/[pcre]/code/trunk/configure.ac
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revision 478 by ph10, Sun Jan 3 16:05:13 2010 UTC revision 654 by ph10, Tue Aug 2 11:00:40 2011 UTC
# Line 1  Line 1 
1  dnl Process this file with autoconf to produce a configure script.  dnl Process this file with autoconf to produce a configure script.
2    
3  dnl NOTE FOR MAINTAINERS: Do not use major or minor version numbers with  dnl NOTE FOR MAINTAINERS: Do not use minor version numbers 08 or 09 because
4  dnl leading zeros, because they may be treated as octal constants. The  dnl the leading zeros may cause them to be treated as invalid octal constants
5  dnl PCRE_PRERELEASE feature is for identifying release candidates. It might  dnl if a PCRE user writes code that uses PCRE_MINOR as a number. There is now
6  dnl be defined as -RC2, for example. For real releases, it should be defined  dnl a check further down that throws an error if 08 or 09 are used.
7  dnl empty.  
8    dnl The PCRE_PRERELEASE feature is for identifying release candidates. It might
9    dnl be defined as -RC2, for example. For real releases, it should be empty.
10    
11  m4_define(pcre_major, [8])  m4_define(pcre_major, [8])
12  m4_define(pcre_minor, [01])  m4_define(pcre_minor, [13])
13  m4_define(pcre_prerelease, [])  m4_define(pcre_prerelease, [-RC1])
14  m4_define(pcre_date, [2010-01-02])  m4_define(pcre_date, [2011-08-02])
15    
16  # Libtool shared library interface versions (current:revision:age)  # Libtool shared library interface versions (current:revision:age)
17  m4_define(libpcre_version, [0:1:0])  m4_define(libpcre_version, [0:1:0])
# Line 22  AC_CONFIG_SRCDIR([pcre.h.in]) Line 24  AC_CONFIG_SRCDIR([pcre.h.in])
24  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
25  AC_CONFIG_HEADERS(config.h)  AC_CONFIG_HEADERS(config.h)
26    
27    # This was added at the suggestion of libtoolize (03-Jan-10)
28    AC_CONFIG_MACRO_DIR([m4])
29    
30  # The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just  # The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just
31  # "-g" for any other compiler. There doesn't seem to be a standard way of  # "-g" for any other compiler. There doesn't seem to be a standard way of
32  # getting rid of the -g (which I don't think is needed for a production  # getting rid of the -g (which I don't think is needed for a production
# Line 63  fi Line 68  fi
68  # AC_PROG_CXX will return "g++" even if no c++ compiler is installed.  # AC_PROG_CXX will return "g++" even if no c++ compiler is installed.
69  # Check for that case, and just disable c++ code if g++ doesn't run.  # Check for that case, and just disable c++ code if g++ doesn't run.
70  AC_LANG_PUSH(C++)  AC_LANG_PUSH(C++)
71  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([],[]),, CXX=""; CXXCP=""; CXXFLAGS="")  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],, CXX=""; CXXCP=""; CXXFLAGS="")
72  AC_LANG_POP  AC_LANG_POP
73    
74  # Check for a 64-bit integer type  # Check for a 64-bit integer type
# Line 71  AC_TYPE_INT64_T Line 76  AC_TYPE_INT64_T
76    
77  AC_PROG_INSTALL  AC_PROG_INSTALL
78  AC_LIBTOOL_WIN32_DLL  AC_LIBTOOL_WIN32_DLL
79  AC_PROG_LIBTOOL  LT_INIT
80  AC_PROG_LN_S  AC_PROG_LN_S
81    
82  PCRE_MAJOR="pcre_major"  PCRE_MAJOR="pcre_major"
# Line 79  PCRE_MINOR="pcre_minor" Line 84  PCRE_MINOR="pcre_minor"
84  PCRE_PRERELEASE="pcre_prerelease"  PCRE_PRERELEASE="pcre_prerelease"
85  PCRE_DATE="pcre_date"  PCRE_DATE="pcre_date"
86    
87    if test "$PCRE_MINOR" = "08" -o "$PCRE_MINOR" = "09"
88    then
89      echo "***"
90      echo "*** Minor version number $PCRE_MINOR must not be used. ***"
91      echo "*** Use only 01 to 07 or 10 onwards, to avoid octal issues. ***"
92      echo "***"
93      exit 1
94    fi
95    
96  AC_SUBST(PCRE_MAJOR)  AC_SUBST(PCRE_MAJOR)
97  AC_SUBST(PCRE_MINOR)  AC_SUBST(PCRE_MINOR)
98  AC_SUBST(PCRE_PRERELEASE)  AC_SUBST(PCRE_PRERELEASE)
# Line 90  then Line 104  then
104    htmldir='${docdir}/html'    htmldir='${docdir}/html'
105  fi  fi
106    
107  # Handle --disable-cpp  # Handle --disable-cpp. The substitution of enable_cpp is needed for use in
108    # pcre-config.
