=' -DHAVE_CONFIG_H'
DEFS='-DHAVE_CONFIG_H'
DSYMUTIL=''
ECHO='echo'
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP='/usr/bin/grep -E'
EXEEXT=''
GREP='/usr/bin/grep'
LDFLAGS=''
LIBOBJS=''
LIBS=''
LIBTOOL='$(SHELL) $(top_builddir)/libtool'
LN_S='ln -s'
LTLIBOBJS=''
NMEDIT=''
OBJEXT='o'
PACKAGE_BUGREPORT=''
PACKAGE_NAME=''
PACKAGE_STRING=''
PACKAGE_TARNAME=''
PACKAGE_URL=''
PACKAGE_VERSION=''
PATH_SEPARATOR=':'
PKG_CONFIG='/usr/bin/pkg-config'
PKG_CONFIG_LIBDIR=''
PKG_CONFIG_PATH=''
RANLIB='ranlib'
SED='/usr/bin/sed'
SHELL='/bin/bash'
SHLIB_DL_SUFFIX_NAME='so'
SHLIB_SUFFIX_NAME='so'
STRIP='strip'
ac_ct_CC='cc'
bindir='${exec_prefix}/bin'
build='x86_64-pc-linux-gnu'
build_alias=''
build_cpu='x86_64'
build_os='linux-gnu'
build_vendor='pc'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE}'
dvidir='${docdir}'
exec_prefix='$(prefix)'
host='x86_64-pc-linux-gnu'
host_alias='x86_64-pc-linux-gnu'
host_cpu='x86_64'
host_os='linux-gnu'
host_vendor='pc'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
mandir='${datarootdir}/man'
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='/usr/local'
program_transform_name='s,x,x,'
psdir='${docdir}'
runstatedir='${localstatedir}/run'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='${prefix}/etc'
target='x86_64-pc-linux-gnu'
target_alias=''
target_cpu='x86_64'
target_os='linux-gnu'
target_vendor='pc'

-----------

confdefs.h.

-----------

/* confdefs.h */
#define PACKAGE_NAME ""
#define PACKAGE_TARNAME ""
#define PACKAGE_VERSION ""
#define PACKAGE_STRING ""
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""
#define PHP_MYSQL_UNIX_SOCK_ADDR ""
#define PDO_USE_MYSQLND 1
#define COMPILE_DL_PDO_MYSQL 1
#define HAVE_STDIO_H 1
#define HAVE_STDLIB_H 1
#define HAVE_STRING_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_STRINGS_H 1
#define HAVE_SYS_STAT_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_UNISTD_H 1
#define STDC_HEADERS 1
#define HAVE_DLFCN_H 1

configure: exit 0

[nielsdos]

Everything looks right for your compilation.
This leaves the following question:
Are you sure you're loading the pdo_mysql library from the right location? If PHP (may be even a different version) is already installed on your system then it's possible it's trying to load the version from your distro rather than the one you built.

[hexiuzhe2015]

Installing shared extensions: /usr/local/lib/php/extensions/no-debug-zts-20240924/

root@imwox:/usr/local/lib/php/extensions/no-debug-zts-20240924# ls
mbstring.so opcache.so pcntl.so protobuf.so swoole.so
mysqlnd.so openssl.so pdo_mysql.so redis.so

PHP Warning: PHP Startup: Invalid library (maybe not a PHP library) 'pdo_mysql' in Unknown on line 0

Warning: PHP Startup: Invalid library (maybe not a PHP library) 'pdo_mysql' in Unknown on line 0
PHP 8.4.7-dev (cli) (built: May 13 2025 12:11:51) (ZTS)
Copyright (c) The PHP Group
Zend Engine v4.4.7-dev, Copyright (c) Zend Technologies

[nielsdos]

I don't quite understand why this happens.
Can you please run nm <location of pdo_mysql.so> and share the output?

[hexiuzhe2015]

