We work around a strlen() optimization bug in GCC 8[1] by checking whether the used GCC exhibits the broken behavior, and if so by disabling `optimize-strlen`. [1] <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86914>
This removes two old Autoconf macro definitions since they are not used anymore.
AC_RUN_IFELSE program can't be run when cross-compiling. This fix removes warnings given by autotools scripts.
Autoconf 2.50 released in 2001 made several macros obsolete including the AC_TRY_RUN, AC_TRY_COMPILE and AC_TRY_LINK: http://git.savannah.gnu.org/cgit/autoconf.git/tree/ChangeLog.2 These macros should be replaced with the current AC_FOO_IFELSE instead: - AC_TRY_RUN with AC_RUN_IFELSE and AC_LANG_SOURCE - AC_TRY_LINK with AC_LINK_IFELSE and AC_LANG_PROGRAM - AC_TRY_COMPILE with AC_COMPILE_IFELSE and AC_LANG_PROGRAM PHP 5.4 to 7.1 require Autoconf 2.59+ version, PHP 7.2 and above require 2.64+ version, and the PHP 7.2 phpize script requires 2.59+ version which are all greater than above mentioned 2.50 version therefore systems should be well supported by now. This patch was created with the help of autoupdate script: autoupdate <file> Reference docs: - https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html - https://www.gnu.org/software/autoconf/manual/autoconf-2.59/autoconf.pdf
Autoconf 2.50 made several changes to macro calls. These include also arguments passed to AC_OUTPUT macro. The upgrading chapter in Autoconf documentation include an example of using AC_OUTPUT with AC_CONFIG_FILES and AC_CONFIG_COMMANDS: - https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html PHP 5.4 to 7.1 require Autoconf 2.59+, PHP 7.2+ require Autoconf 2.64+, and PHP 7.2 phpize script requires Autoconf 2.59+ which are all greater than above mentioned 2.50 version. Systems out there should well support this by now. This patch was created with the help of autoupdate script: autoupdate <file> More info on where exactly this got deprecated: - ftp://ftp.gnu.org/old-gnu/Manuals/autoconf-2.13/html_mono/autoconf.html - ftp://ftp.auckland.ac.nz/pub/gnu/Manuals/autoconf-2.52/html_chapter/autoconf_15.html - http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS
Since PHP 5.3 flex lexer has been replaced with re2c. Commit 0f9e2b1753661afe1c0dee6982e161fcf00d349f made PHP_PROG_LEX macro still available for BC. In commit df6bd506d492292ef4353b0f8da0c34eeb076be5 it was updated. Since this macro is entirely not used in PHP source code anymore from PHP 5.3 and up, this patch removes it together with some old traces of warnings suppression and comments.
Some editors utilizing .editorconfig automatically trim whitespaces. For convenience this patch removes whitespaces in certain build files: - ext/*/config*.m4 - configure.ac - acinclude.m4
The AC_TRY_CPP macro is obsolete since Autoconf 2.50 in 2001: - http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS - https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html
The macro AC_DECL_YYTEXT has been obsolete since Autoconf 2.50 released in 2001. Now it is included in the AC_PROG_LEX macro. Autoconf news info about obsoletion: - http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS Docs: https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html PHP 5.4 to 7.1 require Autoconf 2.59+ version, PHP 7.2 and above require 2.64+ version, and the PHP 7.2 phpize script requires 2.59+ version which are all greater than above mentioned 2.50 version. Systems out there should well support this by now.
The $Id$ keywords were used in Subversion where they can be substituted with filename, last revision number change, last changed date, and last user who changed it. In Git this functionality is different and can be done with Git attribute ident. These need to be defined manually for each file in the .gitattributes file and are afterwards replaced with 40-character hexadecimal blob object name which is based only on the particular file contents. This patch simplifies handling of $Id$ keywords by removing them since they are not used anymore.