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revision 127 by ph10, Mon Mar 19 11:44:45 2007 UTC revision 1230 by ph10, Fri Dec 7 10:22:16 2012 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  m4_define(pcre_major, [7])  dnl be defined as -RC2, for example. For real releases, it should be empty.
10  m4_define(pcre_minor, [1])  
11  m4_define(pcre_prerelease, [-RC2])  m4_define(pcre_major, [8])
12  m4_define(pcre_date, [2007-03-19])  m4_define(pcre_minor, [33])
13    m4_define(pcre_prerelease, [-RC1])
14    m4_define(pcre_date, [2012-12-07])
15    
16    # NOTE: The CMakeLists.txt file searches for the above variables in the first
17    # 50 lines of this file. Please update that if the variables above are moved.
18    
19  # Libtool shared library interface versions (current:revision:age)  # Libtool shared library interface versions (current:revision:age)
20  m4_define(libpcre_version, [0:1:0])  m4_define(libpcre_version, [3:0:2])
21  m4_define(libpcreposix_version, [0:0:0])  m4_define(libpcre16_version, [2:0:2])
22    m4_define(libpcre32_version, [0:0:0])
23    m4_define(libpcreposix_version, [0:1:0])
24  m4_define(libpcrecpp_version, [0:0:0])  m4_define(libpcrecpp_version, [0:0:0])
25    
26  AC_PREREQ(2.57)  AC_PREREQ(2.57)
27  AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre)  AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre)
28  AC_CONFIG_SRCDIR([pcre.h.in])  AC_CONFIG_SRCDIR([pcre.h.in])
29  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
30    m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
31  AC_CONFIG_HEADERS(config.h)  AC_CONFIG_HEADERS(config.h)
32    
33    # This was added at the suggestion of libtoolize (03-Jan-10)
34    AC_CONFIG_MACRO_DIR([m4])
35    
36    # The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just
37    # "-g" for any other compiler. There doesn't seem to be a standard way of
38    # getting rid of the -g (which I don't think is needed for a production
39    # library). This fudge seems to achieve the necessary. First, we remember the
40    # externally set values of CFLAGS and CXXFLAGS. Then call the AC_PROG_CC and
41    # AC_PROG_CXX macros to find the compilers - if CFLAGS and CXXFLAGS are not
42    # set, they will be set to Autoconf's defaults. Afterwards, if the original
43    # values were not set, remove the -g from the Autoconf defaults.
44    # (PH 02-May-07)
45    
46    remember_set_CFLAGS="$CFLAGS"
47    remember_set_CXXFLAGS="$CXXFLAGS"
48    
49  AC_PROG_CC  AC_PROG_CC
50  AC_PROG_CXX  AC_PROG_CXX
51    AM_PROG_CC_C_O
52    
53    if test "x$remember_set_CFLAGS" = "x"
54    then
55      if test "$CFLAGS" = "-g -O2"
56      then
57        CFLAGS="-O2"
58      elif test "$CFLAGS" = "-g"
59      then
60        CFLAGS=""
61      fi
62    fi
63    
64    if test "x$remember_set_CXXFLAGS" = "x"
65    then
66      if test "$CXXFLAGS" = "-g -O2"
67      then
68        CXXFLAGS="-O2"
69      elif test "$CXXFLAGS" = "-g"
70      then
71        CXXFLAGS=""
72      fi
73    fi
74    
75    # AC_PROG_CXX will return "g++" even if no c++ compiler is installed.
76    # Check for that case, and just disable c++ code if g++ doesn't run.
77    AC_LANG_PUSH(C++)
78    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],, CXX=""; CXXCP=""; CXXFLAGS="")
79    AC_LANG_POP
80    
81    # Check for a 64-bit integer type
82    AC_TYPE_INT64_T
83    
84  AC_PROG_INSTALL  AC_PROG_INSTALL
85  AC_LIBTOOL_WIN32_DLL  AC_LIBTOOL_WIN32_DLL
86  AC_PROG_LIBTOOL  LT_INIT
87    AC_PROG_LN_S
88    
89    # Check for GCC visibility feature
90    
91    PCRE_VISIBILITY
92    
93    # Versioning
94    
95  PCRE_MAJOR="pcre_major"  PCRE_MAJOR="pcre_major"
96  PCRE_MINOR="pcre_minor"  PCRE_MINOR="pcre_minor"
97  PCRE_PRERELEASE="pcre_prerelease"  PCRE_PRERELEASE="pcre_prerelease"
98  PCRE_DATE="pcre_date"  PCRE_DATE="pcre_date"
99    
100    if test "$PCRE_MINOR" = "08" -o "$PCRE_MINOR" = "09"
101    then
102      echo "***"
103      echo "*** Minor version number $PCRE_MINOR must not be used. ***"
104      echo "*** Use only 01 to 07 or 10 onwards, to avoid octal issues. ***"
105      echo "***"
106      exit 1
107    fi
108    
109  AC_SUBST(PCRE_MAJOR)  AC_SUBST(PCRE_MAJOR)
110  AC_SUBST(PCRE_MINOR)  AC_SUBST(PCRE_MINOR)
111  AC_SUBST(PCRE_PRERELEASE)  AC_SUBST(PCRE_PRERELEASE)
# Line 43  then Line 117  then
117    htmldir='${docdir}/html'    htmldir='${docdir}/html'
118  fi  fi
119    
120  # Handle --disable-cpp  # Handle --disable-pcre8 (enabled by default)
121    AC_ARG_ENABLE(pcre8,
122                  AS_HELP_STRING([--disable-pcre8],
123                                 [disable 8 bit character support]),
124                  , enable_pcre8=unset)
125    AC_SUBST(enable_pcre8)
126    
127    # Handle --enable-pcre16 (disabled by default)
128    AC_ARG_ENABLE(pcre16,
129                  AS_HELP_STRING([--enable-pcre16],
130                                 [enable 16 bit character support]),
131                  , enable_pcre16=unset)
132    AC_SUBST(enable_pcre16)
133    
134    # Handle --enable-pcre32 (disabled by default)
135    AC_ARG_ENABLE(pcre32,
136                  AS_HELP_STRING([--enable-pcre32],
137                                 [enable 32 bit character support]),
138                  , enable_pcre32=unset)
139    AC_SUBST(enable_pcre32)
140    
141    # Handle --disable-cpp. The substitution of enable_cpp is needed for use in
142    # pcre-config.
