The current function `CHECK_HEADER_ADD_INCLUDE()` automatically defines
`HAVE_<HEADER_NAME_H>` preprocessor macros, which makes it difficult to
sync with other build systems. Specially, if some `HAVE_` macro is used
in the code and this function defines this macro but Autotools doesn't.
The new `CHECK_HEADER()` function behaves similar except it doesn't
define the `HAVE_<HEADER_NAME_H>` preprocessor macro.
This removes the following unused compile definitions:
HAVE_ARGON2_H
HAVE_AVIF_H
HAVE_BZLIB_H
HAVE_CAPSTONE_CAPSTONE_H
HAVE_CURL_EASY_H
HAVE_DB_H
HAVE_DECODE_H
HAVE_DEPOT_H
HAVE_EDITLINE_READLINE_H
HAVE_ENCHANT_H
HAVE_ENCODE_H
HAVE_FFI_H
HAVE_FIREBIRD_INTERFACE_H
HAVE_FT2BUILD_H
HAVE_GD_H
HAVE_GLIB_H
HAVE_GMP_H
HAVE_HTTPD_H
HAVE_IBASE_H
HAVE_IR_IR_H
HAVE_KECCAKHASH_H
HAVE_LBER_H
HAVE_LDAP_H
HAVE_LIBEXSLT_EXSLT_H
HAVE_LIBINTL_H
HAVE_LIBPQ_FE_H
HAVE_LIBTIDY_TIDY_H
HAVE_LIBXML_PARSER_H
HAVE_LIBXML_TREE_H
HAVE_LIBXML_XMLWRITER_H
HAVE_LIBXSLT_XSLT_H
HAVE_LMDB_H
HAVE_MBSTRING_H
HAVE_MYSQL_H
HAVE_ONIGURUMA_H
HAVE_OPENSSL_SSL_H
HAVE_PNG_H
HAVE_SNMP_H
HAVE_SODIUM_H
HAVE_SQLITE3_H
HAVE_SQLITE3EXT_H
HAVE_SYBFRONT_H
HAVE_TIDY_H
HAVE_TIDY_TIDY_H
HAVE_TIDYBUFFIO_H
HAVE_TIMELIB_CONFIG_H
HAVE_UNICODE_USPOOF_H
HAVE_UNICODE_UTF_H
HAVE_XPM_H
HAVE_ZIP_H
HAVE_ZIPCONF_H
HAVE_ZLIB_H
The following compile definitions are defined explicitly:
- HAVE_ICONV_H
- HAVE_MSCOREE_H
- HAVE_SQL_H
- HAVE_SQLEXT_H
Additionally, the `SETUP_OPENSSL()` function doesn't accept the 6th
argument anymore.
The reason why freeing was not done yet is because the pointer in these
variables may be:
- Static data set by the readline/libedit library initially, not heap
data.
- Data set by another thread. Although the libraries appear to be not
thread-safe anyway.
To solve this, introduce some TLS variables to hold a pointer for us
when we override the settings, such that we can free them and are
certain they are allocated by us.
Closes GH-20794.
The `--EXTENSIONS--` section already ensures that ext/readline is
available, so there's no need to additionally check for unconditionally
available readline functions.
Closes GH-17170.
These test cases differ only in some details, so it doesn't make much
sense to have separate test cases, given that POSIX/Windows test pairs
are not unlikely to diverge over time (as can be seen here, where the
POSIX tests are skipped for repeat runs, but the Windows tests are
not).
When functions' or class methods' availability is based on some preprocessor
condition, the generated arginfo header files wrap the declarations in the
preprocessor `#if` conditional blocks, one per declaration, even if they are in
the same conditional block based on comments in the stub file. Instead of
having multiple conditional blocks one after the other with the same condition,
combine them into a single conditional block.
This adds the missing macros help texts for easier understanding. The
AC_DEFINE can be called with only 2 arguments if there is another
definition in the code where template (see AH_TEMPLATE Autoconf macro)
is read by autoheader (the 2nd AC_DEFINE sets the template for all other
definitions with the same name).
The 'rl_pending_input' is a variable in Readline library and checking it
with PHP_CHECK_LIBRARY wouldn't find it on some systems.