nm /usr/local/lib/php/extensions/no-debug-zts-20240924/pdo_mysql.so
U add_assoc_long_ex
U add_assoc_string_ex
U add_assoc_zval_ex
U add_next_index_long
U add_next_index_string
00000000000072c0 r arginfo_class_Pdo_Mysql_getWarningCount
0000000000009ba0 d class_Pdo_Mysql_methods
000000000000a2c8 b completed.0
w __cxa_finalize@GLIBC_2.2.5
00000000000024a0 t deregister_tm_clones
U display_ini_entries
0000000000002510 t __do_global_dtors_aux
0000000000009b18 d __do_global_dtors_aux_fini_array_entry
000000000000a200 d __dso_handle
0000000000009da8 d _DYNAMIC
U _ecalloc
U _efree
U _emalloc
U _emalloc_48
U _erealloc
U _estrdup
U executor_globals_offset
000000000000668c t _fini
0000000000002550 t frame_dummy
0000000000009b10 d __frame_dummy_init_array_entry
00000000000082f4 r FRAME_END
U free@GLIBC_2.2.5
0000000000009fe8 d GLOBAL_OFFSET_TABLE
w gmon_start
0000000000007914 r __GNU_EH_FRAME_HDR
0000000000009ca0 d ini_entries
0000000000002000 t _init
U instanceof_function_slow
w _ITM_deregisterTMCloneTable
w _ITM_registerTMCloneTable
U memcpy@GLIBC_2.14
0000000000003e30 t mysql_handle_begin
0000000000003430 t mysql_handle_closer
0000000000003cc0 t mysql_handle_commit
0000000000003d20 t mysql_handle_doer
0000000000003ea0 t mysql_handle_preparer
0000000000003530 t mysql_handle_quoter
0000000000003c70 t mysql_handle_rollback
0000000000009d20 d mysql_methods
U mysqlnd_connection_connect
U mysqlnd_connection_init
U mysqlnd_get_client_info
U mysqlnd_reverse_api_register_api
0000000000009c40 d mysql_stmt_methods
U OnUpdateStringUnempty
U pdo_dbh_ce
U pdo_dbh_new
U pdo_get_bool_param
U pdo_get_long_param
000000000000a2d8 b pdo_mysql_ce
00000000000033a0 t pdo_mysql_check_liveness
00000000000025f0 t pdo_mysql_convert_zv_to_mysqlnd
0000000000002482 t pdo_mysql_convert_zv_to_mysqlnd.cold
0000000000009b20 d pdo_mysql_deps
0000000000009c00 d pdo_mysql_driver
0000000000003760 t _pdo_mysql_error
00000000000034b0 t pdo_mysql_fetch_error_func
0000000000005660 t pdo_mysql_fill_stmt_from_result
00000000000053f0 t pdo_mysql_free_result
0000000000003a00 t pdo_mysql_get_attribute
000000000000a2d0 b pdo_mysql_globals_id
0000000000004160 t pdo_mysql_handle_factory
0000000000003400 t pdo_mysql_in_transaction
0000000000003500 t pdo_mysql_last_insert_id
000000000000a220 d pdo_mysql_module_entry
00000000000033d0 t pdo_mysql_request_shutdown
0000000000009b80 d pdo_mysql_reverse_api
00000000000061e0 t pdo_mysql_scanner
0000000000005180 t pdo_mysql_set_attribute
0000000000005560 t pdo_mysql_stmt_after_execute_prepared
00000000000057d0 t pdo_mysql_stmt_col_meta
00000000000054a0 t pdo_mysql_stmt_cursor_closer
0000000000005e90 t pdo_mysql_stmt_describe
00000000000060c0 t pdo_mysql_stmt_dtor
0000000000005b80 t pdo_mysql_stmt_execute
0000000000005f80 t pdo_mysql_stmt_fetch
0000000000005380 t pdo_mysql_stmt_get_col
0000000000005720 t pdo_mysql_stmt_next_rowset
0000000000005c70 t pdo_mysql_stmt_param_hook
U pdo_parse_params
U pdo_raise_impl_error
U pdo_throw_exception
U php_check_open_basedir
U php_error_docref
U php_file_le_pstream
U php_file_le_stream
U php_info_print_table_end
U php_info_print_table_row
U php_info_print_table_start
U php_pdo_get_dbh_ce
U php_pdo_parse_data_source
U php_pdo_register_driver
U php_pdo_register_driver_specific_ce
U php_pdo_stmt_set_column_count
U php_pdo_unregister_driver
U _php_stream_copy_to_mem
U rc_dtor_func
0000000000002650 t register_class_Pdo_Mysql
00000000000024d0 t register_tm_clones
U _safe_emalloc
U std_object_handlers
U strcmp@GLIBC_2.2.5
U strcpy@GLIBC_2.2.5
U strlen@GLIBC_2.2.5
U strtol@GLIBC_2.2.5
000000000000a2c8 d TMC_END
U _tsrm_ls_cache
U __zend_calloc
U zend_declare_class_constant_long
U zend_declare_typed_class_constant
U zend_empty_string
U zend_fetch_resource2_ex
U zend_hash_index_find
U _zend_new_array_0
U zend_register_ini_entries_ex
U zend_register_internal_class_with_flags
U __zend_strdup
U zend_string_init_interned
U zend_strpprintf
U zend_throw_error
U zend_u64_to_str
U zend_unregister_ini_entries_ex
U zend_wrong_parameters_none_error
0000000000002570 t zim_Pdo_Mysql_getWarningCount
0000000000002410 t zim_Pdo_Mysql_getWarningCount.cold
0000000000002560 t zm_globals_ctor_pdo_mysql
0000000000002436 t zm_info_pdo_mysql
00000000000025c0 t zm_shutdown_pdo_mysql
0000000000003150 t zm_startup_pdo_mysql
U zval_get_long_func
U zval_ptr_dtor
U zval_try_get_string_func

[nielsdos]

You used the following configure line: ./configure --with-pdo-mysql=mysqlnd. This means that pdo_mysql will be compiled and linked statically inside the PHP executable. This means that the extension is always loaded and that it doesn't create a pdo_mysql.so file. The pdo_mysql.so file that you showed is not the one you just built.
To solve the issue, either configure pdo_mysql as shared to build a .so file; OR keep it static but remove the extension=pdo_mysql line from your php.ini.