109  AC_ARG_ENABLE(cpp,  AC_ARG_ENABLE(cpp,
110                AS_HELP_STRING([--disable-cpp],                AS_HELP_STRING([--disable-cpp],
111                               [disable C++ support]),                               [disable C++ support]),
112                , enable_cpp=yes)                , enable_cpp=yes)
113    AC_SUBST(enable_cpp)
114    
115  # Handle --enable-rebuild-chartables  # Handle --enable-rebuild-chartables
116  AC_ARG_ENABLE(rebuild-chartables,  AC_ARG_ENABLE(rebuild-chartables,
# Line 174  AC_ARG_ENABLE(pcregrep-libbz2, Line 190  AC_ARG_ENABLE(pcregrep-libbz2,
190                               [link pcregrep with libbz2 to handle .bz2 files]),                               [link pcregrep with libbz2 to handle .bz2 files]),
191                , enable_pcregrep_libbz2=no)                , enable_pcregrep_libbz2=no)
192    
193    # Handle --with-pcregrep-bufsize=N
194    AC_ARG_WITH(pcregrep-bufsize,
195                  AS_HELP_STRING([--with-pcregrep-bufsize=N],
196                                 [pcregrep buffer size (default=20480)]),
197                  , with_pcregrep_bufsize=20480)
198    
199  # Handle --enable-pcretest-libreadline  # Handle --enable-pcretest-libreadline
200  AC_ARG_ENABLE(pcretest-libreadline,  AC_ARG_ENABLE(pcretest-libreadline,
201                AS_HELP_STRING([--enable-pcretest-libreadline],                AS_HELP_STRING([--enable-pcretest-libreadline],
# Line 304  for flag in "-alias,__ZN7pcrecpp2RE6no_a Line 326  for flag in "-alias,__ZN7pcrecpp2RE6no_a
326    LDFLAGS="$OLD_LDFLAGS -Wl,$flag"    LDFLAGS="$OLD_LDFLAGS -Wl,$flag"
327    # We try to run the linker with this new ld flag.  If the link fails,    # We try to run the linker with this new ld flag.  If the link fails,
328    # we give up and remove the new flag from LDFLAGS.    # we give up and remove the new flag from LDFLAGS.
329    AC_LINK_IFELSE(AC_LANG_PROGRAM([namespace pcrecpp {    AC_LINK_IFELSE([AC_LANG_PROGRAM([namespace pcrecpp {
330                                      class RE { static int no_arg; };                                      class RE { static int no_arg; };
331                                      int RE::no_arg;                                      int RE::no_arg;
332                                    }],                                    }],
333                                   []),                                   [])],
334                   [AC_MSG_RESULT([yes]);                   [AC_MSG_RESULT([yes]);
335                    EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag";                    EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag";
336                    break;],                    break;],
# Line 326  AC_CHECK_HEADERS(bits/type_traits.h, [pc Line 348  AC_CHECK_HEADERS(bits/type_traits.h, [pc
348  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
349                                  [pcre_have_type_traits="0"])                                  [pcre_have_type_traits="0"])
350    
351    # (This isn't c++-specific, but is only used in pcrecpp.cc, so try this
352    # in a c++ context.  This matters becuase strtoimax is C99 and may not
353    # be supported by the C++ compiler.)
354    # Figure out how to create a longlong from a string: strtoll and
355    # equiv.  It's not enough to call AC_CHECK_FUNCS: hpux has a
356    # strtoll, for instance, but it only takes 2 args instead of 3!
357    # We have to call AH_TEMPLATE since AC_DEFINE_UNQUOTED below is complex.
358    AH_TEMPLATE(HAVE_STRTOQ, [Define to 1 if you have `strtoq'.])
359    AH_TEMPLATE(HAVE_STRTOLL, [Define to 1 if you have `strtoll'.])
360    AH_TEMPLATE(HAVE__STRTOI64, [Define to 1 if you have `_strtoi64'.])
361    AH_TEMPLATE(HAVE_STRTOIMAX, [Define to 1 if you have `strtoimax'.])
362    have_strto_fn=0
363    for fn in strtoq strtoll _strtoi64 strtoimax; do
364      AC_MSG_CHECKING([for $fn])
365      if test "$fn" = strtoimax; then
366        include=stdint.h
367      else
368        include=stdlib.h
369      fi
370      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <$include>],
371                                        [char* e; return $fn("100", &e, 10)])],
372                        [AC_MSG_RESULT(yes)
373                         AC_DEFINE_UNQUOTED(HAVE_`echo $fn | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`, 1,
374                                            [Define to 1 if you have `$fn'.])