143  AC_ARG_ENABLE(cpp,  AC_ARG_ENABLE(cpp,
144                AS_HELP_STRING([--disable-cpp],                AS_HELP_STRING([--disable-cpp],
145                               [disable C++ support]),                               [disable C++ support]),
146                , enable_cpp=yes)                , enable_cpp=unset)
147    AC_SUBST(enable_cpp)
148    
149    # Handle --enable-jit (disabled by default)
150    AC_ARG_ENABLE(jit,
151                  AS_HELP_STRING([--enable-jit],
152                                 [enable Just-In-Time compiling support]),
153                  , enable_jit=no)
154    
155    # Handle --disable-pcregrep-jit (enabled by default)
156    AC_ARG_ENABLE(pcregrep-jit,
157                  AS_HELP_STRING([--disable-pcregrep-jit],
158                                 [disable JIT support in pcregrep]),
159                  , enable_pcregrep_jit=yes)
160    
161    # Handle --enable-rebuild-chartables
162    AC_ARG_ENABLE(rebuild-chartables,
163                  AS_HELP_STRING([--enable-rebuild-chartables],
164                                 [rebuild character tables in current locale]),
165                  , enable_rebuild_chartables=no)
166    
167  # Handle --enable-utf8 (disabled by default)  # Handle --enable-utf8 (disabled by default)
168  AC_ARG_ENABLE(utf8,  AC_ARG_ENABLE(utf8,
169                AS_HELP_STRING([--enable-utf8],                AS_HELP_STRING([--enable-utf8],
170                               [enable UTF-8 support]),                               [another name for --enable-utf. Kept only for compatibility reasons]),
171                , enable_utf8=unset)                , enable_utf8=unset)
172    
173    # Handle --enable-utf (disabled by default)
174    AC_ARG_ENABLE(utf,
175                  AS_HELP_STRING([--enable-utf],
176                                 [enable UTF-8/16/32 support (incompatible with --enable-ebcdic)]),
177                  , enable_utf=unset)
178    
179  # Handle --enable-unicode-properties  # Handle --enable-unicode-properties
180  AC_ARG_ENABLE(unicode-properties,  AC_ARG_ENABLE(unicode-properties,
181                AS_HELP_STRING([--enable-unicode-properties],                AS_HELP_STRING([--enable-unicode-properties],
182                               [enable Unicode properties support (implies --enable-utf8)]),                               [enable Unicode properties support (implies --enable-utf)]),
183                , enable_unicode_properties=no)                , enable_unicode_properties=no)
184    
185  # Handle --enable-newline=NL  # Handle newline options
 dnl AC_ARG_ENABLE(newline,  
 dnl               AS_HELP_STRING([--enable-newline=NL],  
 dnl                              [use NL as newline (lf, cr, crlf, any; default=lf)]),  
 dnl               , enable_newline=lf)  
   
 # Separate newline options  
186  ac_pcre_newline=lf  ac_pcre_newline=lf
187  AC_ARG_ENABLE(newline-is-cr,  AC_ARG_ENABLE(newline-is-cr,
188                AS_HELP_STRING([--enable-newline-is-cr],                AS_HELP_STRING([--enable-newline-is-cr],
# Line 81  AC_ARG_ENABLE(newline-is-crlf, Line 196  AC_ARG_ENABLE(newline-is-crlf,
196                AS_HELP_STRING([--enable-newline-is-crlf],                AS_HELP_STRING([--enable-newline-is-crlf],
197                               [use CRLF as newline sequence]),                               [use CRLF as newline sequence]),
198                ac_pcre_newline=crlf)                ac_pcre_newline=crlf)
199    AC_ARG_ENABLE(newline-is-anycrlf,
200                  AS_HELP_STRING([--enable-newline-is-anycrlf],
201                                 [use CR, LF, or CRLF as newline sequence]),
202                  ac_pcre_newline=anycrlf)
203  AC_ARG_ENABLE(newline-is-any,  AC_ARG_ENABLE(newline-is-any,
204                AS_HELP_STRING([--enable-newline-is-any],                AS_HELP_STRING([--enable-newline-is-any],
205                               [use any valid Unicode newline sequence]),                               [use any valid Unicode newline sequence]),
206                ac_pcre_newline=any)                ac_pcre_newline=any)
207  enable_newline="$ac_pcre_newline"  enable_newline="$ac_pcre_newline"
208    
209    # Handle --enable-bsr-anycrlf
210    AC_ARG_ENABLE(bsr-anycrlf,
211                  AS_HELP_STRING([--enable-bsr-anycrlf],
212                                 [\R matches only CR, LF, CRLF by default]),
213                  , enable_bsr_anycrlf=no)
214    
215  # Handle --enable-ebcdic  # Handle --enable-ebcdic
216  AC_ARG_ENABLE(ebcdic,  AC_ARG_ENABLE(ebcdic,
217                AS_HELP_STRING([--enable-ebcdic],                AS_HELP_STRING([--enable-ebcdic],
218                               [assume EBCDIC coding rather than ASCII]),                               [assume EBCDIC coding rather than ASCII; incompatible with --enable-utf; use only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]),
219                , enable_ebcdic=no)                , enable_ebcdic=no)
220    
221    # Handle --enable-ebcdic-nl25
222    AC_ARG_ENABLE(ebcdic-nl25,
223                  AS_HELP_STRING([--enable-ebcdic-nl25],
224                                 [set EBCDIC code for NL to 0x25 instead of 0x15; it implies --enable-ebcdic]),
225                  , enable_ebcdic_nl25=no)
226    
227  # Handle --disable-stack-for-recursion  # Handle --disable-stack-for-recursion
228  AC_ARG_ENABLE(stack-for-recursion,  AC_ARG_ENABLE(stack-for-recursion,
229                AS_HELP_STRING([--disable-stack-for-recursion],                AS_HELP_STRING([--disable-stack-for-recursion],
230                               [don't use stack recursion when matching]),                               [don't use stack recursion when matching]),
231                , enable_stack_for_recursion=yes)                , enable_stack_for_recursion=yes)
232    
233    # Handle --enable-pcregrep-libz
234    AC_ARG_ENABLE(pcregrep-libz,
235                  AS_HELP_STRING([--enable-pcregrep-libz],
236                                 [link pcregrep with libz to handle .gz files]),
237                  , enable_pcregrep_libz=no)
238    
239    # Handle --enable-pcregrep-libbz2
240    AC_ARG_ENABLE(pcregrep-libbz2,
241                  AS_HELP_STRING([--enable-pcregrep-libbz2],
242                                 [link pcregrep with libbz2 to handle .bz2 files]),
243                  , enable_pcregrep_libbz2=no)
244    
245    # Handle --with-pcregrep-bufsize=N
246    AC_ARG_WITH(pcregrep-bufsize,
247                  AS_HELP_STRING([--with-pcregrep-bufsize=N],
248                                 [pcregrep buffer size (default=20480)]),
249                  , with_pcregrep_bufsize=20480)
250    
251    # Handle --enable-pcretest-libedit
252    AC_ARG_ENABLE(pcretest-libedit,
253                  AS_HELP_STRING([--enable-pcretest-libedit],
254                                 [link pcretest with libedit]),
255                  , enable_pcretest_libedit=no)
256    
257    # Handle --enable-pcretest-libreadline
258    AC_ARG_ENABLE(pcretest-libreadline,
259                  AS_HELP_STRING([--enable-pcretest-libreadline],
260                                 [link pcretest with libreadline]),
261                  , enable_pcretest_libreadline=no)
262    
263  # Handle --with-posix-malloc-threshold=NBYTES  # Handle --with-posix-malloc-threshold=NBYTES
264  AC_ARG_WITH(posix-malloc-threshold,  AC_ARG_WITH(posix-malloc-threshold,
265              AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],              AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],
# Line 130  AC_ARG_WITH(match-limit-recursion, Line 291  AC_ARG_WITH(match-limit-recursion,
291                             [default limit on internal recursion (default=MATCH_LIMIT)]),                             [default limit on internal recursion (default=MATCH_LIMIT)]),
292              , with_match_limit_recursion=MATCH_LIMIT)              , with_match_limit_recursion=MATCH_LIMIT)
293    
294  # Make sure that if enable_unicode_properties was set, that UTF-8 support  # Handle --enable-valgrind
295  # is enabled.  AC_ARG_ENABLE(valgrind,
296  #                AS_HELP_STRING([--enable-valgrind],
297                                 [valgrind support]),
298                  , enable_valgrind=no)
299    
300    # Enable code coverage reports using gcov
301    AC_ARG_ENABLE(coverage,
302                  AS_HELP_STRING([--enable-coverage],
303                                 [enable code coverage reports using gcov]),
304                  , enable_coverage=no)
305    
306    # Copy enable_utf8 value to enable_utf for compatibility reasons
307    if test "x$enable_utf8" != "xunset"
308    then
309      if test "x$enable_utf" != "xunset"
310      then
311        AC_MSG_ERROR([--enable/disable-utf8 is kept only for compatibility reasons and its value is copied to --enable/disable-utf. Newer code must use --enable/disable-utf alone.])
