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The C89 standard and later defines the `<string.h>` header as part of the standard headers [1] and on current systems it is always present. Code included also `<strings.h>` header as an alterinative in some files. This kind of check was relevant on some older systems where the `<strings.h>` file included definitions for the C89 compliant `<string.h>`. Today such alternative check is not required anymore. The `<strings.h>` file is part of the POSIX definition these days. Also Autoconf suggests doing this and relying on C89 or above [2] and [3]. This patch also cleans few unused `<strings.h>` inclusions in the libmbfl. [1]: https://port70.net/~nsz/c/c89/c89-draft.html#4.1.2 [2]: http://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/headers.m4 [3]: https://www.gnu.org/software/autoconf/manual/autoconf-2.69/autoconf.html
127 lines
2.7 KiB
Text
127 lines
2.7 KiB
Text
dnl Process this file with autoconf to produce a configure script.
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AC_INIT(zend.c)
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AM_INIT_AUTOMAKE(zend, 0.80A, nodefine)
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AM_CONFIG_HEADER(zend_config.h)
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AM_SANITY_CHECK
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AM_MAINTAINER_MODE
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AC_PROG_CC
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AM_PROG_CC_STDC
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ZEND_VERSION=$VERSION
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AC_ZEND_C_BIGENDIAN
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AH_TOP([
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#if defined(__GNUC__) && __GNUC__ >= 4
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# define ZEND_API __attribute__ ((visibility("default")))
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# define ZEND_DLEXPORT __attribute__ ((visibility("default")))
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#else
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# define ZEND_API
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# define ZEND_DLEXPORT
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#endif
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#define ZEND_DLIMPORT
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#undef uint
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#undef ulong
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])
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AH_BOTTOM([
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#ifndef ZEND_ACCONFIG_H_NO_C_PROTOS
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#include <stdlib.h>
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#ifdef HAVE_IEEEFP_H
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# include <ieeefp.h>
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#endif
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#include <string.h>
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#if ZEND_BROKEN_SPRINTF
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int zend_sprintf(char *buffer, const char *format, ...);
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#else
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# define zend_sprintf sprintf
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#endif
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#include <math.h>
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#ifndef zend_isnan
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#if HAVE_DECL_ISNAN && (!defined(__cplusplus) || __cplusplus < 201103L)
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#define zend_isnan(a) isnan(a)
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#elif defined(HAVE_FPCLASS)
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#define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))
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#else
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#define zend_isnan(a) ((a) != (a))
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#endif
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#endif
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#if HAVE_DECL_ISINF && (!defined(__cplusplus) || __cplusplus < 201103L)
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#define zend_isinf(a) isinf(a)
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#elif defined(INFINITY)
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/* Might not work, but is required by ISO C99 */
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#define zend_isinf(a) (((a)==INFINITY || (a)==-INFINITY)?1:0)
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#elif defined(HAVE_FPCLASS)
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#define zend_isinf(a) ((fpclass(a) == FP_PINF) || (fpclass(a) == FP_NINF))
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#else
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#define zend_isinf(a) 0
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#endif
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#if HAVE_DECL_ISFINITE && (!defined(__cplusplus) || __cplusplus < 201103L)
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#define zend_finite(a) isfinite(a)
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#elif defined(HAVE_FINITE)
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#define zend_finite(a) finite(a)
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#elif defined(fpclassify)
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#define zend_finite(a) ((fpclassify((a))!=FP_INFINITE&&fpclassify((a))!=FP_NAN)?1:0)
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#else
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#define zend_finite(a) (zend_isnan(a) ? 0 : zend_isinf(a) ? 0 : 1)
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#endif
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#endif /* ifndef ZEND_ACCONFIG_H_NO_C_PROTOS */
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])
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dnl We want this one before the checks, so the checks can modify CFLAGS.
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test -z "$CFLAGS" && auto_cflags=1
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AC_CHECK_SIZEOF(long, 8)
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AC_CHECK_SIZEOF(int, 4)
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sinclude(Zend.m4)
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LIBZEND_BASIC_CHECKS
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LIBZEND_LIBDL_CHECKS
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LIBZEND_DLSYM_CHECK
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AM_PROG_LIBTOOL
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if test "$enable_debug" != "yes"; then
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AM_SET_LIBTOOL_VARIABLE([--silent])
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fi
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dnl
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dnl Check for /usr/pkg/{lib,include} which is where NetBSD puts binary
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dnl and source packages. This should be harmless on other OSs.
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dnl
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if test -d /usr/pkg/include -a -d /usr/pkg/lib ; then
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CFLAGS="$CFLAGS -I/usr/pkg/include"
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LDFLAGS="$LDFLAGS -L/usr/pkg/lib"
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fi
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LIBZEND_ENABLE_DEBUG
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LIBZEND_OTHER_CHECKS
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ZEND_EXTRA_LIBS="$LIBS"
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LIBS=""
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AC_SUBST(ZEND_EXTRA_LIBS)
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AC_CONFIG_FILES([Makefile])
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AC_OUTPUT
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# Local Variables:
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# tab-width: 4
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# End:
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