375                         have_strto_fn=1
376                         break],
377                        [AC_MSG_RESULT(no)])
378    done
379    
380    if test "$have_strto_fn" = 1; then
381      AC_CHECK_TYPES([long long],
382                     [pcre_have_long_long="1"],
383                     [pcre_have_long_long="0"])
384      AC_CHECK_TYPES([unsigned long long],
385                     [pcre_have_ulong_long="1"],
386                     [pcre_have_ulong_long="0"])
387    else
388      pcre_have_long_long="0"
389      pcre_have_ulong_long="0"
390    fi
391    AC_SUBST(pcre_have_long_long)
392    AC_SUBST(pcre_have_ulong_long)
393    
394  AC_LANG_POP  AC_LANG_POP
395  fi  fi
396  # Using AC_SUBST eliminates the need to include config.h in a public .h file  # Using AC_SUBST eliminates the need to include config.h in a public .h file
# Line 341  AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, Line 406  AM_CONDITIONAL(WITH_REBUILD_CHARTABLES,
406  AC_C_CONST  AC_C_CONST
407  AC_TYPE_SIZE_T  AC_TYPE_SIZE_T
408    
 pcre_have_strotolonglong=0  
 AC_CHECK_FUNCS(strtoq strtoll _strtoi64, [pcre_have_strotolonglong="1"; break])  
 # If we can't convert a string to a long long, pretend we don't even  
 # have a long long.  
 if test $pcre_have_strotolonglong = "0"; then  
    pcre_have_long_long="0"  
    pcre_have_ulong_long="0"  
 else  
   AC_CHECK_TYPES([long long],  
                  [pcre_have_long_long="1"],  
                  [pcre_have_long_long="0"])  
   AC_CHECK_TYPES([unsigned long long],  
                  [pcre_have_ulong_long="1"],  
                  [pcre_have_ulong_long="0"])  
 fi  
 AC_SUBST(pcre_have_long_long)  
 AC_SUBST(pcre_have_ulong_long)  
   
409  # Checks for library functions.  # Checks for library functions.
410    
411  AC_CHECK_FUNCS(bcopy memmove strerror)  AC_CHECK_FUNCS(bcopy memmove strerror)
# Line 393  AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_ Line 440  AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_
440  AC_MSG_CHECKING([for libbz2])  AC_MSG_CHECKING([for libbz2])
441  OLD_LIBS="$LIBS"  OLD_LIBS="$LIBS"
442  LIBS="$LIBS -lbz2"  LIBS="$LIBS -lbz2"
443  AC_LINK_IFELSE( AC_LANG_PROGRAM([[  AC_LINK_IFELSE([AC_LANG_PROGRAM([[
444  #ifdef HAVE_BZLIB_H  #ifdef HAVE_BZLIB_H
445  #include <bzlib.h>  #include <bzlib.h>
446  #endif]],  #endif]],
447  [[return (int)BZ2_bzopen("conftest", "rb");]]),  [[return (int)BZ2_bzopen("conftest", "rb");]])],
448  [AC_MSG_RESULT([yes]);HAVE_LIBBZ2=1; break;],  [AC_MSG_RESULT([yes]);HAVE_LIBBZ2=1; break;],
449  AC_MSG_RESULT([no]))  AC_MSG_RESULT([no]))
450  LIBS="$OLD_LIBS"  LIBS="$OLD_LIBS"
# Line 459  if test "$enable_pcregrep_libbz2" = "yes Line 506  if test "$enable_pcregrep_libbz2" = "yes
506      able to handle .bz2 files.])      able to handle .bz2 files.])
507  fi  fi
508    
509    if test $with_pcregrep_bufsize -lt 8192 ; then
510      with_pcregrep_bufsize="8192"
511    fi
512    
513    AC_DEFINE_UNQUOTED([PCREGREP_BUFSIZE], [$with_pcregrep_bufsize], [
514      The value of PCREGREP_BUFSIZE determines the size of buffer used by
515      pcregrep to hold parts of the file it is searching. On systems that
516      support it, "configure" can be used to override the default, which is
517      8192. This is also the minimum value. The actual amount of memory used by
518      pcregrep is three times this number, because it allows for the buffering of
519      "before" and "after" lines.])
520    
521  if test "$enable_pcretest_libreadline" = "yes"; then  if test "$enable_pcretest_libreadline" = "yes"; then
522    AC_DEFINE([SUPPORT_LIBREADLINE], [], [    AC_DEFINE([SUPPORT_LIBREADLINE], [], [
523      Define to allow pcretest to be linked with libreadline.])      Define to allow pcretest to be linked with libreadline.])
# Line 685  $PACKAGE-$VERSION configuration summary: Line 744  $PACKAGE-$VERSION configuration summary:
744      Match limit recursion ........... : ${with_match_limit_recursion}      Match limit recursion ........... : ${with_match_limit_recursion}
745      Build shared libs ............... : ${enable_shared}      Build shared libs ............... : ${enable_shared}
746      Build static libs ............... : ${enable_static}      Build static libs ............... : ${enable_static}
747        Buffer size for pcregrep ........ : ${with_pcregrep_bufsize}
748      Link pcregrep with libz ......... : ${enable_pcregrep_libz}      Link pcregrep with libz ......... : ${enable_pcregrep_libz}
749      Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}      Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}
750      Link pcretest with libreadline .. : ${enable_pcretest_libreadline}      Link pcretest with libreadline .. : ${enable_pcretest_libreadline}

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