312      fi
313      enable_utf=$enable_utf8
314    fi
315    
316    # Set the default value for pcre8
317    if test "x$enable_pcre8" = "xunset"
318    then
319      enable_pcre8=yes
320    fi
321    
322    # Set the default value for pcre16
323    if test "x$enable_pcre16" = "xunset"
324    then
325      enable_pcre16=no
326    fi
327    
328    # Set the default value for pcre32
329    if test "x$enable_pcre32" = "xunset"
330    then
331      enable_pcre32=no
332    fi
333    
334    # Make sure enable_pcre8 or enable_pcre16 was set
335    if test "x$enable_pcre8$enable_pcre16$enable_pcre32" = "xnonono"
336    then
337      AC_MSG_ERROR([At least one of 8, 16 or 32 bit pcre library must be enabled])
338    fi
339    
340    # Make sure that if enable_unicode_properties was set, that UTF support is enabled.
341  if test "x$enable_unicode_properties" = "xyes"  if test "x$enable_unicode_properties" = "xyes"
342  then  then
343    if test "x$enable_utf8" = "xno"    if test "x$enable_utf" = "xno"
344    then    then
345      AC_MSG_ERROR([support for Unicode properties requires UTF-8 support])      AC_MSG_ERROR([support for Unicode properties requires UTF-8/16/32 support])
346    fi    fi
347    enable_utf8=yes    enable_utf=yes
348    fi
349    
350    # enable_utf is disabled by default.
351    if test "x$enable_utf" = "xunset"
352    then
353      enable_utf=no
354    fi
355    
356    # enable_cpp copies the value of enable_pcre8 by default
357    if test "x$enable_cpp" = "xunset"
358    then
359      enable_cpp=$enable_pcre8
360  fi  fi
361    
362  if test "x$enable_utf8" = "xunset"  # Make sure that if enable_cpp was set, that enable_pcre8 support is enabled
363    if test "x$enable_cpp" = "xyes"
364  then  then
365    enable_utf8=no    if test "x$enable_pcre8" = "xno"
366      then
367        AC_MSG_ERROR([C++ library requires pcre library with 8 bit characters])
368      fi
369  fi  fi
370    
371  # Convert the newline identifier into the appropriate integer value.  # Convert the newline identifier into the appropriate integer value. The first
372    # three are ASCII values 0x0a, 0x0d, and 0x0d0a, but if EBCDIC is enabled, they
373    # are changed below.
374    
375  case "$enable_newline" in  case "$enable_newline" in
376    lf)   ac_pcre_newline_value=10   ;;    lf)      ac_pcre_newline_value=10   ;;
377    cr)   ac_pcre_newline_value=13   ;;    cr)      ac_pcre_newline_value=13   ;;
378    crlf) ac_pcre_newline_value=3338 ;;    crlf)    ac_pcre_newline_value=3338 ;;
379    any)  ac_pcre_newline_value=-1   ;;    anycrlf) ac_pcre_newline_value=-2   ;;
380      any)     ac_pcre_newline_value=-1   ;;
381    *)    *)
382    AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])    AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
383    ;;    ;;
384  esac  esac
385    
386    # --enable-ebcdic-nl25 implies --enable-ebcdic
387    if test "x$enable_ebcdic_nl25" = "xyes"; then
388      enable_ebcdic=yes
389    fi
390    
391    # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled,
392    # and the newline value is adjusted appropriately (CR is still 13, but LF is
393    # 21 or 37). Also check that UTF support is not requested, because PCRE cannot
394    # handle EBCDIC and UTF in the same build. To do so it would need to use
395    # different character constants depending on the mode.
396    #
397    if test "x$enable_ebcdic" = "xyes"; then
398      enable_rebuild_chartables=yes
399    
400      if test "x$enable_utf" = "xyes"; then
401        AC_MSG_ERROR([support for EBCDIC and UTF-8/16/32 cannot be enabled at the same time])
402      fi
403    
404      if test "x$enable_ebcdic_nl25" = "xno"; then
405        case "$ac_pcre_newline_value" in
406          10)   ac_pcre_newline_value=21 ;;
407          3338) ac_pcre_newline_value=3349 ;;
408        esac
409      else
410        case "$ac_pcre_newline_value" in
411          10)   ac_pcre_newline_value=37 ;;
412          3338) ac_pcre_newline_value=3365 ;;
413        esac
414      fi
415    fi
416    
417  # Check argument to --with-link-size  # Check argument to --with-link-size
418  case "$with_link_size" in  case "$with_link_size" in
419    2|3|4) ;;    2|3|4) ;;
# Line 167  case "$with_link_size" in Line 423  case "$with_link_size" in
423  esac  esac
424    
425  AH_TOP([  AH_TOP([
426  /* On Unix-like systems config.h.in is converted by "configure" into config.h.  /* PCRE is written in Standard C, but there are a few non-standard things it
427  Some other environments also support the use of "configure". PCRE is written in  can cope with, allowing it to run on SunOS4 and other "close to standard"
428  Standard C, but there are a few non-standard things it can cope with, allowing  systems.
429  it to run on SunOS4 and other "close to standard" systems.  
430    In environments that support the facilities, config.h.in is converted by
431  If you are going to build PCRE "by hand" on a system without "configure" you  "configure", or config-cmake.h.in is converted by CMake, into config.h. If you
432  should copy the distributed config.h.generic to config.h, and then set up the  are going to build PCRE "by hand" without using "configure" or CMake, you
433  macros the way you need them. Alternatively, you can avoid editing by using -D  should copy the distributed config.h.generic to config.h, and then edit the
434  on the compiler command line to set the macro values.  macro definitions to be the way you need them. You must then add
435    -DHAVE_CONFIG_H to all of your compile commands, so that config.h is included
436    at the start of every source.
437    
438    Alternatively, you can avoid editing by using -D on the compiler command line
439    to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H.
