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[WIP] Add PHP pkgconf .pc metadata file(s)
Since PHP *nix Autotools build system already extensively relies on pkgconf (pkg-config) command-line tool to find dependencies it should also provide its own .pc file(s). This adds an initial php.pc.in and php-embed.pc.in template files that are created during the configuration and build phase. They are installed in the provided system pkgconfig directory. For example: /usr/lib/pkgconfig/php.pc /usr/lib/pkgconfig/php-embed.pc /usr/lib/x86_64-linux-gnu/pkgconfig/php.pc Pkgconf [1] is a more actively maintained continuation of the initial Freedesktop's pkg-config project [2]. Extensions and applications embedding the PHP Embed SAPI can then optionally use also the pkgconf command-line tool to get the required PHP CFLAGS and/or LIBS. pkgconf --libs php-embed pkgconf --modversion php-embed pkgconf --cflags php-embed pkgconf --cflags php [1]: https://github.com/pkgconf/pkgconf [2]: https://gitlab.freedesktop.org/pkg-config/pkg-config
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‎.gitignore

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@@ -112,6 +112,7 @@ config.h.in
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# SAPIs specific ignores
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# ------------------------------------------------------------------------------
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/sapi/apache2handler/libphp.module
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/sapi/embed/php-embed.pc
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/sapi/fpm/fpm/php-cgi
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/sapi/fpm/init.d.php-fpm
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/sapi/fpm/php-fpm.conf
@@ -122,6 +123,7 @@ config.h.in
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# ------------------------------------------------------------------------------
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# Executable binaries and scripts generated during the build process
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# ------------------------------------------------------------------------------
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/build/php.pc
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/ext/phar/phar.phar
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/ext/phar/phar.php
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/pear/install-pear-nozlib.phar

‎build/php.pc.in

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prefix=@prefix@
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exec_prefix=@exec_prefix@
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includedir=@prefix@/include
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libdir=@exec_prefix@/lib
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Name: php
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Description: A general-purpose scripting language
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URL: https://www.php.net
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License: PHP
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Version: @PHP_VERSION@
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CFlags: -I${includedir} -I${includedir}/main -I${includedir}/TSRM -I${includedir}/Zend -I${includedir}/ext -I${includedir}/ext/date/lib
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Libs: -L${libdir} -lphp

‎configure.ac

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@@ -1666,7 +1666,7 @@ else
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fi;
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all_targets="\$(OVERALL_TARGET) \$(PHP_MODULES) \$(PHP_ZEND_EX) \$(PHP_BINARIES) $pharcmd"
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install_targets="$install_sapi $install_modules $install_binaries install-build install-headers install-programs $install_pear $pharcmd_install"
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install_targets="$install_sapi $install_modules $install_binaries install-build install-headers install-programs $install_pear $pharcmd_install $embed_install"
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PHP_SUBST(all_targets)
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PHP_SUBST(install_targets)
@@ -1760,7 +1760,7 @@ $php_shtool mkdir -p pear
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$php_shtool mkdir -p scripts
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$php_shtool mkdir -p scripts/man1
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ALL_OUTPUT_FILES="main/build-defs.h \
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ALL_OUTPUT_FILES="build/php.pc main/build-defs.h \
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scripts/phpize scripts/man1/phpize.1 \
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scripts/php-config scripts/man1/php-config.1 \
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$PHP_OUTPUT_FILES"

‎sapi/embed/Makefile.frag

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install-embed:
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@echo "Installing PHP Embed SAPI: $(INSTALL_ROOT)$(libdir)"
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@$(mkinstalldirs) $(INSTALL_ROOT)$(libdir)/pkgconfig
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@$(INSTALL_DATA) sapi/embed/php-embed.pc $(INSTALL_ROOT)$(libdir)/pkgconfig/$(program_prefix)php-embed$(program_suffix).pc

‎sapi/embed/config.m4

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@@ -29,6 +29,11 @@ if test "$PHP_EMBED" != "no"; then
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PHP_INSTALL_HEADERS([sapi/embed], [php_embed.h])
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fi
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AC_MSG_RESULT([$PHP_EMBED_TYPE])
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PHP_ADD_MAKEFILE_FRAGMENT([$abs_srcdir/sapi/embed/Makefile.frag], [$abs_srcdir/sapi/embed], [$abs_builddir/sapi/embed])
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PHP_OUTPUT([sapi/embed/php-embed.pc])
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embed_install=install-embed
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else
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AC_MSG_RESULT(no)
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fi

‎sapi/embed/php-embed.pc.in

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prefix=@prefix@
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exec_prefix=@exec_prefix@
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includedir=@prefix@/include
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libdir=@exec_prefix@/lib
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Name: php-embed
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Description: Embed PHP into application with C bindings using a lightweight SAPI
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URL: https://www.php.net
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License: PHP
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Version: @PHP_VERSION@
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CFlags: -I${includedir} -I${includedir}/main -I${includedir}/TSRM -I${includedir}/Zend -I${includedir}/ext -I${includedir}/ext/date/lib
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Libs: -L@libdir@ -lphp

‎scripts/Makefile.frag

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@@ -32,6 +32,9 @@ install-build:
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(cd $(top_srcdir) && \
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$(INSTALL) $(BUILD_FILES_EXEC) $(INSTALL_ROOT)$(phpbuilddir) && \
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$(INSTALL_DATA) $(BUILD_FILES) $(INSTALL_ROOT)$(phpbuilddir))
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@echo "Installing pkgconf PC file: $(INSTALL_ROOT)$(libdir)/pkgconfig/php.pc"
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@$(mkinstalldirs) $(INSTALL_ROOT)$(libdir)/pkgconfig
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@$(INSTALL_DATA) $(top_builddir)/build/php.pc $(INSTALL_ROOT)$(libdir)/pkgconfig/$(program_prefix)php$(program_suffix).pc
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install-programs: $(builddir)/phpize $(builddir)/php-config
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@echo "Installing helper programs: $(INSTALL_ROOT)$(bindir)/"

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