Library check works on most systems but not on the mentioned AIX in the
bug as it exports variables and functions differently whereas the linker
couldn't resolve the variable as a function.
This should fix the build on systems where this caused issues, such as
AIX.
The <readline/readline.h> is not self-contained header and needs to also
have <stdio.h> included before to have FILE type available. This fixes
the issue on unpatched default readline installations, such as macOS.
Checking this variable ensures that the found library is the correct
library and also that it is of minimum version needed by current PHP
code (https://bugs.php.net/48608).
The library check:
```c
| char rl_pending_input ();
| int main (void) {
| return rl_pending_input ();
| }
```
The declaration check:
```c
| #include <stdio.h>
| #include <readline/readline.h>
| int main (void) {
| #ifndef rl_pending_input
| #ifdef __cplusplus
| (void) rl_pending_input;
| #else
| (void) rl_pending_input;
| #endif
| #endif
| ;
| return 0;
| }
```
Closes https://bugs.php.net/51558
This replaces the AC_MSG_ERROR with AC_MSG_FAILURE, where appropriate.
The AC_MSG_ERROR outputs given message and exits the configure step. The
AC_MSG_FAILURE does the same but also automatically outputs additional
message "See 'config.log' for more details." which might help directing
the user where to look further.
The AC_MSG_ERROR is used for errors where current test step isn't logged
in the config.log and wouldn't make sense, and AC_MSG_FAILURE is mostly
used in cases of library checks, compilation tests, headers checked with
AC_CHECK_HEADER* and similar tests that are also logged in the
config.log.
AC_MSG_ERROR([Sanity check failed.]) output:
```
configure: error: Sanity check failed.
```
AC_MSG_FAILURE([Sanity check failed.]) output:
```
configure: error: in '/path/to/php-src':
configure: error: Sanity check failed.
See 'config.log' for more details
```
When building with readline/libedit installed at non-standard or
non-system paths the check flags also need to be adjusted a bit to be
able to check for the declared variable.
HAVE_ERASE_EMPTY_LINE always gets the last AC_DEFINE help text, so it is
simpler to have the same help message for both definitions (readline and
editline). First text never got into header via autoheader anyway.
This wasn't activated due to inconsistent availability over the
editline/readline versions and variants. This now checks whether the
rl_erase_empty_line variable is available in library headers and enables
it based on that. On Windows this is for now still disabled due to
wineditline library, which doesn't have this yet.
Documentation already mentions the erase_empty_line setting:
https://www.php.net/manual/en/function.readline-info.php
* Include from build dir first
This fixes out of tree builds by ensuring that configure artifacts are included
from the build dir.
Before, out of tree builds would preferably include files from the src dir, as
the include path was defined as follows (ignoring includes from ext/ and sapi/) :
-I$(top_builddir)/main
-I$(top_srcdir)
-I$(top_builddir)/TSRM
-I$(top_builddir)/Zend
-I$(top_srcdir)/main
-I$(top_srcdir)/Zend
-I$(top_srcdir)/TSRM
-I$(top_builddir)/
As a result, an out of tree build would include configure artifacts such as
`main/php_config.h` from the src dir.
After this change, the include path is defined as follows:
-I$(top_builddir)/main
-I$(top_builddir)
-I$(top_srcdir)/main
-I$(top_srcdir)
-I$(top_builddir)/TSRM
-I$(top_builddir)/Zend
-I$(top_srcdir)/Zend
-I$(top_srcdir)/TSRM
* Fix extension include path for out of tree builds
* Include config.h with the brackets form
`#include "config.h"` searches in the directory containing the including-file
before any other include path. This can include the wrong config.h when building
out of tree and a config.h exists in the source tree.
Using `#include <config.h>` uses exclusively the include path, and gives
priority to the build dir.
These are either undefined or defined (to value 1):
- __DragonFly__
- __FreeBSD__
- HAS_MCAST_EXT
- HAVE_GETCWD
- HAVE_GETWD
- HAVE_GLIBC_ICONV
- HAVE_JIT
- HAVE_LCHOWN
- HAVE_NL_LANGINFO
- HAVE_RL_CALLBACK_READ_CHAR
- HAVE_RL_ON_NEW_LINE
- HAVE_SQL_EXTENDED_FETCH
- HAVE_UTIME
Follow up of GH-5526 (-Wundef)