440    
441  PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if  PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if
442  HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set  HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set
# Line 188  AC_CHECK_HEADERS(limits.h sys/types.h sy Line 449  AC_CHECK_HEADERS(limits.h sys/types.h sy
449  # The files below are C++ header files.  # The files below are C++ header files.
450  pcre_have_type_traits="0"  pcre_have_type_traits="0"
451  pcre_have_bits_type_traits="0"  pcre_have_bits_type_traits="0"
452    
453    if test "x$enable_cpp" = "xyes" -a -z "$CXX"; then
454       AC_MSG_ERROR([You need a C++ compiler for C++ support.])
455    fi
456    
457  if test "x$enable_cpp" = "xyes" -a -n "$CXX"  if test "x$enable_cpp" = "xyes" -a -n "$CXX"
458  then  then
459  AC_LANG_PUSH(C++)  AC_LANG_PUSH(C++)
460    
461    # Older versions of pcre defined pcrecpp::no_arg, but in new versions
462    # it's called pcrecpp::RE::no_arg.  For backwards ABI compatibility,
463    # we want to make one an alias for the other.  Different systems do
464    # this in different ways.  Some systems, for instance, can do it via
465    # a linker flag: -alias (for os x 10.5) or -i (for os x <=10.4).
466    OLD_LDFLAGS="$LDFLAGS"
467    for flag in "-alias,__ZN7pcrecpp2RE6no_argE,__ZN7pcrecpp6no_argE" \
468                "-i__ZN7pcrecpp6no_argE:__ZN7pcrecpp2RE6no_argE"; do
469      AC_MSG_CHECKING([for alias support in the linker])
470      LDFLAGS="$OLD_LDFLAGS -Wl,$flag"
471      # We try to run the linker with this new ld flag.  If the link fails,
472      # we give up and remove the new flag from LDFLAGS.
473      AC_LINK_IFELSE([AC_LANG_PROGRAM([namespace pcrecpp {
474                                        class RE { static int no_arg; };
475                                        int RE::no_arg;
476                                      }],
477                                     [])],
478                     [AC_MSG_RESULT([yes]);
479                      EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag";
480                      break;],
481                     AC_MSG_RESULT([no]))
482    done
483    LDFLAGS="$OLD_LDFLAGS"
484    
485  # We could be more clever here, given we're doing AC_SUBST with this  # We could be more clever here, given we're doing AC_SUBST with this
486  # (eg set a var to be the name of the include file we want). But we're not  # (eg set a var to be the name of the include file we want). But we're not
487  # so it's easy to change back to 'regular' autoconf vars if we needed to.  # so it's easy to change back to 'regular' autoconf vars if we needed to.
# Line 201  AC_CHECK_HEADERS(bits/type_traits.h, [pc Line 491  AC_CHECK_HEADERS(bits/type_traits.h, [pc
491                                       [pcre_have_bits_type_traits="0"])                                       [pcre_have_bits_type_traits="0"])
492  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
493                                  [pcre_have_type_traits="0"])                                  [pcre_have_type_traits="0"])
494    
495    # (This isn't c++-specific, but is only used in pcrecpp.cc, so try this
496    # in a c++ context.  This matters becuase strtoimax is C99 and may not
497    # be supported by the C++ compiler.)
498    # Figure out how to create a longlong from a string: strtoll and
499    # equiv.  It's not enough to call AC_CHECK_FUNCS: hpux has a
500    # strtoll, for instance, but it only takes 2 args instead of 3!
501    # We have to call AH_TEMPLATE since AC_DEFINE_UNQUOTED below is complex.
502    AH_TEMPLATE(HAVE_STRTOQ, [Define to 1 if you have `strtoq'.])
503    AH_TEMPLATE(HAVE_STRTOLL, [Define to 1 if you have `strtoll'.])
504    AH_TEMPLATE(HAVE__STRTOI64, [Define to 1 if you have `_strtoi64'.])
505    AH_TEMPLATE(HAVE_STRTOIMAX, [Define to 1 if you have `strtoimax'.])
506    have_strto_fn=0
507    for fn in strtoq strtoll _strtoi64 strtoimax; do
508      AC_MSG_CHECKING([for $fn])
509      if test "$fn" = strtoimax; then
510        include=stdint.h
511      else
512        include=stdlib.h
513      fi
514      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <$include>],
515                                        [char* e; return $fn("100", &e, 10)])],
516                        [AC_MSG_RESULT(yes)
517                         AC_DEFINE_UNQUOTED(HAVE_`echo $fn | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`, 1,
518                                            [Define to 1 if you have `$fn'.])
519                         have_strto_fn=1
520                         break],
521                        [AC_MSG_RESULT(no)])
522    done
523    
524    if test "$have_strto_fn" = 1; then
525      AC_CHECK_TYPES([long long],
526                     [pcre_have_long_long="1"],
527                     [pcre_have_long_long="0"])
528      AC_CHECK_TYPES([unsigned long long],
529                     [pcre_have_ulong_long="1"],
530                     [pcre_have_ulong_long="0"])
531    else
532      pcre_have_long_long="0"
533      pcre_have_ulong_long="0"
534    fi
535    AC_SUBST(pcre_have_long_long)
536    AC_SUBST(pcre_have_ulong_long)
537    
538  AC_LANG_POP  AC_LANG_POP
539  fi  fi
540  # Using AC_SUBST eliminates the need to include config.h in a public .h file  # Using AC_SUBST eliminates the need to include config.h in a public .h file
# Line 208  AC_SUBST(pcre_have_type_traits) Line 542  AC_SUBST(pcre_have_type_traits)
542  AC_SUBST(pcre_have_bits_type_traits)  AC_SUBST(pcre_have_bits_type_traits)
543    
544  # Conditional compilation  # Conditional compilation
545    AM_CONDITIONAL(WITH_PCRE8, test "x$enable_pcre8" = "xyes")
546    AM_CONDITIONAL(WITH_PCRE16, test "x$enable_pcre16" = "xyes")
547    AM_CONDITIONAL(WITH_PCRE32, test "x$enable_pcre32" = "xyes")
548  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")
549    AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
550    AM_CONDITIONAL(WITH_JIT, test "x$enable_jit" = "xyes")
551    AM_CONDITIONAL(WITH_UTF, test "x$enable_utf" = "xyes")
552    AM_CONDITIONAL(WITH_VALGRIND, test "x$enable_valgrind" = "xyes")
553    
554  # Checks for typedefs, structures, and compiler characteristics.  # Checks for typedefs, structures, and compiler characteristics.
555    
556  AC_C_CONST  AC_C_CONST
557  AC_TYPE_SIZE_T  AC_TYPE_SIZE_T
558    
 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"])  
 AC_SUBST(pcre_have_long_long)  
 AC_SUBST(pcre_have_ulong_long)  
   
559  # Checks for library functions.  # Checks for library functions.
560    
561  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)  AC_CHECK_FUNCS(bcopy memmove strerror)
562    
563    # Check for the availability of libz (aka zlib)
564    
565    AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1])
566    AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1])
567    
568    # Check for the availability of libbz2. Originally we just used AC_CHECK_LIB,
569    # as for libz. However, this had the following problem, diagnosed and fixed by
570    # a user:
571    #
572    #   - libbz2 uses the Pascal calling convention (WINAPI) for the functions
573    #     under Win32.
