| 1 | dnl Process this file with autoconf to produce a configure script. |
|---|
| 2 | AC_INIT(sed/sed.c) |
|---|
| 3 | AM_CONFIG_HEADER(config.h:config_h.in) |
|---|
| 4 | AC_PREREQ(2.12)dnl (not tested with anything older) |
|---|
| 5 | AM_INIT_AUTOMAKE(sed, 3.02) |
|---|
| 6 | AC_PROG_CC |
|---|
| 7 | AC_PROG_RANLIB |
|---|
| 8 | |
|---|
| 9 | dnl Solaris 2.6 needs special compilation flags to support large files |
|---|
| 10 | dnl (i.e. files larger than 2 GB). |
|---|
| 11 | dnl This code frament taken from the configure.in file from patch-2.5. |
|---|
| 12 | dnl Hopefully someday it will be handled directly by autoconf |
|---|
| 13 | dnl without having to include this mess here. |
|---|
| 14 | # If available, prefer support for large files unless the user specified |
|---|
| 15 | # one of the CPPFLAGS, LDFLAGS, or LIBS variables. |
|---|
| 16 | AC_MSG_CHECKING(whether large file support needs explicit enabling) |
|---|
| 17 | ac_getconfs='' |
|---|
| 18 | ac_result=yes |
|---|
| 19 | ac_set='' |
|---|
| 20 | ac_shellvars='CPPFLAGS LDFLAGS LIBS' |
|---|
| 21 | for ac_shellvar in $ac_shellvars; do |
|---|
| 22 | case $ac_shellvar in |
|---|
| 23 | CPPFLAGS) ac_lfsvar=LFS_CFLAGS ;; |
|---|
| 24 | *) ac_lfsvar=LFS_$ac_shellvar ;; |
|---|
| 25 | esac |
|---|
| 26 | eval test '"${'$ac_shellvar'+set}"' = set && ac_set=$ac_shellvar |
|---|
| 27 | (getconf $ac_lfsvar) >/dev/null 2>&1 || { ac_result=no; break; } |
|---|
| 28 | ac_getconf=`getconf $ac_lfsvar` |
|---|
| 29 | ac_getconfs=$ac_getconfs$ac_getconf |
|---|
| 30 | eval ac_test_$ac_shellvar=\$ac_getconf |
|---|
| 31 | done |
|---|
| 32 | case "$ac_result$ac_getconfs" in |
|---|
| 33 | yes) ac_result=no ;; |
|---|
| 34 | esac |
|---|
| 35 | case "$ac_result$ac_set" in |
|---|
| 36 | yes?*) ac_result="yes, but $ac_set is already set, so use its settings" |
|---|
| 37 | esac |
|---|
| 38 | AC_MSG_RESULT($ac_result) |
|---|
| 39 | case $ac_result in |
|---|
| 40 | yes) |
|---|
| 41 | for ac_shellvar in $ac_shellvars; do |
|---|
| 42 | eval $ac_shellvar=\$ac_test_$ac_shellvar |
|---|
| 43 | done ;; |
|---|
| 44 | esac |
|---|
| 45 | |
|---|
| 46 | AC_MINIX |
|---|
| 47 | AC_AIX |
|---|
| 48 | AC_CHECK_LIB(cposix,strerror) |
|---|
| 49 | |
|---|
| 50 | AC_STDC_HEADERS |
|---|
| 51 | AC_CHECK_HEADERS(string.h stdlib.h limits.h unistd.h memory.h sys/types.h) |
|---|
| 52 | AC_C_CONST |
|---|
| 53 | AC_TYPE_SIZE_T |
|---|
| 54 | |
|---|
| 55 | AC_MSG_CHECKING(which regex library to use) |
|---|
| 56 | ac_regex_lib=lib/regex.o |
|---|
| 57 | AC_ARG_WITH(regex, |
|---|
| 58 | [ --with-regex=REGEX-LIB specify an alternative regex implementation], |
|---|
| 59 | [case "$withval" in yes|no) ;; *) ac_regex_lib="$withval" ;; esac]) |
|---|
| 60 | case "$ac_regex_lib" in |
|---|
| 61 | lib/regex.o) LIBOBJS="$LIBOBJS regex.o" ;; |
|---|
| 62 | ""|no) ;; |
|---|
| 63 | *) LIBS="$LIBS $ac_regex_lib" ;; |
|---|
| 64 | esac |
|---|
| 65 | case "$ac_regex_lib" in |
|---|
| 66 | "") AC_MSG_RESULT(using system's regex) ;; |
|---|
| 67 | *) AC_MSG_RESULT(using $ac_regex_lib) ;; |
|---|
| 68 | esac |
|---|
| 69 | |
|---|
| 70 | case " $LIBOBJS " in |
|---|
| 71 | *\ regex.o\ *) |
|---|
| 72 | ac_cv_func_regnexec=yes |
|---|
| 73 | ac_cv_func_regexec=yes |
|---|
| 74 | cat >> confdefs.h <<\EOF |
|---|
| 75 | #define HAVE_REGNEXEC 1 |
|---|
| 76 | #define HAVE_REGEXEC 1 |
|---|
| 77 | EOF |
|---|
| 78 | AC_DEFINE(USE_REGEX_GNU_H) |
|---|
| 79 | ;; |
|---|
| 80 | *) |
|---|
| 81 | AC_CHECK_HEADERS(regex.h) |
|---|
| 82 | case "$ac_cv_header_regex_h" in |
|---|
| 83 | yes) ;; |
|---|
| 84 | *) |
|---|
| 85 | AC_MSG_ERROR(dnl |
|---|
| 86 | <regex.h> header is required for use with non-default regex implementation) |
|---|
| 87 | ;; |
|---|
| 88 | esac |
|---|
| 89 | AC_CHECK_FUNCS(regnexec regexec) |
|---|
| 90 | ;; |
|---|
| 91 | esac |
|---|
| 92 | case "$ac_cv_func_regnexec $ac_cv_func_regexec" in |
|---|
| 93 | *yes*) ;; |
|---|
| 94 | *) AC_MSG_ERROR(at least one of regexec() or regnexec() must be supported) ;; |
|---|
| 95 | esac |
|---|
| 96 | |
|---|
| 97 | AC_FUNC_ALLOCA |
|---|
| 98 | AC_FUNC_MMAP |
|---|
| 99 | AC_FUNC_VPRINTF |
|---|
| 100 | |
|---|
| 101 | AC_REPLACE_FUNCS(memchr memcmp memmove strerror) |
|---|
| 102 | AC_CHECK_FUNCS(isatty bcopy bzero isascii memcpy) |
|---|
| 103 | |
|---|
| 104 | AC_ARG_PROGRAM |
|---|
| 105 | AC_OUTPUT(Makefile djgpp/Makefile doc/Makefile dnl |
|---|
| 106 | lib/Makefile sed/Makefile testsuite/Makefile |
|---|
| 107 | dnl testsuite/version.good:testsuite/version.gin dnl |
|---|
| 108 | ) |
|---|
