pickle.phar installation of memcached doesn't work anymore as of PHP 8.1.20 and PHP 8.2.7

[proligde]

How to reproduce

• Build your own docker, based on the official php-fpm container image
• add prerequisite packages like apt-get install libmemcached-dev
• install phar
• install memcached like so: pickle.phar install memcached (which currently is memcached-3.2.0)

Expected result (works perfectly fine with PHP 8.1.19 and PHP 8.2.6)
The package gets installed successfully

Actual result
I get the error: #13 2.516 2: checking for libmemcached location... configure: error: memcached support requires libmemcached. Use --with-libmemcached-dir=<DIR> to specify the prefix where libmemcached headers and library are located

I assume this message points into a wrong direction, though. Even if I specify the location (which has never been necessary), using an options-file, the installation process fails, stating there's no libmemcached.h headerfile in the defined directory, but it actually is.

I checked the changelog of PHP 8.1.20 and found an info "Phar: Fixed bug GH-11099 (Generating phar.php during cross-compile can't be done)." that looked like it might be related, but that's where my knowledge ends :-).

Any help or workaround suggestion is greatly appreciated – Thanks in advance!

[mlocati]

I also have this issue, but I think it's not related to changes in PHP.

I tested this basic script:

apt update -q
apt install -qy libmemcached-dev zlib1g-dev
echo '' | pecl install memcached
docker-php-ext-enable memcached

In both php:8.2.7-cli-bullseye and php:8.2.7-cli-bookworm docker images.

With bullseye (Debian 11) the memcached PHP extension can be build,. with bookworm (Debian 12) I have the error reported above ("memcached support requires libmemcached").

I think that probably the cause of the issue is an upgrade of the libmemcached system library (in bullseye we have v1.0.18-4.2, in bookworm we have v1.1.4-1), and the build system can't detect it.

[AKorezin]

It seems that there's a hidden private dependency for pkgconf.

php-memcached/config.m4

Lines 245 to 247 in 7fefcb7

	if ! $PKG_CONFIG --exists libmemcached; then
	AC_MSG_ERROR([memcached support requires libmemcached. Use --with-libmemcached-dir=<DIR> to specify the prefix where libmemcached headers and library are located])
	else

--- a/usr/lib/x86_64-linux-gnu/pkgconfig/libmemcached.pc
+++ b/usr/lib/x86_64-linux-gnu/pkgconfig/libmemcached.pc
@@ -1,11 +1,13 @@
 prefix=/usr
-exec_prefix=${prefix}
-libdir=${prefix}/lib/x86_64-linux-gnu
-includedir=${prefix}/include
+exec_prefix=/usr/bin
+libdir=/usr/lib/x86_64-linux-gnu
+includedir=/usr/include
 
 Name: libmemcached
-URL: http://libmemcachd.org/
-Description: libmemcached C/C++ library.
-Version: 1.0.18
-Libs: -L${libdir} -lmemcached -lmemcachedutil
-Cflags: -I${includedir}
+URL: https://awesomized.github.io/libmemcached/
+Description: libmemcached C/C++ library
+Version: 1.1.4
+Libs: -L/usr/lib/x86_64-linux-gnu -lmemcached -lmemcachedutil
+Cflags: -I/usr/include
+Requires:  libsasl2
+Requires.private:  libcrypto

1. bullseye

   #apt-get install -y libmemcached-dev zlib1g-dev
   #pkgconf --exists libmemcached; echo $?
   0
   

2. bookworm

   #apt-get install -y libmemcached-dev zlib1g-dev
   #pkgconf --exists --print-errors libmemcached; echo $?
   Package libcrypto was not found in the pkg-config search path.
   Perhaps you should add the directory containing `libcrypto.pc'
   to the PKG_CONFIG_PATH environment variable
   Package 'libcrypto', required by 'libmemcached', not found
   1
   

   #apt-get install -y libmemcached-dev zlib1g-dev libssl-dev
   #pkgconf --exists libmemcached; echo $?
   0
   

libssl-dev should be somewhere here
https://salsa.debian.org/debian/libmemcached/-/blob/6e31130745a6be9325dbc6ab3f0697d20ee7ca16/debian/control#L49-54

Refs:

• Memcached installation error in php:8.1-apache docker-library/php#1418
• https://bugs.debian.org/1038149

[proligde]

thank y'all! Works as intended after installing libssl-dev as suggested. Closing issue