574    #   - The standard autoconf AC_CHECK_LIB fails to include "bzlib.h",
575    #     therefore missing the function definition.
576    #   - The compiler thus generates a "C" signature for the test function.
577    #   - The linker fails to find the "C" function.
578    #   - PCRE fails to configure if asked to do so against libbz2.
579    #
580    # Solution:
581    #
582    #   - Replace the AC_CHECK_LIB test with a custom test.
583    
584    AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1])
585    # Original test
586    # AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1])
587    #
588    # Custom test follows
589    
590    AC_MSG_CHECKING([for libbz2])
591    OLD_LIBS="$LIBS"
592    LIBS="$LIBS -lbz2"
593    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
594    #ifdef HAVE_BZLIB_H
595    #include <bzlib.h>
596    #endif]],
597    [[return (int)BZ2_bzopen("conftest", "rb");]])],
598    [AC_MSG_RESULT([yes]);HAVE_LIBBZ2=1; break;],
599    AC_MSG_RESULT([no]))
600    LIBS="$OLD_LIBS"
601    
602    # Check for the availabiity of libreadline
603    
604    if test "$enable_pcretest_libreadline" = "yes"; then
605     AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1])
606     AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1])
607     AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lreadline"],
608       [unset ac_cv_lib_readline_readline;
609        AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-ltinfo"],
610         [unset ac_cv_lib_readline_readline;
611          AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lcurses"],
612           [unset ac_cv_lib_readline_readline;
613            AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lncurses"],
614             [unset ac_cv_lib_readline_readline;
615              AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lncursesw"],
616               [unset ac_cv_lib_readline_readline;
617                AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-ltermcap"],
618                 [LIBREADLINE=""],
619                 [-ltermcap])],
620               [-lncursesw])],
621             [-lncurses])],
622           [-lcurses])],
623         [-ltinfo])])
624     AC_SUBST(LIBREADLINE)
625     if test -n "$LIBREADLINE"; then
626       if test "$LIBREADLINE" != "-lreadline"; then
627         echo "-lreadline needs $LIBREADLINE"
628         LIBREADLINE="-lreadline $LIBREADLINE"
629       fi
630     fi
631    fi
632    
633    
634    # Check for the availability of libedit. Different distributions put its
635    # headers in different places. Try to cover the most common ones.
636    
637    if test "$enable_pcretest_libedit" = "yes"; then
638      AC_CHECK_HEADERS([editline/readline.h], [HAVE_EDITLINE_READLINE_H=1],
639        [AC_CHECK_HEADERS([edit/readline/readline.h], [HAVE_READLINE_READLINE_H=1],
640          [AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_READLINE_H=1])])])
641      AC_CHECK_LIB([edit], [readline], [LIBEDIT="-ledit"])
642    fi
643    
644  # This facilitates -ansi builds under Linux  # This facilitates -ansi builds under Linux
645  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
646    
647    PCRE_STATIC_CFLAG=""
648  if test "x$enable_shared" = "xno" ; then  if test "x$enable_shared" = "xno" ; then
649    AC_DEFINE([PCRE_STATIC], [1], [    AC_DEFINE([PCRE_STATIC], [1], [
650      Define if linking statically (TODO: make nice with Libtool)])      Define to any value if linking statically (TODO: make nice with Libtool)])
651      PCRE_STATIC_CFLAG="-DPCRE_STATIC"
652  fi  fi
653    AC_SUBST(PCRE_STATIC_CFLAG)
654    
655  # Here is where pcre specific defines are handled  # Here is where pcre specific defines are handled
656    
657  if test "$enable_utf8" = "yes"; then  if test "$enable_pcre8" = "yes"; then
658    AC_DEFINE([SUPPORT_UTF8], [], [    AC_DEFINE([SUPPORT_PCRE8], [], [
659      Define to enable support for the UTF-8 Unicode encoding.])      Define to any value to enable the 8 bit PCRE library.])
660    fi
661    
662    if test "$enable_pcre16" = "yes"; then
663      AC_DEFINE([SUPPORT_PCRE16], [], [
664        Define to any value to enable the 16 bit PCRE library.])
665    fi
666    
667    if test "$enable_pcre32" = "yes"; then
668      AC_DEFINE([SUPPORT_PCRE32], [], [
669        Define to any value to enable the 32 bit PCRE library.])
670    fi
671    
672    if test "$enable_jit" = "yes"; then
673      AX_PTHREAD([], [AC_MSG_ERROR([JIT support requires pthreads])])
674      CC="$PTHREAD_CC"
675      CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
676      LIBS="$PTHREAD_LIBS $LIBS"
677      AC_DEFINE([SUPPORT_JIT], [], [
678        Define to any value to enable support for Just-In-Time compiling.])
679    else
680      enable_pcregrep_jit="no"
681    fi
682    
683    if test "$enable_pcregrep_jit" = "yes"; then
684      AC_DEFINE([SUPPORT_PCREGREP_JIT], [], [
685        Define to any value to enable JIT support in pcregrep.])
686    fi
687    
688    if test "$enable_utf" = "yes"; then
689      AC_DEFINE([SUPPORT_UTF], [], [
690        Define to any value to enable support for the UTF-8/16/32 Unicode encoding.
691        This will work even in an EBCDIC environment, but it is incompatible
692        with the EBCDIC macro. That is, PCRE can support *either* EBCDIC
693        code *or* ASCII/UTF-8/16/32, but not both at once.])
694  fi  fi
695    
696  if test "$enable_unicode_properties" = "yes"; then  if test "$enable_unicode_properties" = "yes"; then
697    AC_DEFINE([SUPPORT_UCP], [], [    AC_DEFINE([SUPPORT_UCP], [], [
698      Define to enable support for Unicode properties])      Define to any value to enable support for Unicode properties.])
699  fi  fi
700    
701  if test "$enable_stack_for_recursion" = "no"; then  if test "$enable_stack_for_recursion" = "no"; then
702    AC_DEFINE([NO_RECURSE], [], [    AC_DEFINE([NO_RECURSE], [], [
703      PCRE uses recursive function calls to handle backtracking while      PCRE uses recursive function calls to handle backtracking while
704      matching. This can sometimes be a problem on systems that have      matching. This can sometimes be a problem on systems that have
705      stacks of limited size. Define NO_RECURSE to get a version that      stacks of limited size. Define NO_RECURSE to any value to get a
706      doesn't use recursion in the match() function; instead it creates      version that doesn't use recursion in the match() function; instead
707      its own stack by steam using pcre_recurse_malloc() to obtain memory      it creates its own stack by steam using pcre_recurse_malloc() to obtain
708      from the heap. For more detail, see the comments and other stuff      memory from the heap. For more detail, see the comments and other stuff
709      just above the match() function. On systems that support it,      just above the match() function.])
710      "configure" can be used to set this in the Makefile  fi
711      (use --disable-stack-for-recursion).])  
712    if test "$enable_pcregrep_libz" = "yes"; then
713      AC_DEFINE([SUPPORT_LIBZ], [], [
714        Define to any value to allow pcregrep to be linked with libz, so that it is
715        able to handle .gz files.])
716    fi
717    
718    if test "$enable_pcregrep_libbz2" = "yes"; then
719      AC_DEFINE([SUPPORT_LIBBZ2], [], [
720        Define to any value to allow pcregrep to be linked with libbz2, so that it
721        is able to handle .bz2 files.])
722    fi
723    
724    if test $with_pcregrep_bufsize -lt 8192 ; then
725      with_pcregrep_bufsize="8192"
726    fi
727    
728    AC_DEFINE_UNQUOTED([PCREGREP_BUFSIZE], [$with_pcregrep_bufsize], [
729      The value of PCREGREP_BUFSIZE determines the size of buffer used by pcregrep
730      to hold parts of the file it is searching. This is also the minimum value.
731      The actual amount of memory used by pcregrep is three times this number,
732      because it allows for the buffering of "before" and "after" lines.])
733    
734    if test "$enable_pcretest_libedit" = "yes"; then
735      AC_DEFINE([SUPPORT_LIBEDIT], [], [
736        Define to any value to allow pcretest to be linked with libedit.])
737      LIBREADLINE="$LIBEDIT"
738    elif test "$enable_pcretest_libreadline" = "yes"; then
739      AC_DEFINE([SUPPORT_LIBREADLINE], [], [
740        Define to any value to allow pcretest to be linked with libreadline.])
741  fi  fi
742    
743  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
744    The value of NEWLINE determines the newline character sequence. On    The value of NEWLINE determines the default newline character sequence. PCRE
745    Unix-like systems, "configure" can be used to override the default,    client programs can override this by selecting other values at run time. In
746    which is 10. The possible values are 10 (LF), 13 (CR), 3338 (CRLF),    ASCII environments, the value can be 10 (LF), 13 (CR), or 3338 (CRLF); in
747    or -1 (ANY).])    EBCDIC environments the value can be 21 or 37 (LF), 13 (CR), or 3349 or 3365
748      (CRLF) because there are two alternative codepoints (0x15 and 0x25) that are
749      used as the NL line terminator that is equivalent to ASCII LF. In both ASCII
750      and EBCDIC environments the value can also be -1 (ANY), or -2 (ANYCRLF).])
751    
752    if test "$enable_bsr_anycrlf" = "yes"; then
753      AC_DEFINE([BSR_ANYCRLF], [], [
754        By default, the \R escape sequence matches any Unicode line ending
755        character or sequence of characters. If BSR_ANYCRLF is defined (to any
756        value), this is changed so that backslash-R matches only CR, LF, or CRLF.
757        The build-time default can be overridden by the user of PCRE at runtime.])
758    fi
759    
760  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
761    The value of LINK_SIZE determines the number of bytes used to store    The value of LINK_SIZE determines the number of bytes used to store
762    links as offsets within the compiled regex. The default is 2, which    links as offsets within the compiled regex. The default is 2, which
763    allows for compiled patterns up to 64K long. This covers the vast    allows for compiled patterns up to 64K long. This covers the vast
764    majority of cases. However, PCRE can also be compiled to use 3 or 4    majority of cases. However, PCRE can also be compiled to use 3 or 4
765    bytes instead. This allows for longer patterns in extreme cases. On    bytes instead. This allows for longer patterns in extreme cases.])
   systems that support it, "configure" can be used to override this default.])  
766    
767  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [
768    When calling PCRE via the POSIX interface, additional working storage    When calling PCRE via the POSIX interface, additional working storage
# Line 282  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHO Line 771  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHO
771    interface provides only two. If the number of expected substrings is    interface provides only two. If the number of expected substrings is
772    small, the wrapper function uses space on the stack, because this is    small, the wrapper function uses space on the stack, because this is
773    faster than using malloc() for each call. The threshold above which    faster than using malloc() for each call. The threshold above which
774    the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD. On    the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD.])
   systems that support it, "configure" can be used to override this  
   default.])  
775    
776  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
777    The value of MATCH_LIMIT determines the default number of times the    The value of MATCH_LIMIT determines the default number of times the
# Line 293  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with Line 780  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with
780    limit. The limit exists in order to catch runaway regular    limit. The limit exists in order to catch runaway regular
781    expressions that take for ever to determine that they do not match.    expressions that take for ever to determine that they do not match.
782    The default is set very large so that it does not accidentally catch    The default is set very large so that it does not accidentally catch
783    legitimate cases. On systems that support it, "configure" can be    legitimate cases.])
   used to override this default default.])  
784    
785  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [
786    The above limit applies to all calls of match(), whether or not they    The above limit applies to all calls of match(), whether or not they
# Line 305  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSIO Line 791  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSIO
791    MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To    MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
792    have any useful effect, it must be less than the value of    have any useful effect, it must be less than the value of
793    MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.    MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
794    There is a runtime method for setting a different limit. On systems    There is a runtime method for setting a different limit.])
   that support it, "configure" can be used to override the default.])  
795    
796  AC_DEFINE([MAX_NAME_SIZE], [32], [  AC_DEFINE([MAX_NAME_SIZE], [32], [
797    This limit is parameterized just in case anybody ever wants to    This limit is parameterized just in case anybody ever wants to
# Line 318  AC_DEFINE([MAX_NAME_COUNT], [10000], [ Line 803  AC_DEFINE([MAX_NAME_COUNT], [10000], [
803    change it. Care must be taken if it is increased, because it guards    change it. Care must be taken if it is increased, because it guards
804    against integer overflow caused by enormously large patterns.])    against integer overflow caused by enormously large patterns.])
805    
806  AC_DEFINE([MAX_DUPLENGTH], [30000], [  AH_VERBATIM([PCRE_EXP_DEFN], [
   This limit is parameterized just in case anybody ever wants to  
   change it. Care must be taken if it is increased, because it guards  
   against integer overflow caused by enormously large patterns.])  
   
 AH_VERBATIM([PCRE_DATA_SCOPE], [  
807  /* If you are compiling for a system other than a Unix-like system or  /* If you are compiling for a system other than a Unix-like system or
808     Win32, and it needs some magic to be inserted before the definition     Win32, and it needs some magic to be inserted before the definition
809     of a function that is exported by the library, define this macro to     of a function that is exported by the library, define this macro to
810     contain the relevant magic. If you do not define this macro, it     contain the relevant magic. If you do not define this macro, a suitable
811     defaults to "extern" for a C compiler and "extern C" for a C++      __declspec value is used for Windows systems; in other environments
812     compiler on non-Win32 systems. This macro apears at the start of     "extern" is used for a C compiler and "extern C" for a C++ compiler.
813     every exported function that is part of the external API. It does     This macro apears at the start of every exported function that is part
814     not appear on functions that are "external" in the C sense, but     of the external API. It does not appear on functions that are "external"
815     which are internal to the library. */     in the C sense, but which are internal to the library. */
816  #undef PCRE_DATA_SCOPE])  #undef PCRE_EXP_DEFN])
817    
818  if test "$enable_ebcdic" = "yes"; then  if test "$enable_ebcdic" = "yes"; then
819    AC_DEFINE_UNQUOTED([EBCDIC], [], [    AC_DEFINE_UNQUOTED([EBCDIC], [], [
820      If you are compiling for a system that uses EBCDIC instead of ASCII      If you are compiling for a system that uses EBCDIC instead of ASCII
821      character codes, define this macro as 1. On systems that can use      character codes, define this macro to any value. You must also edit the
822      "configure", this can be done via --enable-ebcdic.])      NEWLINE macro below to set a suitable EBCDIC newline, commonly 21 (0x15).
823        On systems that can use "configure" or CMake to set EBCDIC, NEWLINE is
824        automatically adjusted. When EBCDIC is set, PCRE assumes that all input
825        strings are in EBCDIC. If you do not define this macro, PCRE will assume
826        input strings are ASCII or UTF-8/16/32 Unicode. It is not possible to build
827        a version of PCRE that supports both EBCDIC and UTF-8/16/32.])
828    fi
829    
830    if test "$enable_ebcdic_nl25" = "yes"; then
831      AC_DEFINE_UNQUOTED([EBCDIC_NL25], [], [
832        In an EBCDIC environment, define this macro to any value to arrange for
833        the NL character to be 0x25 instead of the default 0x15. NL plays the role
834        that LF does in an ASCII/Unicode environment. The value must also be set in
835        the NEWLINE macro below. On systems that can use "configure" or CMake to
836        set EBCDIC_NL25, the adjustment of NEWLINE is automatic.])
837    fi
838    
839    if test "$enable_valgrind" = "yes"; then
840      AC_DEFINE_UNQUOTED([SUPPORT_VALGRIND], [], [
841         Valgrind support to find invalid memory reads.])
842  fi  fi
843    
844  # Platform specific issues  # Platform specific issues
# Line 357  esac Line 856  esac
856  # The extra LDFLAGS for each particular library  # The extra LDFLAGS for each particular library
857  # (Note: The libpcre*_version bits are m4 variables, assigned above)  # (Note: The libpcre*_version bits are m4 variables, assigned above)
858    
859  EXTRA_LIBPCRE_LDFLAGS="$NO_UNDEFINED -version-info libpcre_version"  EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \
860                           $NO_UNDEFINED -version-info libpcre_version"
861    
862    EXTRA_LIBPCRE16_LDFLAGS="$EXTRA_LIBPCRE16_LDFLAGS \
863                           $NO_UNDEFINED -version-info libpcre16_version"
864    
865    EXTRA_LIBPCRE32_LDFLAGS="$EXTRA_LIBPCRE32_LDFLAGS \
866                           $NO_UNDEFINED -version-info libpcre32_version"
867    
868  EXTRA_LIBPCREPOSIX_LDFLAGS="$NO_UNDEFINED -version-info libpcreposix_version"  EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \
869                                $NO_UNDEFINED -version-info libpcreposix_version"
870    
871  EXTRA_LIBPCRECPP_LDFLAGS="$NO_UNDEFINED $EXPORT_ALL_SYMBOLS -version-info libpcrecpp_version"  EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS \
872                              $NO_UNDEFINED -version-info libpcrecpp_version \
873                              $EXPORT_ALL_SYMBOLS"
874    
875  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
876    AC_SUBST(EXTRA_LIBPCRE16_LDFLAGS)
877    AC_SUBST(EXTRA_LIBPCRE32_LDFLAGS)
878  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
879  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
880    
881  # When we run 'make distcheck', use these arguments.  # When we run 'make distcheck', use these arguments. Turning off compiler
882  DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"  # optimization makes it run faster.
883    DISTCHECK_CONFIGURE_FLAGS="CFLAGS='' CXXFLAGS='' --enable-pcre16 --enable-pcre32 --enable-jit --enable-cpp --enable-unicode-properties"
884  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
885    
886    # Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is
887    # specified, the relevant library is available.
888    
889    if test "$enable_pcregrep_libz" = "yes"; then
890      if test "$HAVE_ZLIB_H" != "1"; then
891        echo "** Cannot --enable-pcregrep-libz because zlib.h was not found"
892        exit 1
893      fi
894      if test "$HAVE_LIBZ" != "1"; then
895        echo "** Cannot --enable-pcregrep-libz because libz was not found"
896        exit 1
897      fi
898      LIBZ="-lz"
899    fi
900    AC_SUBST(LIBZ)
901    
902    if test "$enable_pcregrep_libbz2" = "yes"; then
903      if test "$HAVE_BZLIB_H" != "1"; then
904        echo "** Cannot --enable-pcregrep-libbz2 because bzlib.h was not found"
905        exit 1
906      fi
907      if test "$HAVE_LIBBZ2" != "1"; then
908        echo "** Cannot --enable-pcregrep-libbz2 because libbz2 was not found"
909        exit 1
910      fi
911      LIBBZ2="-lbz2"
912    fi
913    AC_SUBST(LIBBZ2)
914    
915    # Similarly for --enable-pcretest-readline
916    
917    if test "$enable_pcretest_libedit" = "yes"; then
918      if test "$enable_pcretest_libreadline" = "yes"; then
919        echo "** Cannot use both --enable-pcretest-libedit and --enable-pcretest-readline"
920        exit 1
921      fi
922      if test "$HAVE_EDITLINE_READLINE_H" != "1" -a \
923              "$HAVE_READLINE_READLINE_H" != "1"; then
924        echo "** Cannot --enable-pcretest-libedit because neither editline/readline.h"
925        echo "** nor readline/readline.h was found."
926        exit 1
927      fi
928      if test -z "$LIBEDIT"; then
929        echo "** Cannot --enable-pcretest-libedit because libedit library was not found."
930        exit 1
931      fi
932    fi
933    
934    if test "$enable_pcretest_libreadline" = "yes"; then
935      if test "$HAVE_READLINE_H" != "1"; then
936        echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found."
937        exit 1
938      fi
939      if test "$HAVE_HISTORY_H" != "1"; then
940        echo "** Cannot --enable-pcretest-readline because readline/history.h was not found."
941        exit 1
942      fi
943      if test -z "$LIBREADLINE"; then
944        echo "** Cannot --enable-pcretest-readline because readline library was not found."
945        exit 1
946      fi
947    fi
948    
949    # Check for valgrind
950    
951    if test "$enable_valgrind" = "yes"; then
952      m4_ifdef([PKG_CHECK_MODULES],
953               [PKG_CHECK_MODULES([VALGRIND],[valgrind])],
954               [AC_MSG_ERROR([pkg-config not supported])])
955    fi
956    
957    # test code coverage reporting
958    if test "$enable_coverage" = "yes"; then
959      if test "x$GCC" != "xyes"; then
960        AC_MSG_ERROR([Code coverage reports can only be generated when using GCC])
961      fi
962    
963      # ccache is incompatible with gcov
964      AC_PATH_PROG([SHTOOL],[shtool],[false])
965      case `$SHTOOL path $CC` in
966        *ccache*) cc_ccache=yes;;
967        *) cc_ccache=no;;
968      esac
969    
970      if test "$cc_ccache" = "yes"; then
971        if test -z "$CCACHE_DISABLE" -o "$CCACHE_DISABLE" != "1"; then
972          AC_MSG_ERROR([must export CCACHE_DISABLE=1 to disable ccache for code coverage])
973        fi
974      fi
975    
976      AC_ARG_VAR([LCOV],[the ltp lcov program])
977      AC_PATH_PROG([LCOV],[lcov],[false])
978      if test "x$LCOV" = "xfalse"; then
979        AC_MSG_ERROR([lcov not found])
980      fi
981    
982      AC_ARG_VAR([GENHTML],[the ltp genhtml program])
983      AC_PATH_PROG([GENHTML],[genhtml],[false])
984      if test "x$GENHTML" = "xfalse"; then
985        AC_MSG_ERROR([genhtml not found])
986      fi
987    
988      AC_DEFINE([SUPPORT_GCOV],[1], [
989        Define to allow pcretest and pcregrep to be linked with gcov, so that they
990        are able to generate code coverage reports.])
991    
992      # And add flags needed for gcov
993      GCOV_CFLAGS="-O0 -ggdb3 -fprofile-arcs -ftest-coverage"
994      GCOV_CXXFLAGS="-O0 -ggdb3 -fprofile-arcs -ftest-coverage"
995      GCOV_LIBS="-lgcov"
996      AC_SUBST([GCOV_CFLAGS])
997      AC_SUBST([GCOV_CXXFLAGS])
998      AC_SUBST([GCOV_LIBS])
999    fi # enable_coverage
1000    
1001    AM_CONDITIONAL([WITH_GCOV],[test "x$enable_coverage" = "xyes"])
1002    
1003  # Produce these files, in addition to config.h.  # Produce these files, in addition to config.h.
1004  AC_CONFIG_FILES(  AC_CONFIG_FILES(
1005          Makefile          Makefile
         RunGrepTest  
         RunTest  
1006          libpcre.pc          libpcre.pc
1007            libpcre16.pc
1008            libpcre32.pc
1009            libpcreposix.pc
1010          libpcrecpp.pc          libpcrecpp.pc
1011          pcre-config          pcre-config
1012          pcre.h          pcre.h
# Line 385  AC_CONFIG_FILES( Line 1015  AC_CONFIG_FILES(
1015  )  )
1016    
1017  # Make the generated script files executable.  # Make the generated script files executable.
1018  AC_CONFIG_COMMANDS([script-chmod], [chmod a+x RunTest RunGrepTest pcre-config])  AC_CONFIG_COMMANDS([script-chmod], [chmod a+x pcre-config])
1019    
1020    # Make sure that pcre_chartables.c is removed in case the method for
1021    # creating it was changed by reconfiguration.
1022    AC_CONFIG_COMMANDS([delete-old-chartables], [rm -f pcre_chartables.c])
1023    
1024  AC_OUTPUT  AC_OUTPUT
1025    
1026  # Print out a nice little message after configure is run displaying your  # Print out a nice little message after configure is run displaying the
1027  # chosen options.  # chosen options.
1028  #  
1029    ebcdic_nl_code=n/a
1030    if test "$enable_ebcdic_nl25" = "yes"; then
1031      ebcdic_nl_code=0x25
1032    elif test "$enable_ebcdic" = "yes"; then
1033      ebcdic_nl_code=0x15
1034    fi
1035    
1036  cat <<EOF  cat <<EOF
1037    
1038  $PACKAGE-$VERSION configuration summary:  $PACKAGE-$VERSION configuration summary:
1039    
1040      Install prefix ......... : ${prefix}      Install prefix .................. : ${prefix}
1041      C preprocessor ......... : ${CPP}      C preprocessor .................. : ${CPP}
1042      C compiler ............. : ${CC}      C compiler ...................... : ${CC}
1043      C++ preprocessor ....... : ${CXXCPP}      C++ preprocessor ................ : ${CXXCPP}
1044      C++ compiler ........... : ${CXX}      C++ compiler .................... : ${CXX}
1045      Linker ................. : ${LD}      Linker .......................... : ${LD}
1046      C preprocessor flags ... : ${CPPFLAGS}      C preprocessor flags ............ : ${CPPFLAGS}
1047      C compiler flags ....... : ${CFLAGS}      C compiler flags ................ : ${CFLAGS} ${VISIBILITY_CFLAGS}
1048      C++ compiler flags ..... : ${CXXFLAGS}      C++ compiler flags .............. : ${CXXFLAGS} ${VISIBILITY_CXXFLAGS}
1049      Linker flags ........... : ${LDFLAGS}      Linker flags .................... : ${LDFLAGS}
1050      Extra libraries ........ : ${LIBS}      Extra libraries ................. : ${LIBS}
1051    
1052      Build C++ library ...... : ${enable_cpp}      Build 8 bit pcre library ........ : ${enable_pcre8}
1053      Enable UTF-8 support ... : ${enable_utf8}      Build 16 bit pcre library ....... : ${enable_pcre16}
1054      Unicode properties ..... : ${enable_unicode_properties}      Build 32 bit pcre library ....... : ${enable_pcre32}
1055      Newline char/sequence .. : ${enable_newline}      Build C++ library ............... : ${enable_cpp}
1056      EBCDIC coding .......... : ${enable_ebcdic}      Enable JIT compiling support .... : ${enable_jit}
1057      Use stack recursion .... : ${enable_stack_for_recursion}      Enable UTF-8/16/32 support ...... : ${enable_utf}
1058      POSIX mem threshold .... : ${with_posix_malloc_threshold}      Unicode properties .............. : ${enable_unicode_properties}
1059      Internal link size ..... : ${with_link_size}      Newline char/sequence ........... : ${enable_newline}
1060      Match limit ............ : ${with_match_limit}      \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}
1061      Match limit recursion .. : ${with_match_limit_recursion}      EBCDIC coding ................... : ${enable_ebcdic}
1062      Build shared libs ...... : ${enable_shared}      EBCDIC code for NL .............. : ${ebcdic_nl_code}
1063      Build static libs ...... : ${enable_static}      Rebuild char tables ............. : ${enable_rebuild_chartables}
1064        Use stack recursion ............. : ${enable_stack_for_recursion}
1065        POSIX mem threshold ............. : ${with_posix_malloc_threshold}
1066        Internal link size .............. : ${with_link_size}
1067        Match limit ..................... : ${with_match_limit}
1068        Match limit recursion ........... : ${with_match_limit_recursion}
1069        Build shared libs ............... : ${enable_shared}
1070        Build static libs ............... : ${enable_static}
1071        Use JIT in pcregrep ............. : ${enable_pcregrep_jit}
1072        Buffer size for pcregrep ........ : ${with_pcregrep_bufsize}
1073        Link pcregrep with libz ......... : ${enable_pcregrep_libz}
1074        Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}
1075        Link pcretest with libedit ...... : ${enable_pcretest_libedit}
1076        Link pcretest with libreadline .. : ${enable_pcretest_libreadline}
1077        Valgrind support ................ : ${enable_valgrind}
1078        Code coverage ................... : ${enable_coverage}
1079    
1080  EOF  EOF
1081    

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